Ordinary limits: projection and ridge height
On a pitched roof, panels relying on permitted development should project no more than 200mm from the roof slope and must not sit higher than the highest part of the roof, excluding the chimney. Ask the installer to confirm the mounting system meets both limits on your roof before the quote is finalised.
Planning Portal: solar equipment mounted on a house (rules as amended 27 August 2026) ↗Source checked 2026-09-12.