Storm damage to a conservatory is generally covered under a standard home insurance policy, but how quickly and smoothly a claim goes depends heavily on what you do — and don’t do — in the first few hours and days.

Storm damage is generally covered as standard

The Association of British Insurers (ABI), the trade body representing UK insurers, confirms that damage caused by storms and flooding is covered by most standard home insurance and commercial business policies. This means a conservatory roof torn or cracked by wind, or damage from a fallen branch during a storm, is the kind of event standard cover is specifically designed to respond to — it isn’t generally something requiring specialist add-on cover, unlike some other risks.

Contact your insurer first, before arranging repairs yourself

ABI guidance is direct that the first step after storm damage is to contact your insurer as soon as possible, who will guide you on next steps, clean-up, and the information needed to progress the claim. Where the damage genuinely needs urgent, emergency repair — for example to stop water getting into the rest of the house through a damaged conservatory roof — the ABI advises speaking to your insurer first if at all possible, and if you do need to act before reaching them, to keep every receipt, since this becomes part of the claim.

Don’t throw away damaged items before they’re assessed

ABI guidance specifically advises against rushing to dispose of damaged items unless they pose a danger to health, because items that look ruined may still be repairable or restorable, and a loss adjuster or insurer will generally want to see, or be told about, the actual damage rather than working from a description alone. For a damaged conservatory specifically, this can mean leaving broken glazing panels, damaged furniture or a cracked roof panel in place (where it’s safe to do so) until the insurer has confirmed what they need documented.

What happens once a claim is open: the loss adjuster’s role

ABI guidance explains that a loss adjuster is typically appointed to assess the claim, carrying out an initial assessment of the damage, explaining the repair process, and setting out the options for alternative accommodation if needed. If a conservatory forms part of a home that’s otherwise uninhabitable during repairs, ABI guidance confirms the insurer will arrange and pay for temporary accommodation in line with the policy — though for a self-contained conservatory that doesn’t affect the habitability of the rest of the house, this specific provision is less likely to be relevant.

What standard storm cover generally doesn’t extend to

Storm and weather damage cover is generally about sudden, identifiable events — a specific storm causing specific damage — rather than gradual deterioration. A conservatory roof that’s been slowly failing due to age, wear or a lack of maintenance, rather than a single identifiable storm event, is a different kind of claim, and insurers commonly distinguish between the two when assessing what’s covered. Keeping basic maintenance up to date, and being able to point to a specific storm date and event if you do need to claim, both support a cleaner claims process.

FAQs

Do I need to report storm damage immediately, or can it wait?

Contacting your insurer as soon as possible is the ABI’s own advice — delaying can complicate a claim, particularly if further damage occurs in the meantime or if there’s any question about exactly when the damage happened.

Will my premium automatically go up after a storm damage claim?

It can, since a claims history is one of the factors insurers weigh when calculating premiums, though a single weather-related claim is generally treated differently from claims linked to an ongoing risk — checking with your specific insurer is the only way to know how it will affect your renewal.

Does it matter if the conservatory was added after the policy started?

Yes — insurers generally need to be told about significant additions like a conservatory so the buildings sum insured and cover reflect the property as it now stands; an unreported conservatory could complicate a claim relating to it.

Sources

This guide draws on the following primary sources, current as of 18 September 2026:

• Association of British Insurers: Insurance advice for those affected by Storm Bert

Related guides

Compare Conservatories is an independent guide. We may earn a fee from some links; this never affects what we write. This article is general information, not legal or planning advice on any specific property — always confirm requirements directly with your local planning authority.

Most roof-mounted solar installations, including on a conservatory, fall under permitted development in England — but the specific size and position conditions, and whether the roof can actually take the weight, both need checking separately.

When permitted development covers a solar installation

The Planning Portal’s official guidance confirms that in the majority of cases, installing solar PV doesn’t require a separate planning application, and this generally extends to panels mounted on a conservatory roof as much as on a main house roof. The guidance sets specific physical limits for this to apply: on a pitched roof, panels shouldn’t be installed above the highest part of the roof (excluding the chimney) and shouldn’t project more than 200mm from the roof slope; on a flat roof, the highest part of the equipment can’t be more than 600mm higher than the highest part of the roof.

Conservation areas, listed buildings and scheduled monuments

The Planning Portal guidance sets out specific restrictions for protected sites: panels must not be installed on a building within the grounds of a listed building, or on a site designated as a scheduled monument, regardless of the general permitted development allowance. In conservation areas or World Heritage Sites, panels cannot be fitted to a wall or roof enclosure that fronts a highway — a restriction specifically aimed at protecting street-facing appearance in these more tightly controlled areas, which can be directly relevant to a conservatory built at the front or side of a property rather than the rear.

