You can often put solar panels on a block of flats, but you usually cannot decide it alone. In England and Scotland rooftop solar on a block of flats can be permitted development, in Wales and Northern Ireland flats get no such right, and in every nation the roof is normally owned or managed in common, so the freeholder or the other owners have to agree before an installer can quote.
This guide covers the planning rules for flats in each UK nation, who has to say yes, how a shared system works, and what to do if a rooftop array is not possible. Everything was checked on 10 October 2026 against legislation.gov.uk, gov.scot, gov.wales, the Leasehold Advisory Service and gov.uk.
The planning rules for flats, by nation
England and Scotland give flats a permitted development right for solar. Wales and Northern Ireland do not. The table summarises the position for rooftop or wall panels on a building that is not listed.
| Nation | Permitted development for flats? | Main limits |
|---|---|---|
| England | Yes, on a "block of flats" | 0.2m from a wall or pitched roof, not above the highest part of the roof, 0.6m above a flat roof |
| Scotland | Yes, Class 6HA covers flats | Up to 1m protrusion; conservation areas rear or non-road side only |
| Wales | No, houses only | Welsh Government tells flat occupiers to contact the council |
| Northern Ireland | No right we can find | The domestic class excludes flats, and so does the non-domestic one |
England: Class A of Part 14 of the General Permitted Development Order covers solar on a block of flats as well as on a house. England rewrote Class A on 27 August 2026 (SI 2026/896), but the government's Explanatory Memorandum says the rules for blocks of flats stayed largely unchanged: the new 0.4m wall and balcony limit applies to houses only. On a block of flats the panels must not protrude more than 0.2m from a wall or pitched roof slope, must not rise above the highest part of a pitched roof (chimneys excluded), and must not stand more than 0.6m above the highest part of a flat roof. The Order defines a block of flats as a building made up entirely of flats, so a flat above a shop does not appear to qualify; ask the council before relying on Class A there. A flat roof on article 2(3) land, such as a conservation area, needs a prior approval application about appearance first. Our guide to permitted development for solar panels has the house rules alongside.
Scotland: Class 6HA, explained in Planning Circular 1/2024, gives permitted development rights for solar "on a dwelling", and the Circular defines a dwelling for these classes so that it includes flats. Panels may protrude up to 1m. They are not permitted on a listed building, within its curtilage or in a World Heritage Site, and in a conservation area they must go on a rear elevation or on a side elevation that does not front a road. That is why a tenement in Glasgow can often have panels without a planning application, while one in Edinburgh's New Town cannot.
Wales: the Welsh Government's guidance on solar panels says permitted development for roof and wall panels applies to houses, and tells anyone living in a flat to contact their local planning authority. Expect to need a planning application.
Northern Ireland: the domestic solar class covers the roof of a "dwellinghouse", and the Northern Ireland order defines a dwellinghouse as excluding flats. The separate non-domestic class excludes blocks of flats too. Read together, flats in Northern Ireland appear to have no solar permitted development right. That is our reading of the legislation rather than a published government statement, so check with the council.
Who has to agree in England: the lease and the freeholder
If you own a leasehold flat in England, you will almost certainly need the freeholder's consent, and for a roof installation the freeholder can refuse without giving a reason. The Leasehold Advisory Service (LEASE) explains that a leaseholder may need the landlord's permission for alterations depending on the lease, even when planning permission is not needed. The roof and external walls are usually "retained premises" owned by the landlord, and where works affect retained premises the landlord does not have to act reasonably or give reasons when refusing.
Consent can also cost money. LEASE says a landlord may charge a premium for works affecting parts of the building it owns, that there is no legal cap on it, and that it cannot be challenged at a tribunal. Where the lease allows, the landlord can also charge reasonable consent fees, for example for a surveyor. Skip the consent and the risk lands on you later: an alteration made without consent the lease requires can be a breach, even if a previous owner made it, and can make the flat harder to sell, remortgage or insure.
In practice, rooftop solar on a block is usually a building-wide project led by the freeholder, a residents' management company or a right-to-manage company, not an individual flat. If you are a share-of-freehold owner, raise it at the company level.
Who has to agree in a Scottish tenement
In a Scottish tenement, unless the title deeds say otherwise, the top-floor flat owns the roof over it, but the roof is still managed in common, and an improvement such as a new solar array generally needs every owner to agree. Section 2(3) of the Tenements (Scotland) Act 2004 gives the roof to the top flat by default. The Tenement Management Scheme, which applies where the deeds are silent, treats the roof as "scheme property" managed jointly. Under One Roof, the Scottish tenement advice charity, explains that maintenance decisions need a simple majority, one vote per flat, while improvements need all owners to agree. A shared rooftop array is likely to count as an improvement rather than maintenance, so expect to need everyone on board.
