Installing solar panels can reduce your energy bills and carbon footprint. But before going solar, it’s important to understand the planning permission requirements. In the UK, the rules differ depending on the type of building and solar panel system.
Rules for Houses
For standard family homes, solar panels are usually permitted without the need for planning permission, subject to the following conditions:
- The panels are mounted on the roof or wall of the house itself, not on the ground.
- No more than 1 cubic metre extends beyond the plane of the roof.
- The panels are not installed on a listed building.
- The house is not in a designated conservation area.
- No restrictions or conditions related to solar PV are included in the property deed.
If your home solar project meets these requirements, you can proceed without applying for planning permission. Just be sure to use a certified installer and comply with building codes.
Rules for Flats and Apartments
For solar systems on blocks of flats or apartments, planning permission is often needed if:
- The building exceeds 4 storeys in height.
- Panels extend more than 1 metre from the external surface.
- Panels are visible from a public highway or space.
- The building is listed or in a conservation area.
To be safe, contact your local council and review the title deeds before installing solar as part of a flat or apartment block. The process may take longer to get approval.
Rules for Commercial and Public Buildings
For non-residential buildings like offices, warehouses, schools and public facilities, planning permission is required in most cases, unless:
- The solar installation is a stand-alone system on the ground, not affixed to the building.
- Panels are installed flat on an existing roof without protruding above the roofline.
- The building is not listed or in a designated area.
To summarize, carefully review the planning requirements before installing solar, particularly for flats, commercial buildings, or if your home is in a protected area. On standard family homes, however, solar PV can typically proceed without the need for council approval.