Can You Put Solar Panels in a Conservation Area?

 

Yes.

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Simply living in a conservation area does not mean that solar panels are prohibited or that planning permission will automatically be required.

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In many cases, solar panels installed on the roof of a house can qualify as permitted development, meaning that a conventional planning application is unnecessary. Richmond Council's current guidance, for example, confirms that homes can in many circumstances install solar panels in conservation areas under permitted development rights.

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There are nevertheless conditions governing the size and position of the installation.

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For a typical pitched roof, solar panels should:

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• Project no more than 200mm from the roof slope.

• Not extend above the highest part of the roof, excluding the chimney.

• Be positioned, as far as reasonably practicable, to minimise their effect on the appearance of the building and surrounding area.

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This means that a relatively discreet panel installation following the slope of an existing roof is often much easier from a planning perspective than people expect.

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Do Solar Panels in a Conservation Area Need Planning Permission?

 

Not necessarily.

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This is probably the biggest misconception surrounding conservation area solar panels.

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Conservation areas are designated because of their special architectural or historic character, but this does not mean every alteration to every building requires a planning application.

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Permitted development rights continue to apply to many forms of solar installation, although there are additional controls in designated areas.

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Whether planning permission is required will depend primarily on:

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• Where the panels are installed.

• Whether the roof is pitched or flat.

• How far the panels project.

• Whether the installation is roof-mounted, wall-mounted or ground-mounted.

• Whether the property is listed.

• Whether it is within the curtilage of a listed building.

• Whether any relevant local restrictions affect permitted development rights.

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It is therefore worth checking the planning position before ordering or installing the panels.

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Solar Panels on a Pitched Roof in a Conservation Area

 

For many homes, a pitched-roof installation will be the simplest solution.

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Solar panels fitted relatively flush with the roof can normally remain within the permitted development limits provided they do not project more than 200mm from the roof surface and do not extend above the highest part of the roof, excluding the chimney.

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Importantly, current guidance confirms that being within a conservation area does not by itself prevent roof-mounted panels from qualifying as permitted development.

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This opens up solar to a large number of older properties and traditional homes that might previously have been assumed to be unsuitable.

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However, permitted development also carries a condition requiring solar equipment to be located, so far as practicable, to minimise its effect on the external appearance of the building and the amenity of the area.

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Design still matters.

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What if the Solar Panels Face the Road?

 

This is an important distinction.

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A roof facing the highway is not automatically the same as a wall facing the highway.

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Current conservation-area restrictions specifically prevent permitted development rights being used for solar equipment installed on a wall which fronts a highway.

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Roof-mounted panels can have a different planning position.

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That means homeowners should not automatically conclude that solar panels cannot be installed simply because the most suitable roof slope can be seen from the street.

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Nevertheless, visibility can still be relevant when considering the requirement to minimise the visual impact of the installation.

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Where several equally effective roof locations are available, a less prominent position may therefore be preferable.

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Designing Solar Panels for a Conservation Area

 

A good solar installation on a traditional property should consider more than simply how many panels can physically fit on the roof.

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Layout can make a considerable difference.

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An organised rectangular array can often look significantly better than panels scattered around rooflights, chimneys and other features.

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Useful design principles include:

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• Keeping panels together in a simple arrangement.

• Maintaining consistent spacing.

• Keeping reasonably even margins around the roof.

• Avoiding unnecessary projections.

• Concealing cabling where practical.

• Positioning panels behind parapets or architectural features where this does not compromise performance.

• Choosing the least visually intrusive suitable roof slope where alternatives exist.

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Richmond Council's conservation guidance specifically recommends considering balanced spacing, roof margins, visibility, cabling and alternative roof positions when trying to minimise visual impact.

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There is therefore a useful overlap between good solar design and good conservation design.

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Flat Roof Solar Panels in Conservation Areas

 

Flat roofs need particular attention.

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Unlike panels installed against a pitched roof, flat-roof solar panels are normally mounted on frames that angle the modules towards the sun.

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Under the domestic permitted development rules, the highest part of the solar equipment on a flat roof must not extend more than 600mm above the highest part of the roof, excluding the chimney.