Flats are the norm in Scotland's two biggest cities: more than two-thirds of Glasgow adults (68.6%) live in flats. See solar panels in Glasgow and solar panels in Edinburgh for the local planning picture.
How a shared system on a block works
A rooftop array on a block of flats can power the communal supply, the individual flats, or both. The simplest design feeds the landlord's supply for stairwell lighting, lifts and door entry, which cuts the service charge rather than individual bills. More complex systems split one array's output between the flats below. Allume Energy, which makes one such system, says each flat can keep its own electricity supplier; that is a maker's description, so ask any installer quoting for a block to explain exactly how the output is shared and metered.
On the cost side, a block-wide system is a commercial job rather than a domestic one, so it needs its own quote, and anything over the G98 threshold needs a G99 application to the network operator. Our guide to G98 and G99 explains the difference.
If the roof is not an option: plug-in solar
Since 27 August 2026 plug-in solar has been legal across Great Britain, and for many flats it is the only realistic way to generate your own electricity. The government says plug-in panels can go in any outdoor space or on some balconies, with each kit producing up to 800W, and estimates savings of up to £110 a year. It also tells people to check first whether they need permission from a landlord, freeholder or managing agent, planning permission or listed building consent.
One flats-specific limit applies in England: since 27 August 2026, plug-in solar on a block of flats is not permitted development if any part of it is fixed to a wooden wall, balcony or enclosure, or to timber-clad parts of the building's exterior. See our full guide to plug-in solar panels in the UK.
Flats in London
London is where this matters most in England. The 2021 Census found 54.0% of London households live in a flat, maisonette or apartment, against 21.7% across England and Wales. Some London boroughs have also eased solar on listed buildings, which affects many period conversions. See solar panels in London and our guide to solar panels on a listed building.
Before you ask for a quote
- Check who owns the roof. Read your lease or title deeds. In England the freeholder normally owns it; in a Scottish tenement the top flat usually does, but the other owners still have a say.
- Check the building type. In England, permitted development covers a building made up wholly of flats. A flat above a shop, or a flat in Wales or Northern Ireland, will probably need a planning application.
- Check for heritage designations. A listed building needs consent in every nation, and conservation areas restrict where panels go. See solar panels in a conservation area.
- Get consent in writing before work starts. A verbal yes from a managing agent will not help when you come to sell.
Once the people who control the roof are on board, get a solar quote. The form takes about a minute, and an MCS-certified installer will want to survey the roof before quoting.
Solar panels for flats: frequently asked questions
Yes. In England and Scotland rooftop solar on a block of flats can be permitted development if it meets the limits, while in Wales and Northern Ireland flats have no permitted development right for solar, so a planning application is likely. In every nation you also need the agreement of whoever owns or manages the roof, usually the freeholder in England or the other owners in a Scottish tenement.
Almost certainly, if the panels go on the roof or an outside wall. The Leasehold Advisory Service explains that the roof and external walls are usually retained premises owned by the landlord, and where works affect them the landlord can refuse without acting reasonably or giving reasons. A landlord can also charge a premium for consent, with no legal cap.
Usually not. Scotland's Class 6HA permitted development right covers solar on a dwelling, which includes flats, with up to 1m protrusion. Listed buildings and World Heritage Sites are excluded, and in a conservation area panels must go on a rear elevation or a side elevation that does not front a road.
Often, yes. Plug-in solar has been legal across Great Britain since 27 August 2026, and the government says kits can go on some balconies. Check your lease and ask your landlord or freeholder first. In England, plug-in solar on a block of flats is not permitted development if any part is fixed to a wooden wall, balcony or enclosure, or to timber cladding.
Unless the title deeds say otherwise, the top-floor flat owns the roof over it under section 2(3) of the Tenements (Scotland) Act 2004. The roof is still scheme property under the Tenement Management Scheme, and improvements such as a new solar array generally need all owners to agree.
Either the array feeds the communal supply, cutting the service charge for lighting and lifts, or a specialist system splits its output between individual flats, each keeping its own supplier. Ask any installer quoting for a block to explain exactly how the output is shared and metered.
Sources
- legislation.gov.uk: GPDO 2015 Schedule 2 Part 14 (as amended by SI 2026/896)
- Explanatory Memorandum to SI 2026/896
- gov.scot: Planning Circular 1/2024
- gov.wales: planning permission for solar panels
- Planning (General Permitted Development) Order (Northern Ireland) 2015
- Leasehold Advisory Service: alterations and home improvements
- Tenements (Scotland) Act 2004 and Under One Roof: whose agreement do we need?
- gov.uk: plug-in solar panels come to market (26 August 2026)