Solar Planning Permission Scotland

Do I need planning permission for solar panels in Scotland?

For the large majority of houses, no. Roof-mounted solar panels are treated as "permitted development" under Scottish planning law, which means you can fit them without applying for planning permission, in the same way you can put up a satellite dish or a garden shed.

That general rule has always had a catch, though: conservation areas and listed buildings were treated differently, and often needed permission where an ordinary house did not. The rules on conservation areas changed in 2024, which is the part most homeowners, and some installers, have not caught up with yet.

What changed for conservation areas in May 2024?

The Town and Country Planning (General Permitted Development) (Scotland) Amendment Order 2024, known by its reference SSI 2024/102, came into force on 24 May 2024. It extended permitted development rights for roof solar into conservation areas, which previously needed a planning application in almost every case.

Before this change, a conservation-area home fitting solar panels typically had to submit a full application and wait for a decision, adding weeks and sometimes cost to a straightforward job. The 2024 order removed that requirement for most conservation-area roofs, with two specific exceptions covered below. Because the change is relatively recent, some older advice online, and some installers who have not checked the current legislation, still describe conservation areas as needing permission across the board. That is now out of date.

What is and isn't allowed in a conservation area now?

Under the current rules, roof solar in a conservation area is permitted development, meaning no planning application is needed, everywhere except two situations: panels on the principal elevation, and panels on a side elevation that fronts a road.

In practice, that means a rear roof slope, or a side roof slope that does not face a road, is normally fine without permission. A front-facing roof slope on a conservation-area house, or a side slope that a road runs past, still needs a planning application. This is exactly the kind of detail a roof survey should flag before any quote is finalised, since it affects timing rather than whether solar is possible at all.

What about listed buildings?

Listed buildings sit outside all of this. The 2024 changes, and the permitted development rights for roof solar generally, do not apply to a listed building. Listed building consent is required for solar panels regardless of which elevation you use, front, rear or side.

That does not mean solar is off the table for a listed building. It means the process runs through your local authority's listed building consent procedure rather than permitted development, and the panel positioning, mounting method and visual impact tend to get more scrutiny. Worth knowing early, since it changes the timeline of a project, not just the paperwork.

Are there limits on how far panels can stick out?

Yes. Even where solar counts as permitted development, there is a standard condition: panels must not protrude more than 1 metre from the external wall, the roof plane, the roof ridge, or a chimney. That 1 metre limit applies across the board, not only at the ridge line, so it covers side walls and chimneys too, not just how high the array sits above the roofline.

For the overwhelming majority of standard roof-mount solar installations, panels sit close to the roof surface and are nowhere near this limit. It mostly matters for unusual mounting setups, such as panels angled well away from the roof pitch to improve orientation, which is another reason a proper survey looks at mounting method, not just panel count.

What about flats and tenements?

Everything above is written for houses. Flats and tenements, common across Glasgow and Edinburgh, run under a different set of rules again: shared-roof ownership means solar usually counts as a building "improvement" rather than routine maintenance, which brings in the Tenements (Scotland) Act 2004 and typically means every affected owner has to agree, plus a building warrant is always needed regardless of the building's height. That is a substantial enough topic that it gets its own guide: see our full breakdown of solar on a Scottish tenement for the step-by-step process.