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But there is an additional requirement where the flat roof is on designated land including a conservation area.

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In these circumstances, prior approval from the local planning authority is required for the flat-roof installation.

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This is an important distinction.

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Prior approval is not necessarily the same thing as applying for full householder planning permission. It is a procedure allowing the council to consider specified planning matters before the permitted development right is exercised.

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If you are considering flat-roof solar panels in a conservation area, establish the planning route before the installation is commissioned.

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What Is Prior Approval for Solar Panels?

 

Prior approval sits between unrestricted permitted development and a conventional planning application.

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Certain forms of development are permitted in principle, but the local planning authority is given the opportunity to consider specific aspects of the proposal.

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For solar installations, this is particularly relevant to flat-roof panels on Article 2(3) land, which includes conservation areas. Current Planning Portal and local-authority guidance confirm that these installations can require a prior approval application.

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Your installer or planning adviser should therefore identify whether prior approval is needed before work begins.

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Ground-Mounted Solar Panels in a Conservation Area

 

Some properties have enough land to consider putting solar panels in the garden instead of on the building.

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Small domestic ground-mounted solar installations can benefit from permitted development rights, although there are tighter limits.

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The normal requirements include:

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• Only the first stand-alone solar installation benefiting from the right.

• A maximum height of 4 metres.

• At least 5 metres between the installation and the property boundary.

• An array no larger than 9m², or 3 metres by 3 metres.

• No installation within the curtilage of a listed building or scheduled monument.

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There is also a specific conservation-area requirement.

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Where stand-alone solar equipment would be installed closer to the highway than the nearest part of the house or flats, prior approval must be obtained from the local planning authority, and the installation must not exceed 2 metres in height.

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For properties with substantial gardens, therefore, both roof-mounted and ground-mounted solar may be worth investigating.

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Solar Panels and Listed Buildings

 

A listed building and a building in a conservation area are not the same thing.

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This distinction is extremely important.

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A conservation area protects the special character and appearance of a wider area. A listed building is individually protected because of its particular architectural or historic interest.

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Solar panels proposed for a listed building therefore require considerably more careful consideration.

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Current local-authority guidance confirms that installations on listed buildings can require both planning permission and Listed Building Consent, and the domestic permitted development provisions also contain restrictions relating to buildings within the curtilage of listed buildings.

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So if your property is listed, do not rely simply upon general information about solar panels in conservation areas.

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Check the listed-building position separately before installing anything.

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Solar Panels Within the Curtilage of a Listed Building

 

The issue does not necessarily end with the listed building itself.

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A garage, coach house, outbuilding or other structure may sit within the curtilage of a listed building, and this can affect whether the normal solar permitted development rights are available.

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The Planning Portal specifically states that panels must not be installed under the domestic solar permitted development right on a building within the grounds of a listed building.

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This is particularly relevant to larger historic properties where homeowners might otherwise consider moving the panels from the main house onto a garage or ancillary building.

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The planning and heritage status should be checked before deciding where the array will go.

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What About Article 4 Directions?

 

Some conservation areas are subject to an Article 4 Direction.

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An Article 4 Direction allows a local authority to remove particular permitted development rights where additional control is considered necessary to protect the character of an area.

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The important point is that Article 4 Directions are local and specific. You should therefore check exactly what the Direction applying to your particular property controls rather than assuming that all permitted development rights have disappeared.

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For example, Richmond Council notes that some of its conservation areas have Article 4 Directions but that its existing directions do not remove the relevant solar-panel permitted development rights.

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Other areas and directions can differ.

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Your local authority's planning records should therefore be checked when there is an Article 4 Direction affecting the property.

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Can a Council Refuse Solar Panels in a Conservation Area?

 

Where an installation genuinely complies with permitted development rights, a normal planning application may not be required.

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Where planning permission or prior approval is required, however, the local authority can assess the proposal against the relevant planning policies and requirements.

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For a conservation-area property, particular attention is likely to be given to how the installation affects the character and appearance of the building and surrounding area.

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This makes the design of the array important.

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A carefully positioned, orderly installation which respects the form of the roof is likely to present a very different planning proposition from a large or irregular arrangement dominating an important historic elevation.