The structural question that planning permission doesn’t answer

Even where an installation clearly qualifies as permitted development, that says nothing about whether the specific conservatory roof can actually carry the additional weight of solar panels and their mounting frames. A conservatory roof, particularly an older polycarbonate or lightweight glass roof, is often designed around a much lighter loading than a house’s main tiled roof, and wasn’t necessarily specified with solar panel loading in mind at all — this is a structural engineering question, entirely separate from whether planning permission is needed, and it needs answering before any installation decision, not after.

Building regulations and the electrical connection

Beyond the roof’s ability to bear the load, a solar PV installation involves electrical work that needs to meet building regulations requirements, typically carried out or signed off by a certified installer under a competent person scheme, covering the connection into the property’s electrical system safely. Where the conservatory roof itself needs structural reinforcement to take the panels, that reinforcement work may separately trigger building regulations requirements around the roof structure itself, on top of the electrical certification for the panels.

Questions worth putting to a solar installer considering a conservatory roof

Before proceeding, it’s worth asking an installer directly whether they’ve assessed the specific roof’s load-bearing capacity, whether the existing roof structure (glazing bars, ridge and supporting frame) is rated for the additional weight or would need strengthening first, and whether the panel positioning keeps within the permitted development limits on height and projection covered above rather than assuming it does. A reputable installer should be able to answer all three without hesitation, rather than treating the conservatory roof as no different from a standard tiled roof.

FAQs

Do I need planning permission for solar panels on a rear conservatory?

In most cases, no — rear-facing conservatory roofs generally fall under the same permitted development allowance as the main house roof, provided the size and position conditions are met, though it’s still worth confirming with your council if there’s any doubt, particularly in a conservation area.

Can any conservatory roof structurally take solar panels?

Not necessarily — many lightweight polycarbonate or glass conservatory roofs weren’t designed for this additional loading, so a structural assessment specific to your roof is essential before assuming it’s straightforward.

Does a solar installation on a conservatory affect Building Regulations compliance for the conservatory itself?

It can, particularly if the roof needs reinforcement to take the panel loading — this is worth raising directly with a structural engineer or your installer rather than assuming the two projects are entirely separate.

Sources

This guide draws on the following primary sources, current as of 18 September 2026:

• Planning Portal: Planning permission – solar equipment mounted on a house or building

Related guides

Compare Conservatories is an independent guide. We may earn a fee from some links; this never affects what we write. This article is general information, not legal or planning advice on any specific property — always confirm requirements directly with your local planning authority.

The choice between an unsecured homeowner loan and a secured second charge mortgage for funding a conservatory ultimately comes down to how much you need to borrow, and how comfortable you are putting your home behind that borrowing.

The basic split: unsecured borrowing vs borrowing secured on your home

An unsecured personal loan or homeowner loan for a conservatory isn’t tied to your property as security, meaning the lender can’t repossess your home directly if repayments are missed, though missed payments still damage your credit file and can lead to debt recovery action. A second charge mortgage, by contrast, is secured against your property in addition to your existing (first charge) mortgage, which generally allows for larger loan amounts and potentially lower interest rates than unsecured borrowing, but at the cost of your home itself being at risk if repayments aren’t kept up.

What a second charge mortgage actually is

MoneyHelper’s guidance describes a second charge mortgage as a loan secured on your property taken from a lender other than your main mortgage provider, sitting behind your existing mortgage in priority. It’s commonly considered specifically where your existing mortgage lender won’t lend you more under your current arrangement, or where you don’t want to remortgage and lose a good existing interest rate by increasing your borrowing through your main mortgage instead.

The real cost and risk trade-off

MoneyHelper’s guidance is direct that the interest rate on a second charge mortgage is often higher than your existing first mortgage rate, but is typically still lower than the rates you’d find on an unsecured personal loan or on credit cards — reflecting that the lender has property security behind the loan. The trade-off is equally direct: because it’s secured against your home, MoneyHelper’s guidance warns that you could lose your home if you don’t keep up the repayments, a consequence that simply doesn’t apply in the same way to an unsecured loan.

A further advance from your existing lender, as a third option

Rather than taking out a completely separate second charge mortgage, some homeowners are able to borrow more from their existing mortgage lender directly, known as a further advance — effectively increasing the size of your existing mortgage rather than adding a second, separate secured loan behind it. Whether this is available, and on what terms, depends on your existing lender’s criteria and how much equity you have in the property, so it’s worth asking your current lender what they’d offer before assuming a second charge mortgage with a new lender is the only secured option.

Questions worth asking before you borrow for a conservatory specifically

Given a conservatory sits at the lower end of home extension costs, it’s worth genuinely questioning whether the loan amount needed justifies putting your home at risk through secured borrowing at all, versus a smaller unsecured loan, savings, or simply scaling back the specification. Comparing the total cost of borrowing — not just the headline interest rate, but arrangement fees, valuation fees and any early repayment charges — across at least an unsecured option and a secured option gives a genuinely comparable picture before committing to either route.

FAQs

Is a second charge mortgage the same as remortgaging?

