Planning permission is consistently one of the top three concerns HomeKog encounters from homeowners considering solar — and it’s one of the most straightforward to resolve. The short answer is that the vast majority of UK homes do not need planning permission for solar panels. Here’s the full picture.
What Are Permitted Development Rights for Solar Panels?
In England, Wales, and Scotland, solar panel installations on domestic properties typically fall under permitted development (PD) rights — meaning they don’t require a planning application. This applies to most standard rooftop installations on standard residential buildings.
In Northern Ireland, permitted development rules are slightly different and it’s worth checking with your local council.
What Are the Conditions for Permitted Development in England?
Under the Town and Country Planning (General Permitted Development) Order, solar panels are permitted development on a dwellinghouse if they meet all of the following:
-
Panels do not protrude more than 200mm beyond the roof plane
-
Panels are not installed on a roof slope that faces a highway where this is the principal elevation (in some cases)
-
Panels do not exceed the highest point of the existing roof (excluding the chimney)
-
Panels are sited to minimise their effect on the external appearance of the building as far as practicable
-
Panels are removed when no longer needed
When Do You Need Planning Permission?
Planning permission is required if:
-
Your home is a listed building — even internal works need listed building consent, and anything affecting the external appearance requires careful handling
-
Your property is in a conservation area — while PD rights still technically apply in some conservation area scenarios, the roof must not face a highway, and there are additional visual impact considerations
-
Your home is in a World Heritage Site, National Park, AONB, or Area of Special Scientific Interest
-
You’re installing a ground-mounted system that exceeds 9 square metres in total panel area, stands more than 4 metres tall, or is located within 5 metres of a boundary
-
The installation requires structural alterations to the building beyond the panel fixings themselves
What About Flats, Leasehold, and HMOs?
Permitted development rights apply to the property as a whole, not individual flats within it. For leasehold homeowners, you’ll need written permission from your freeholder or management company. HMOs and properties with multiple occupancies need careful assessment, as the planning classification may differ from a standard dwellinghouse.
What Is a Lawful Development Certificate and Should You Get One?
A Lawful Development Certificate (LDC) is an optional document from your local planning authority confirming that your proposed installation is lawful under permitted development. It’s not required, but it provides formal confirmation that no planning permission is needed. Some homeowners request one for peace of mind, particularly if they’re in a grey-area location. HomeKog can advise on whether an LDC is worth obtaining for your specific property.
Do Permitted Development Rights Apply in Scotland and Wales?
Scotland and Wales have their own planning frameworks. Both have broadly similar permitted development provisions for domestic solar, but conditions differ in detail — particularly around listed buildings, conservation areas, and national scenic areas in Scotland. HomeKog’s team is familiar with the applicable rules across England, Scotland, and Wales.
The Part Nobody Talks About: Pre-Application Advice From Your Council
If you’re genuinely uncertain about your planning position — particularly for listed buildings or conservation area properties — most local planning authorities offer a pre-application advice service. For a small fee, a planning officer will give you their view on whether your proposed installation requires permission.
This step is underused by homeowners but can save significant time and cost. Getting a clear “yes this needs permission” or “no this is PD” before you start the formal installation process avoids delays, redesigns, and any potential enforcement complications later.
Frequently Asked Questions
Q: Can you appeal if planning permission is refused for solar panels?
Yes. If your application for solar panels is refused by the local planning authority, you have the right to appeal to the Planning Inspectorate in England and Wales, or the Directorate for Planning and Environmental Appeals in Scotland. The appeal process is free to submit, but can take several months. It’s worth taking professional advice before appealing.
Q: Do solar panels on a new-build require planning permission?
New-build homes are often designed with solar panels included as part of the planning consent granted for the development. In these cases, the panels are part of the approved scheme and no separate application is needed. If you’re adding solar to a new-build that wasn’t built with them, the same PD rules as any other residential property apply.
Q: Is building regulations approval needed for solar panel installation?
Solar panel installations are generally notifiable under Part P of the Building Regulations (electrical safety). Using an MCS-certified installer — such as HomeKog — satisfies this requirement automatically, as MCS installers are registered with NAPIT or NICEIC and can self-certify electrical work. Your installer will issue the relevant certification on completion.
