Do solar panels need planning permission?
Many ordinary rooftop solar installations can go ahead without a full planning application. The rules depend on where you live, your building and the position of the panels.
Where is your home?
England
Many rooftop systems are allowed under “permitted development” rules, which let certain work proceed without a planning application if all conditions are met. For a pitched roof, panels normally must not project more than 200 mm from the roof or rise above its highest part, excluding the chimney. Flat-roof equipment has a 600 mm height limit.
Wall and balcony installations have different limits, and rules changed on 27 August 2026. Restrictions also apply to listed buildings, protected areas and some plug-in installations. Check the Planning Portal’s current guidance for your design and ask the council if you are unsure.
Wales
Many roof or wall installations on a house can use permitted development rights. Panels should not rise above the roof ridge or project more than 200 mm. On a flat roof, they should be at least 1 metre from the edge and no more than 1 metre above the roof.
Flats, listed buildings and protected areas need extra checks. Local restrictions can also remove normal rights. Read the Welsh Government guidance.
Scotland
Many home installations can use permitted development rights. Equipment on a dwelling must not project more than 1 metre. Listed buildings, their grounds and World Heritage Sites are excluded from these rights.
In conservation areas, panels must be on the back or on a side that does not face a road. Outbuildings have separate conditions, including a 500 mm projection limit. Check the Scottish Government guidance for the full conditions.
Northern Ireland
Ask your local planning office before installing panels, especially for listed buildings and homes in conservation areas. Show them the proposed position and height of the panels and any other equipment. Read nidirect’s solar panel guidance.
When should you ask the council?
- Your home is listed or in a conservation area or other protected location.
- You live in a flat or are planning wall, balcony, outbuilding or ground-mounted panels.
- The panels are raised above the roof or close to a boundary.
- A previous planning condition or local restriction may apply.
- You or your installer are unsure which rules cover the design.
Get the answer before agreeing to the final installation. Ask what written confirmation is available for your property.
What other permission might you need?
Planning is one part of the checks. The roof needs to carry the panels safely, and the electrical work must meet the relevant requirements. Ask who will handle building-control checks and any application or notification to your local electricity network.
If you rent or have a leasehold property, check with the landlord or freeholder. Your insurer or mortgage provider may also have conditions.
Ask your installer for
- A drawing of the panels and equipment on your property.
- An explanation of which planning rules apply.
- Confirmation of who will check local restrictions and obtain permission.
- A list of the documents you will receive when the work is complete.
For small socket-connected systems, see our plug-in solar guide.