No — remortgaging replaces your existing mortgage with a new one (potentially with a new lender), while a second charge mortgage sits alongside your existing mortgage as a separate, additional loan secured on the same property.

Can I get a second charge mortgage with bad credit?

It’s generally more difficult and more expensive, since second charge lenders assess affordability and credit history similarly to other secured lending, though some specialist lenders focus specifically on this market — comparing terms carefully matters even more in this situation.

Is an unsecured loan always cheaper overall for a conservatory-sized project?

Not necessarily in interest rate terms, since secured lending often has a lower rate, but an unsecured loan avoids putting your home directly at risk and often has simpler, faster approval — which one is genuinely cheaper depends on the loan amount, your credit profile and the specific rates on offer.

Sources

This guide draws on the following primary sources, current as of 18 September 2026:

• MoneyHelper: Second charge or second mortgages

Related guides

Compare Conservatories is an independent guide. We may earn a fee from some links; this never affects what we write. This article is general information, not legal or planning advice on any specific property — always confirm requirements directly with your local planning authority.

A conservatory and a loft conversion solve different space problems at very different price points — comparing them on cost alone misses that they usually aren’t actually interchangeable options for the same need.

The headline cost difference

A conservatory generally carries what’s often described as the smallest price tag among common home extension options, while a loft conversion for a typical 30 square metre space runs considerably higher — commonly quoted at roughly £22,500 to £30,000 for a simpler Velux (roof-light) conversion, £40,000 to £60,000 for a dormer conversion, and £60,000 to £85,000 or more for a full mansard conversion, depending on the property and specification. That gap alone explains why a conservatory is often the first extra-space option homeowners consider, even before weighing up what each option actually adds.

What each option typically adds to your home’s value

Industry guidance on loft conversions commonly cites a value uplift in the region of 15% to 25% for a well-executed conversion, with the strongest returns generally coming from conversions that add a genuine bedroom, particularly with an en-suite — on a higher-value property, this can translate into a value increase well above the conversion’s own cost. A conservatory is also generally considered value-adding, but it isn’t usually counted as adding a bedroom or as significantly increasing a property’s official habitable floor area in the way a loft conversion can, which is part of why the value comparison tends to favour the loft conversion despite its higher upfront cost.

Comfort and year-round usability aren’t the same either

A loft conversion, built to full building regulations with proper insulation, heating and often an en-suite, functions as genuine year-round living space in the same way as any other room in the house. A conservatory, unless built to a higher specification with proper insulation and glazing, can struggle with extremes — uncomfortably hot in direct summer sun and difficult to heat economically in winter — which is a genuine practical trade-off against its lower upfront cost, and one worth weighing against how the extra space will actually be used through the year.

Regulatory process and how long each one actually takes

Conservatories in the UK are frequently built under permitted development, without a full planning application, and because of their lighter-weight construction can often be completed within days to a few weeks once work starts. A loft conversion typically involves full building regulations approval regardless of its planning status, structural work to strengthen the floor and roof, and a considerably longer build programme, commonly running to several weeks or a small number of months depending on the conversion type and complexity.

Working out which one actually fits the need

The practical way to choose isn’t simply comparing headline costs, but working backward from what the space is actually for: a bright, semi-outdoor-feeling room for dining or relaxing generally points toward a conservatory, while a genuine extra bedroom, home office used daily year-round, or a space intended to be indistinguishable from the rest of the house points toward a loft conversion, budget allowing. For some properties, a loft conversion simply isn’t feasible — limited roof height, planning constraints, or an already-converted loft — in which case the comparison resolves itself regardless of value calculations.

FAQs

Can I add both a conservatory and a loft conversion?

Yes, there’s no rule against doing both, and many homeowners do exactly this over time — they solve different space problems, so combining them isn’t redundant in the way choosing between two similar extensions might be.

Does a conservatory count toward a property’s official floor area on paper?

This depends on how it’s built and recorded, but a standard lightweight conservatory is often not counted the same way as fully insulated, permanent living space — a factor worth checking with a local estate agent if maximising formal floor area is part of the goal.

Is a loft conversion always possible?

No — roof height, the type of roof structure, and existing loft use (such as an already-converted space or one housing a water tank that’s expensive to relocate) can all rule it out or add significant cost, which is why a feasibility check from a specialist is worth doing before comparing costs in detail.

Sources

This guide draws on the following primary sources, current as of 18 September 2026:

• resi.co.uk: Does a loft conversion or rear extension add more value to your home?

Related guides

Compare Conservatories is an independent guide. We may earn a fee from some links; this never affects what we write. This article is general information, not legal or planning advice on any specific property — always confirm requirements directly with your local planning authority.

A conservatory that would be permitted development in England isn’t automatically permitted development in Scotland — the size limits, boundary rules and conservation area treatment are set separately by Scottish planning guidance.

