Do solar panels need planning permission?
For most homes, no. Panels on a roof are permitted development across all four nations, so long as they sit close to the slope and stay below the ridge. The exceptions are short, specific, and worth checking before you take a quote.
Usually not
Roof-mounted panels on a house are permitted development. You need an application if the property is listed, if the panels would go on an elevation fronting a highway inside a conservation area, if the array stands proud of the roof or above the ridge, or if it is going in the garden rather than on the roof.
Flats are a separate question, and usually a leasehold one before it is a planning one.
Roof-mounted panels
Permitted
On a house, in all four nations, within the order's limits
Conservation areas in England
10,114
Reported by 295 of 296 authorities
Applications approved
87%
England, year ending March 2026. Every kind of development
Listed buildings
Consent needed
Separate from planning, and refused far more often
Conservation area counts come from the Planning Data platform, which covers England: an authority reporting none has usually published none rather than having none. Listed buildings are held nationally with no authority against them, so we can't count them by council and don't pretend to.
The answer
What permitted development actually covers
Permitted development is not an exemption from the rules — it is a planning permission granted in advance, with conditions. Meet the conditions and no application is needed. Miss one and the whole right falls away.
Roof-mounted solar panels
Usually permitted
So long as
- Panels sit close to the roof slope rather than standing off it on a frame
- Nothing projects above the highest part of the roof, chimneys aside
- The array is sited to reduce its effect on the appearance of the building
- Equipment is taken down when it is no longer needed for generation
Not if
- Listed buildings, which need listed building consent whatever the planning position
- A wall or roof slope fronting a highway inside a conservation area or World Heritage Site
- Flats and maisonettes in several nations, where the rights attach to a house
- Scheduled monuments, and land where an article 4 direction has removed the right
Ground-mounted solar panels
Depends on the property
So long as
- One standalone array in the garden, not a field of them
- Height and footprint inside the limits the order sets
- Set back from the boundary by the distance the order requires
- Not in front of the principal elevation where that elevation faces a highway
Not if
- Anything visible from the highway in a conservation area
- A second standalone array, which needs an application even if the first did not
- Land inside the curtilage of a listed building
Get a lawful development certificate anyway
If the work is permitted development you can ask the council to confirm it in writing. It costs a fraction of a full application, and it is the document a buyer's conveyancer asks for in five years' time — by which point the installer may not exist and the roof certainly won't remember.
The exceptions
Conservation areas are where solar applications come from
The rule is not that panels are banned in a conservation area. It is that the right does not extend to a wall or roof slope fronting a highway — so the same house can fit panels on the back without asking, and needs permission for the front.
Authorities with the most conservation areas
England, from the Planning Data platform.
- Dorset311
- North Yorkshire248
- Wiltshire245
- Buckinghamshire186
- Somerset178
- Cornwall145
- Cotswold144
- East Riding of Yorkshire126
- Shropshire121
- West Northamptonshire118
A count of designations, not of the homes inside them. A borough with fifty small conservation areas may constrain fewer houses than one with five large ones.
Listed buildings
Listed building consent is a separate permission from planning, and permitted development rights do not touch it. Panels on a listed roof are possible — usually on a rear slope, out of public view, sometimes only in a colour and frame the conservation officer will accept — but the conversation starts with the officer, not with an installer.
Article 4 directions
A council can remove permitted development rights from an area with an article 4 direction. They are common in Victorian and Edwardian suburbs, they do not show up on a map of conservation areas, and they are the reason to check with the authority rather than with a rule of thumb.
Four nations
The same shape of rule, written four times
Planning is devolved, so each nation has its own order. For roof-mounted domestic solar the answer is the same in all four; the detail around ground-mounted arrays, flats and protected areas is where they part company.
England
Solar and heat pumps sit in Part 14 of Schedule 2. Domestic heat pump rights were widened in 2024: the requirement to sit a unit a metre from the boundary went, and the size limit rose. Conservation area frontages and listed buildings are still the two things that take a project out of permitted development.
