Heritage Consultancy Services · Solar

Solar panels on listed buildings.

Solar panels on a listed building need listed building consent, and since 27 August 2026 the planning permission route has tightened too. We prepare the heritage case that gets well-sited, well-designed installations consented.

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Solar on a listed building is not impossible. It is a question of evidence. Applications succeed when they show what is significant, where the panels go, how little they change the building and how they can be removed. We prepare that case, working alongside your installer or architect, and put it to the conservation officer.

We recently secured consent for solar panels on a Grade II listed building in Sevenoaks, on a scheme that had been assumed to be unconsentable.

When you need consent

When solar on a listed building needs consent.

1.

Roof and wall-mounted panels

Panels on a listed building, or on a building within its curtilage, need listed building consent. Since 27 August 2026, solar equipment on a listed dwelling or block of flats is also no longer permitted development, so planning permission is needed as well, subject to a transitional period.

2.

Ground-mounted arrays

Arrays within the curtilage of a listed building remain outside permitted development altogether. The heritage case has to address the setting of the building as well as its fabric, and siting, height and screening all matter.

3.

Plug-in and balcony solar

Plug-in solar kits are now caught by the same restrictions, even though no installer is involved. On a listed building they need permission, and they cannot be fixed to timber walls, balconies, cladding or fences.

What’s in the package

Heritage advice for your solar installation.

1.

Pre-application heritage advice

Before you commission a design, we tell you whether solar is likely to be acceptable on your building, where on the roof or site it could go, and what the conservation officer will be looking for. It saves redesign cost.

2.

Heritage impact assessment

The supporting document for your listed building consent application. It sets out the significance of the building, the proposed installation, the effect on its character and setting, and how harm is avoided or minimised.

3.

Siting and product advice

We work with your installer or architect on panel position, array layout, in-roof and solar slate alternatives, colour and finish, and reversible fixings, so the design reflects what consent officers respond to.

4.

Consent route and liaison

We work out which consents you need, prepare and submit the listed building consent application, and coordinate a planning application where one is also required. We handle the conversation with the conservation officer.

What to expect

From instruction to submission.

i.

Typical residential application

For a typical residential listed building application, we work to a three to four week timeline from instruction to submission. Site visit and research first, draft and refinement, then delivery alongside the application package.

ii.

Larger or complex projects

Larger arrays, ground-mounted schemes, or a Grade I or Grade II* building sit in the four to six week range. We agree the timeline at the outset.

The council’s determination period is separate. Tell us what you’re working to and we’ll tell you what’s realistic.

The obstacle is very rarely the principle of renewable energy. It is the quality of the analysis behind the application.

Recent work

Solar on a Grade II listed building.

Project image: solar panels, Grade II listed building, Sevenoaks

Grade II Sevenoaks, Kent Solar panels

Solar panels on a Grade II listed building

A scheme assumed to be unconsentable, consented.

Heritage Unlimited prepared the heritage case for solar panels on a Grade II listed building in Sevenoaks, Kent. The scheme had been assumed to be unconsentable. A well-evidenced application, built on an analysis of significance, siting, reversibility and visual impact, secured consent.

Read the case study →

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Grade I Grade II* Grade II All projects Residential Historic estates

Common questions

Solar panels on listed buildings FAQs.

Can I put solar panels on a listed building?

In many cases yes. You will need listed building consent and a clear heritage case. Acceptability depends on the significance of the building, where the panels go, how visible they are and whether they can be removed without harm. Well-evidenced applications succeed, including on schemes that had been assumed to be unconsentable.

Do I need planning permission as well as listed building consent?

Since 27 August 2026, solar equipment on a listed dwelling or block of flats is no longer permitted development, so planning permission is needed in addition to listed building consent. A transitional period runs to the end of 26 August 2027 for development that was permitted immediately before the change. Listed building consent is required in every case, and we check the position for your building. We explain the change in full in solar panels on listed buildings: the 2026 rule change.

Can I have ground-mounted solar in the garden of a listed building?

Arrays within the curtilage of a listed building remain outside permitted development, so you will need planning permission, and depending on the siting, listed building consent may be needed too. The heritage case has to address the setting of the building. Siting, height, screening and visibility all matter.

What about solar panels in a conservation area?

The rules were tightened on 27 August 2026. In a conservation area, equipment on a wall, balcony enclosure or roof enclosure that fronts a highway is not permitted development for a dwellinghouse, and some garden arrays now need prior approval from the council. Away from the highway there is a little more latitude. We advise on the right route for your property.

Do plug-in or balcony solar kits need permission?

Plug-in solar is now treated as solar PV under the same rules, so the restrictions apply to it. On a listed building it needs permission. It also cannot be installed on a timber wall, balcony or enclosure, or a timber-clad part of a building, or fixed to a wooden fence or gate.

Are in-roof panels or solar slates more acceptable?

Often, yes. Modern in-roof and solar slate products can be acceptable where surface-mounted panels are not, particularly on more visible roof slopes. The right choice depends on the building, and we advise on siting and product as part of the heritage case.

Get in touch

Tell us about the building. We’ll tell you what’s involved.

Most enquiries get a written outline approach within 24 hours. Working in London? Meet our heritage consultants in London.

Speak To Our Team Or call our team on 0330 0880 984

What to send

To get a fast outline approach, share:

The address of the building and its listing grade
Where the panels would go: roof slope, wall or garden
Whether you already have an installer or a design
Your role: owner, developer, architect, or public body