The single-storey extension limits that apply in Scotland

mygov.scot guidance sets out that a single-storey extension, which is how a conservatory is normally treated, doesn’t need planning permission in Scotland provided it’s built at the back of the house, doesn’t project more than 3 metres from the original wall for a terraced house or 4 metres for a detached or semi-detached house, has eaves no higher than 3 metres, and reaches no more than 4 metres in total height. These figures are broadly similar in shape to England’s permitted development rules covered elsewhere on this site, but they aren’t identical, and relying on English figures when planning a Scottish build risks getting the size wrong.

Ground area and garden coverage limits

Beyond the projection and height limits, Scottish guidance also caps how much of the property a permitted development extension can add: it must not increase the total ground area of the original house, and it must not result in more than half of the garden area (specifically the area around the original house, excluding the house itself) being covered by additions. This garden-coverage limit is conceptually similar to England’s 50% garden rule covered elsewhere on this site, but is set out under Scotland’s own guidance and enforced by Scottish planning authorities.

Conservation areas remove the permitted development right entirely

mygov.scot guidance is direct on this point: permitted development rights for this type of extension don’t apply at all if the property is in a conservation area. This is a stricter position than England’s general approach, where conservatories can often still be permitted development within a conservation area subject to other conditions — in Scotland, being within a conservation area takes a single-storey rear extension out of permitted development altogether, meaning a full planning application is needed regardless of how modest the design is.

Multi-storey extensions and the 10-metre boundary rule

Where a proposed structure is more than single-storey, Scottish guidance applies a materially different test: it must sit at least 10 metres away from any property boundary to qualify as permitted development, alongside not exceeding the height of the existing house and not exceeding the original ground area. Most conservatories are single-storey and fall under the simpler rear-extension rules above, but this distinction matters for anything built over an existing single-storey structure or as part of a larger project.

Why checking with the council still matters, even within the limits

mygov.scot’s own guidance is explicit that homeowners should always check with their council to confirm whether planning permission is actually needed, since meeting the permitted development size and location conditions doesn’t automatically rule out other requirements — building warrant approval (Scotland’s equivalent of building regulations approval), listed building consent, or conditions attached to the property itself can still apply even where planning permission specifically isn’t required.

FAQs

Does a conservatory in Scotland need a building warrant even if it doesn’t need planning permission?

Often yes — planning permission and building warrant approval are separate systems in Scotland, and a structure exempt from planning permission as permitted development can still require building warrant sign-off depending on its size and how it’s built.

Are the size limits the same for a bungalow as a two-storey house?

The core single-storey extension limits described above apply regardless of whether the existing house is a bungalow or has an upper floor, since the rules are based on the extension itself being single-storey, not the height of the original house.

What if my Scottish property already has a rear extension?

Ground area and garden coverage limits are cumulative, meaning a previous extension counts toward the limit for a new one — checking what’s already been added, not just what’s newly proposed, is essential before assuming a conservatory will qualify as permitted development.

Sources

This guide draws on the following primary sources, current as of 18 September 2026:

• mygov.scot: Add an extension to your house

Related guides

Compare Conservatories is an independent guide. We may earn a fee from some links; this never affects what we write. This article is general information, not legal or planning advice on any specific property — always confirm requirements directly with your local planning authority.

Before a single foundation is dug, it’s worth separating what your own buildings insurance covers from what your installer’s own insurance should be covering — because they’re protecting against different things.

The cover your installer should carry

A conservatory installer working on your property should be carrying, at minimum, public liability insurance and, if they employ anyone else, employers’ liability insurance. A well-run firm will typically also carry contract works (or contractors’ all-risk) insurance covering the partially built structure itself. These are three separate policies covering three separate risks — damage or injury to you and third parties, injury to the installer’s own staff, and damage to the unfinished conservatory — and a homeowner asking about “insurance” in general terms can easily end up being told about only one of the three.

Public liability, explained

Public liability insurance covers the installer’s legal costs and any compensation payable if a member of the public — including you, in your own home — is injured, or your property (beyond the conservatory itself) is damaged, as a result of their work. For domestic building work, cover of at least £1 million to £2 million is commonly seen, with some firms carrying £5 million or more for larger jobs. There’s no single legal minimum that applies to every trade the way there is for employers’ liability, so the level of cover genuinely varies between installers, which is exactly why it’s worth asking to see the figure rather than simply confirming that a policy exists.

Employers’ liability is a legal requirement, not optional

Unlike public liability, employers’ liability insurance is a statutory requirement in Great Britain under the Employers’ Liability (Compulsory Insurance) Act 1969, which requires that “every employer carrying on any business in Great Britain shall insure, and maintain insurance, under one or more approved policies with an authorised insurer or insurers against liability for bodily injury or disease sustained by his employees” and arising out of their employment. If your installer has any employees or subcontractors working under their direction on site, they are legally required to hold this cover, commonly at a minimum of £5 million, and operating without it can result in a fine. This is worth asking about specifically if the quote mentions subcontracted labourers or a second fitter, rather than just the named installer.