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Should Solar Panels Be Hidden From View?

 

Not necessarily.

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There is no general rule saying that roof-mounted solar panels in a conservation area must be completely invisible.

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The requirement is instead to site the equipment, so far as practicable, to minimise its effect on the appearance of the building and the amenity of the area.

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Solar performance also matters.

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Moving panels onto a heavily shaded or poorly orientated roof merely to conceal them could substantially reduce the effectiveness of the system.

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The sensible approach is therefore to balance energy generation with visual impact.

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Can You Get Confirmation That Solar Panels Are Permitted Development?

 

Yes.

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Where the planning position is important or uncertain, a homeowner can consider applying to the local planning authority for a Lawful Development Certificate confirming that the proposed installation is lawful and does not require planning permission.

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Richmond Council, for example, specifically identifies a Lawful Development Certificate as a way of obtaining formal confirmation that a proposed solar installation complies with permitted development limitations and conditions.

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This can provide useful certainty, particularly for a property in a sensitive location.

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Installing Solar Panels in a Conservation Area

 

Before installing panels, it makes sense to work through the project in the right order.

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First establish:

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• Whether the property is actually within a conservation area.

• Whether the building is listed.

• Whether it lies within the curtilage of a listed building.

• Whether an Article 4 Direction applies.

• Whether the proposed panels satisfy the permitted development dimensions.

• Whether the installation is on a pitched or flat roof.

• Whether prior approval is required.

• How prominently the panels will be seen from public areas.

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Then develop the solar layout.

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Doing this before committing to equipment can avoid the need to redesign the system later.

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Are Conservation Areas Suitable for Solar Panels?

 

Absolutely.

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Conservation areas contain thousands of homes capable of generating renewable electricity.

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The objective of conservation-area designation is not to prevent properties from evolving. It is to manage change in a way that preserves or enhances the architectural and historic character that makes the area special.

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Modern solar technology can frequently be incorporated successfully into older properties, particularly where the panel arrangement has been considered carefully.

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The planning system increasingly recognises the need to balance heritage protection with energy efficiency and renewable energy generation, while still requiring sensitive design.

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Solar Panels in Conservation Areas – FAQs

 

Do I need planning permission for solar panels in a conservation area?

Not always. Many domestic pitched-roof solar installations in conservation areas can qualify as permitted development where the relevant limits and conditions are satisfied.

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Can I put solar panels on the front roof of my house in a conservation area?

Potentially, yes. Current national restrictions specifically prevent solar equipment being installed under permitted development on a wall fronting a highway in a conservation area; a roof slope is treated differently. All other permitted development conditions must still be satisfied.

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How far can solar panels project from a pitched roof?

For the domestic permitted development right, panels should generally project no more than 200mm from the roof slope and should not extend above the highest part of the roof, excluding the chimney.

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Can I put solar panels on a flat roof in a conservation area?

Yes, potentially. The panels must comply with the dimensional limits, including the 600mm maximum projection above the highest part of the roof, but a flat-roof installation in a conservation area can require prior approval from the local planning authority.

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Can I install solar panels in the garden of a conservation-area property?

Potentially. Small stand-alone installations can qualify as permitted development subject to size, height, boundary and positioning restrictions. Prior approval is required in certain conservation-area locations close to a highway.

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Do listed buildings have different solar-panel rules?

Yes. Listed buildings have considerably stronger protection. Planning permission and Listed Building Consent may be required, and normal solar permitted development rights should not simply be assumed.

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Does an Article 4 Direction stop me installing solar panels?

Not automatically. Article 4 Directions remove specified permitted development rights rather than every right. The particular Direction applying to the property needs to be checked.

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Thinking About Solar Panels in a Conservation Area?

 

Living in a conservation area does not mean giving up the opportunity to generate your own renewable electricity.

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In many circumstances, solar panels in a conservation area can be installed under permitted development rights, particularly where panels are fitted neatly to a conventional pitched roof. Flat roofs, ground-mounted systems, listed buildings and certain sensitive locations need additional consideration.

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The key is to understand the planning position before choosing the final installation.

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APN Solar can help you explore solar options for your property and find experienced solar installers working in your area.

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