Town and Country Planning (General Permitted Development) (England) Order 2015
Wales
Wales runs the same shape of order with its own amendments, and is marginally more generous for domestic solar than England. National Parks cover a larger share of Wales than of England, and rights are narrower inside them.
Town and Country Planning (General Permitted Development) Order 1995, as it applies in Wales
Scotland
Scotland's rights were widened for both solar and heat pumps, which is why a large share of domestic energy work here never reaches an application at all. Conservation areas and listed buildings remain the exceptions, and Scotland lists more buildings per head than the rest of the UK.
Town and Country Planning (General Permitted Development) (Scotland) Order 1992, as amended
Northern Ireland
Northern Ireland has its own planning system and eleven councils, each its own planning authority. The renewables rights are in their own part of the order and are narrower than Great Britain's in places, particularly for heat pumps on or near a boundary.
Planning (General Permitted Development) Order (Northern Ireland) 2015
If you apply
What the statistics can and cannot tell you
Every nation publishes how many applications it decided and how many it granted. None of them record what was being installed, so there is no published approval rate for solar panels anywhere in the UK — and anyone quoting one has made it up.
Where this page's answers come from
- MHCLG — planning applications in England, live tables
- Welsh Government — development management quarterly survey
- Scottish Government — planning performance statistics
- Department for Infrastructure — Northern Ireland planning statistics
- Planning Data platform — conservation areas by local planning authority
- The permitted development order for each of the four nations
Last checked against these sources on 17 September 2026.
What is published
87% of all planning applications decided by English authorities in year ending March 2026 were granted, across every kind of development from a porch to a power station. Householder work is approved more often than that average, not less. The other three nations publish over different periods, which the planning guide compares.
What is not
Which applications were for solar, why any of them were refused, and how many installations went ahead as permitted development without ever appearing in a statistic. The last of those is most of them.
Your own authority
The area pages carry each authority's approval rate, decision times and conservation area count, and the planning guide covers heat pumps, charge points and insulation alongside solar.
Questions
Common questions about solar and planning
Do solar panels need planning permission in the UK?
Usually not. Panels on the roof of a house are permitted development in all four nations, provided they do not protrude far beyond the roof slope, do not rise above the highest part of the roof and are sited to limit their effect on the building's appearance. An application is needed for a listed building, for an elevation fronting a highway in a conservation area, and generally for anything ground-mounted beyond the limits in the order.
Can I put solar panels on a listed building?
Sometimes, but you need listed building consent, which is a separate permission from planning and is judged on the effect on the building's special interest. Rear slopes out of public view are where consent is most often given. Start with the council's conservation officer rather than with an installer's quote.
What about a conservation area?
Panels are permitted development in a conservation area except on a wall or roof slope fronting a highway. English authorities report 10,114 conservation areas between them, and the restriction bites on the front of the house rather than the whole property — a rear roof slope is usually unaffected.
Do ground-mounted panels need permission?
More often than roof ones. A single standalone array within the limits the order sets — height, footprint, distance from the boundary, not in front of the principal elevation — is permitted development. A second array is not, whatever size it is, and in a conservation area anything visible from the highway needs an application.
Do I need permission for solar panels on a flat?
The permitted development rights for solar attach to a dwellinghouse, and a flat is not one. In practice the question is settled by the lease and the freeholder long before planning gets involved, since the roof is rarely yours.
Does the DNO have to agree as well?
Yes, and it is a separate process from planning. Arrays up to a certain size are notified to the network operator after installation; larger ones need permission before. Your installer handles it, but it is worth asking which route your system falls under, because the answer occasionally caps the size you can fit.
Once the planning question is settled, the ones that decide whether to fit panels at all are on the solar guide and the payback page.
Is your address in a conservation area?
Conservation area, listed status and National Park boundary are all recorded against the property. Checking takes minutes and decides the whole question.