Contract works insurance: covering the build itself

Contract works insurance, sometimes called contractors’ all-risk cover, protects the conservatory itself while it’s under construction — the partially built frame, materials stored on site, and any temporary structures — against risks like fire, storm, flood, theft or accidental damage before the project is complete and handed over. This is distinct from your own buildings insurance, which is generally written around the finished, occupied property, and may not automatically extend to cover an open structure mid-build or materials left on site overnight. Asking whether the installer’s own policy or yours is expected to cover the works in progress, rather than assuming it’s covered somewhere, avoids a gap neither side realises exists until something goes wrong.

What to actually ask for before work starts

• A current certificate of insurance for public liability, showing the insurer’s name, the level of cover and the policy’s expiry date — not just a verbal assurance that they’re “fully insured.”
• Confirmation of employers’ liability cover if the installer uses any staff or subcontractors on your job, since this is the one that’s a hard legal requirement.
• Clarity on who is insuring the partially built structure and materials on site — the installer’s contract works policy, or an extension to your own buildings cover, agreed with your insurer in advance.
• A note in your diary to keep the certificate on file for the duration of the project, not just at the point of signing the contract, since cover can lapse or be cancelled after work has started.

FAQs

Is my own home insurance enough to cover the build?

Not necessarily on its own — your buildings insurer needs telling about significant structural work before it starts, and cover for the works in progress (as opposed to the finished conservatory) is often the installer’s contract works policy rather than your household policy. Check both sides rather than assuming either one has it covered.

What level of public liability cover should I look for?

There’s no single legally mandated figure, but £1–2 million is commonly seen for domestic projects, with £5 million not unusual for larger firms or bigger jobs. Ask for the specific figure on the certificate rather than accepting a general assurance.

Does a sole trader with no staff need employers’ liability insurance?

Generally not, if they genuinely have no employees, since the legal requirement is tied to having staff. If they bring in a subcontractor or a second person to help on your job, check whether that arrangement changes their obligations.

Sources

This guide draws on the following primary sources, current as of 17 September 2026:

• legislation.gov.uk: Employers’ Liability (Compulsory Insurance) Act 1969
• MoneySuperMarket: What insurance should a builder have?

Related guides

Compare Conservatories is an independent guide. We may earn a fee from some links; this never affects what we write. This article is general information, not insurance advice on any specific policy — always confirm cover directly with the installer’s insurer or your own broker.

The Minimum Energy Efficiency Standard doesn’t mention conservatories by name — but if you’re a landlord, adding one to a property you let can still interact with your EPC obligations in ways worth checking before you build.

What MEES actually requires

The Minimum Energy Efficiency Standard (MEES) applies to domestic private rented properties in England and Wales that are let on an assured tenancy, a regulated tenancy or a domestic agricultural tenancy, and that are legally required to have an Energy Performance Certificate (EPC). Since 1 April 2020, landlords have not been able to let or continue letting a covered property with an EPC rating of F or G unless a valid exemption is registered. In practical terms, this sets a minimum EPC band of E as the baseline a rental property must meet, or the landlord must be relying on one of a defined set of exemptions.

Does building a conservatory trigger a new EPC?

An EPC is generally required whenever a property is built, sold or let, and government guidance notes that a property which has been materially modified in the past 10 years typically needs a current EPC before it can be marketed or let again. A conservatory is exactly the kind of change — added floor area, new glazing, a different roof structure — that can be considered a material modification. If you’re a landlord adding a conservatory to a property that’s currently let or about to be re-let, it’s worth checking with an accredited energy assessor whether your existing EPC is still valid for the property as it will stand once the work is finished, rather than assuming an EPC issued before the conservatory remains usable indefinitely.

How a conservatory can affect the rating itself

A conservatory itself is often excluded from a property’s heated floor area for EPC assessment purposes if it isn’t thermally separated from the rest of the house and isn’t heated by the main system — in which case it may have limited direct effect on the rating. But the position changes if the conservatory is integrated into the home’s heating system, if it replaces double doors with a large area of glazing that increases heat loss from the connecting wall, or if the assessor treats it as habitable space with its own heating provision. Because the effect depends on how the conservatory is built and used, a landlord planning one shouldn’t assume the outcome either way, and should treat the EPC impact as a genuine unknown to check rather than a formality.

Exemptions and the cost cap

If a property is rated below E, government guidance describes six categories of exemption a landlord can potentially register, including where all relevant energy efficiency improvements have already been made, where the cheapest recommended measure would cost more than the £3,500 (including VAT) cost cap for self-funded improvements, or where a listed building or similar consent constraint would be breached. Third-party funding, such as certain grant schemes, doesn’t count towards this £3,500 cap. Registered exemptions last five years before they need reviewing again, so an exemption in place when a conservatory was added isn’t necessarily still valid at the next check.

Penalties for getting it wrong

• Local authorities enforce MEES and can issue penalty notices for letting a non-compliant property without a valid exemption.
• Non-compliance for under three months can attract a fine of up to £2,000; longer non-compliance can attract a fine of up to £4,000, with a maximum combined penalty of £5,000 per property.
• A conservatory that unexpectedly drags a property’s rating down, or that triggers a need for a new EPC a landlord wasn’t aware of, can leave a property technically non-compliant without the landlord realising until a check is made.
• Getting an up-to-date EPC assessment after any significant alteration, rather than relying on the certificate that predates the work, is the straightforward way to avoid this.

FAQs

Does MEES apply if I live in the house myself?

No — MEES specifically applies to properties let under qualifying tenancies in the private rented sector. An owner-occupied home isn’t subject to these letting restrictions, though a good EPC rating can still matter for other reasons, such as a future sale or mortgage terms.

Will adding a conservatory automatically lower my EPC rating?

Not automatically — it depends on whether the conservatory is thermally separated from the main heating system and how it’s assessed. Get a professional assessment rather than assuming either outcome.

What’s the cost cap if I need to improve my property’s rating?

Landlords self-funding improvements are not currently required to spend more than £3,500 including VAT to reach compliance, though this figure and the wider MEES rules can be updated by government, so check the current position before budgeting.

Sources

This guide draws on the following primary sources, current as of 17 September 2026:

• GOV.UK: Domestic private rented property, Minimum Energy Efficiency Standard – landlord guidance

Related guides

Compare Conservatories is an independent guide. We may earn a fee from some links; this never affects what we write. This article is general information, not energy assessment or legal advice on any specific property — always confirm with an accredited assessor or your local authority.

A householder planning application follows a defined statutory process — validation, neighbour consultation, a set decision period, and a specific appeal route if you’re refused — and knowing the stages helps you plan a realistic timeline rather than guessing.

What makes an application valid

Planning applications for house extensions and conservatories are submitted to the local planning authority, usually the district or borough council. For an application to be registered as valid, government guidance sets out that it needs a completed application form, a location plan showing the site in context, compliance with any locally published information requirements, and the correct fee. An incomplete or incorrectly specified application can be rejected at the validation stage before it’s even considered on its merits, which is one of the more common causes of delay — checking your council’s specific local validation checklist before submitting is worth the extra half hour it takes.

Who gets consulted, and how

Once validated, the council publicises the application, typically by writing to immediate neighbours and, depending on the authority, displaying a site notice or a notice in the local press. Neighbours and other interested parties are given a set period to submit comments, which the case officer takes into account alongside planning policy when reaching a recommendation. Objections about matters like loss of light, overlooking or overshadowing are treated as material planning considerations for a conservatory application; objections based purely on issues like disputed boundaries or a dislike of the applicant generally aren’t, though they’re still often raised.

How long a decision actually takes

Government guidance sets the statutory determination period at 8 weeks for most applications, extending to 13 or 16 weeks for larger or more complex development, or a different period if you and the council agree one in writing. In practice a straightforward householder conservatory application is usually decided within the 8-week window, but delays at validation, a request for further information, or a case officer’s workload can push this back. If the council simply fails to determine the application within the statutory period and no extension has been agreed, you gain the right to appeal on the grounds of non-determination, even though no decision has actually been made.

How the application is judged

The case officer assesses the proposal against the council’s local development plan policies and any relevant supplementary planning guidance, alongside the National Planning Policy Framework. For a conservatory, the issues that most commonly come up are the impact on neighbouring amenity (light, privacy and outlook), the visual impact on the character of the area, and, in some cases, drainage or flood risk. Applications are usually decided by an officer under delegated powers rather than going to a planning committee, unless the case is contentious, a councillor calls it in, or the authority’s scheme of delegation requires committee referral for that type of application.

If you’re refused: the appeal route

If your householder application is refused, you can appeal to the Planning Inspectorate, which is independent of the local council. GOV.UK guidance specifically names conservatories as an example of the “smaller project” category eligible for the householder appeals service, and you have up to 12 weeks from the date on the decision letter to lodge the appeal. Householder appeals are generally dealt with faster and more informally than major applications, typically through written representations rather than a hearing or public inquiry, with a planning inspector reviewing the case papers, the council’s reasons for refusal, and any objections before issuing a decision.

FAQs

Do I need planning permission for a conservatory at all?

Many conservatories are built under permitted development and don’t need a full application — this guide is specifically about the process for projects that fall outside those limits or where a full application is otherwise required, such as on a flat, in some conservation areas, or where an Article 4 Direction applies.

Can my neighbours stop my conservatory by objecting?

An objection alone doesn’t automatically block an application; the case officer weighs planning considerations raised in objections against policy, so a well-founded objection on a material planning matter carries more weight than a general complaint.

What happens if I miss the 12-week appeal deadline?

The Planning Inspectorate generally won’t accept a late householder appeal outside the 12-week window, so if you intend to appeal a refusal, treat the deadline as fixed rather than assuming an extension will be granted.

Sources

This guide draws on the following primary sources, current as of 17 September 2026:

• GOV.UK: Making an application (validation and statutory decision periods)
• GOV.UK: Appeal against a householder planning decision
• GOV.UK: How long you have to appeal a householder planning decision

Related guides

Compare Conservatories is an independent guide. We may earn a fee from some links; this never affects what we write. This article is general information, not legal advice on any specific application — always confirm current requirements with your local planning authority.

A Tree Preservation Order protects a specific tree, group of trees or woodland — and building work that affects its roots, canopy or growing conditions can need the council’s consent even if you’re not touching the tree itself.

What a TPO actually covers

A Tree Preservation Order (TPO) is made by a local planning authority under Part VIII of the Town and Country Planning Act 1990 and the Town and Country Planning (Tree Preservation) (England) Regulations 2012. Once an order is in place, it becomes an offence to cut down, top, lop, uproot, wilfully damage or wilfully destroy the protected tree without the council’s written consent. The order can cover a single tree, a group of trees, or a whole area of woodland, and it stays attached to the land rather than to whoever owned the property when it was made — so a TPO made decades ago still applies today, regardless of who’s planning the conservatory.

Why it matters for a conservatory, not just felling

Most homeowners assume a TPO only stops them cutting a tree down, and that building a conservatory nowhere near the trunk is unaffected. That’s not necessarily correct. “Wilful damage” under the regulations isn’t limited to chainsaw work — it can include anything that harms the tree’s roots, health or growing conditions, and excavating foundations, laying services, or changing ground levels within a protected tree’s root protection area can count. Because a conservatory’s base typically involves trench or raft foundations dug close to ground level, a badly sited design can bring the project directly into conflict with a TPO even though no branch is ever touched.

How to check before you design

Before finalising a conservatory design near any mature tree, it’s worth checking two things separately: whether a TPO exists on the tree at all, and, if one does, how close the protected root zone sits to your proposed footprint. Local authorities maintain records of TPOs affecting individual properties, and many publish interactive mapping tools or a register that can be searched by address. Don’t rely on visual assumptions about what looks old or significant — a TPO can cover a relatively young tree if the council judged it to have future amenity value, and conversely a large, established tree next to your garden might have no order on it at all.

Applying for consent to work near a protected tree

If a TPO does affect your plot, an application for consent is made to the local planning authority using a standard form, setting out which trees are affected, a description of the proposed works, and supporting evidence such as an arboricultural report where root protection is in question. Applications are checked for validity within a short administrative window, and the council will then assess the impact on the tree’s amenity value, whether the works are justified, and whether conditions — such as protective fencing during construction or a requirement to plant a replacement tree — should be attached. This process sits alongside, not instead of, any separate planning permission or permitted development check for the conservatory itself.

Conservation areas work differently

Trees in a conservation area can have a form of protection even without an individual TPO: anyone proposing work to a tree with a trunk over a certain diameter in a conservation area generally has to give the council six weeks’ written notice before doing anything, so the authority has the opportunity to consider making a TPO if it judges the tree worth protecting. If your conservatory site is both in a conservation area and near a mature tree, it’s worth treating that six-week notice period as part of your project timeline rather than an afterthought, since starting groundworks before the notice period has run can create the same problems as ignoring an existing TPO.

What happens if you don’t check first

• Damaging or destroying a tree protected by a TPO without consent is a criminal offence, and courts can impose an unlimited fine depending on the severity of the harm and any financial benefit gained from the work.
• Beyond the immediate penalty, the council can require a replacement tree to be planted, and can specify the species and size, which may not suit the garden layout you had in mind.
• A conservatory built in a way that damaged a protected tree’s roots can also leave a legacy problem if the tree later dies or becomes unstable, since root damage often takes years to show above ground.
• Raising it with the council before you design, rather than after a problem is spotted, is consistently the cheaper and less stressful route.

FAQs

Does a TPO stop me building a conservatory near a protected tree altogether?

Not necessarily — it means you need to check the impact on the tree’s roots and growing conditions and, in many cases, seek consent or advice before finalising the design, rather than being automatically barred from building nearby.

How do I find out if a tree on or near my property has a TPO?

Contact your local planning authority’s tree or planning department, or check their online TPO register or interactive map if they publish one, and search by address rather than assuming based on the tree’s appearance.

Does the six-week notice for conservation area trees apply to all trees?

It generally applies to trees above a certain trunk diameter that aren’t already covered by a TPO; very young or small trees may fall outside it, but check the specific threshold with your council rather than assuming.

Sources

This guide draws on the following primary sources, current as of 17 September 2026:

• GOV.UK: Tree Preservation Orders and trees in conservation areas
• legislation.gov.uk: The Town and Country Planning (Tree Preservation) (England) Regulations 2012

Related guides

Compare Conservatories is an independent guide. We may earn a fee from some links; this never affects what we write. This article is general information, not legal advice on any specific property — always confirm with your local planning authority or a qualified arboriculturist.

Permitted development rights for a conservatory don’t just depend on its own size — they also depend on how much of your garden is already covered by buildings, because the total coverage of the plot is capped at 50%.

What the 50% rule actually says

Permitted development for house extensions and conservatories sits under Class A of Part 1, Schedule 2 of the Town and Country Planning (General Permitted Development) (England) Order 2015. One of the specific conditions in Class A is that development isn’t permitted if the total area of ground covered by buildings within the curtilage of the house (other than the original house itself) would exceed 50% of the total area of the curtilage, excluding the ground area of the original house. In plain terms: once buildings other than the original house cover more than half your garden’s total area, permitted development rights for further building work stop applying, and planning permission is needed instead.

What counts toward the 50% limit

The calculation covers rear and side extensions, conservatories, garages (whether attached or detached), garden rooms, sheds, greenhouses, workshops and summer houses, and essentially any other roofed structure within the curtilage. It doesn’t include the original house’s own footprint, and it generally doesn’t include things like patios, driveways, hard standing, fences, walls, or open-sided structures without a solid roof. This means the 50% figure is specifically about roofed buildings occupying garden space, not about how much of the garden is paved, decked, or otherwise hard-landscaped.

Why a previous owner’s extensions still matter

This is the detail that catches people out most often when planning a new conservatory: the 50% allowance doesn’t reset when a property changes hands. Every extension, shed, garage, garden room or other roofed structure built on the plot since the original house was constructed (or since 1 July 1948, if the house predates that) counts toward the running total, regardless of who built it. If you’ve bought a house where a previous owner already added a large extension and a substantial garden room, you may have considerably less headroom left under the 50% limit than the size of your own garden might suggest at first glance.

How to actually check your position before designing

Working this out accurately means measuring the total curtilage area, then adding up the footprint of every existing roofed structure other than the original house, and comparing that total against 50% of the curtilage. Because “curtilage” itself has a specific legal meaning (broadly, the enclosed land forming part of and used in connection with the house, not necessarily the entire plot boundary as marked on a map) it’s worth getting this calculation checked, either through a pre-application enquiry with the local planning authority or via a professional, rather than estimating it visually before committing to a conservatory design.

Why “the original house” isn’t necessarily the house as it stands today

The 50% calculation excludes the “original dwellinghouse” from the coverage figure — but that term has a specific, technical meaning: it refers to the house as it was first built, or as it stood on 1 July 1948 if it was already in existence by then, not the house as it currently stands after any previous extensions. This matters because a house that’s already had a large extension added under permitted development doesn’t get to treat that extension as part of the “original” house for the purposes of a later project — the extension itself counts as additional coverage, on top of the genuinely original footprint, when working out how much of the 50% allowance remains.

What happens if a project would exceed it

• If a proposed conservatory would push total coverage over 50%, permitted development rights simply don’t apply to that specific project, regardless of the conservatory’s own size or design otherwise fitting other permitted development limits.
• This doesn’t mean the conservatory can’t be built — it means a full planning application is needed instead, where the council will assess the proposal on its individual merits rather than it being automatically allowed.
• Building without permission where the 50% limit has genuinely been exceeded means the works aren’t lawful permitted development, which can create real problems later, particularly when selling the property.
• A Lawful Development Certificate can be a useful way to get written confirmation from the council that a specific proposal does fall within permitted development limits, including the 50% rule, before work starts — providing certainty rather than relying on your own calculation alone.

FAQs

Does a garden shed count toward the 50% limit?

Yes — sheds, greenhouses, workshops and similar roofed outbuildings all count toward the total, alongside extensions, conservatories and garages, when calculating whether the 50% coverage limit has been reached.

Does a patio or decking count toward the 50% rule?

Generally no — the rule is specifically about roofed buildings covering the curtilage, not hard landscaping like patios, decking (below a certain height) or driveways, which are treated separately under permitted development rules.

How do I find out how much of my garden is already covered?

You’ll need to measure the curtilage and the footprint of every existing roofed structure, or ask a planning professional to do this for you — some local authorities can also advise on this as part of a pre-application enquiry before you commit to a conservatory design.

Sources

This guide draws on the following primary sources, current as of 17 September 2026:

• legislation.gov.uk: Town and Country Planning (General Permitted Development) (England) Order 2015, Schedule 2, Part 1
• PD Assessment: The 50% curtilage rule — what counts and how to calculate it

Related guides

Compare Conservatories is an independent guide. We may earn a fee from some links; this never affects what we write. This article is general information, not legal advice on any specific property — always confirm with your solicitor.