Solar · Rule Change · 2026

Do You Need Planning Permission for Solar Panels in the UK?

For most homes in 2026, the answer is no — a change to permitted development rights means most rooftop and ground-mounted solar installations no longer need a formal planning application. Here's exactly who's covered, who isn't, and how to check your own property.

No, usually

For most UK homes

£200–£400

Application fee now avoided

2026

Permitted development rights expanded

Exceptions apply

Listed buildings, conservation areas

Quick answer: For the vast majority of UK homes, solar panel planning permission is no longer required. The Ministry of Housing, Communities and Local Government confirmed changes to permitted development rights in 2026 that cover most roof-mounted and ground-mounted domestic solar installations. The main exceptions are listed buildings, conservation areas, and installations that exceed specific size or position limits. If none of those apply to you, you can install without submitting a planning application at all — and without paying the £200–£400 fee that used to come with it.

What actually changed

Permitted development rights are the standing rules that let homeowners make certain changes to their property without applying for individual planning permission — loft conversions, some extensions, and now, for most homes, solar installations fall into this category. The 2026 update from MHCLG expanded these rights specifically for domestic solar, covering both rooftop arrays and ground-mounted panels.

Practically, this means most homeowners installing solar can skip the planning application entirely: no application form, no planning committee, no fee, and no waiting period that used to run to several weeks. Your installer still has to follow building regulations for the electrical work, but that's a separate, much simpler process from planning permission.

Who still needs to apply

The exemption doesn't cover everyone

Listed buildings — almost always need listed building consent for any external alteration, solar included
Conservation areas — often carry extra restrictions, particularly for anything visible from the street or a public space
Installations exceeding size limits — very large arrays, or panels projecting a significant distance from the roof slope, may fall outside the permitted development thresholds
Some flats and maisonettes — permitted development rights for solar have historically applied more narrowly to houses than to flats; check with your freeholder and local authority if you own a flat

If any of these apply to you, that doesn't mean solar is off the table — it means you need a standard planning application rather than being able to skip it. A good MCS-certified installer will usually flag this during the initial survey, but it's worth asking directly before you commit to a quote.

How to check your own property

Three steps, in order of speed:

1. Check if you're in a conservation area or listed building. Your local council's planning portal will confirm this — search your postcode on their website, or call the planning department directly.
2. Ask your installer during the survey. A reputable MCS-certified installer checks this as standard practice and will tell you upfront whether your specific installation needs an application.
3. Contact your local planning authority directly if you're unsure. A brief pre-application enquiry costs nothing in most areas and gives you a definitive answer before you commit to anything.

Ground-mounted panels — the other change worth knowing

The 2026 update also clarified size limits for ground-mounted solar arrays — the kind installed in a garden rather than on a roof, popular where a roof is unsuitably shaded, oriented, or structurally unable to take panels. These now have clearer permitted development thresholds too, though ground-mounted systems in gardens have historically faced somewhat different rules from rooftop arrays, so it's worth confirming the specific limits for your situation rather than assuming rooftop rules apply identically.

What this doesn't change

Two things stay exactly as they were, and it's easy to conflate them with planning permission:

Building regulations still apply. Planning permission and building regulations are different things. Your installation still needs to meet building regulations for structural and electrical safety — an MCS-certified installer handles this as a normal part of the job, and it isn't affected by the planning permission changes at all.

And separately, this exemption doesn't touch the plug-in solar rules we've covered in detail elsewhere on the site — those are about wiring regulations and self-install, a completely different piece of law from planning permission. If you're looking at a full rooftop array, this page is what applies; if you're looking at a balcony or plug-in kit, see our plug-in solar specification guide instead.

Frequently asked questions

Do I need planning permission for solar panels on my house?

For most homes, no. Following the 2026 changes to permitted development rights, most rooftop and ground-mounted domestic solar installations no longer require a planning application, unless you live in a listed building, a conservation area, or your installation exceeds specific size limits.

How much does the exemption actually save me?

Typically £200–£400 in the planning application fee that many homeowners previously budgeted for, plus the weeks of waiting time a formal application would have added to your project timeline.

I live in a conservation area — am I definitely excluded?

Not necessarily excluded, but you're more likely to need an application, particularly if the panels would be visible from a road or public space. Check with your local planning authority before assuming either way.

Does this apply to flats as well as houses?

Permitted development rights for solar have traditionally been narrower for flats and maisonettes than for houses. If you own a flat, check with your freeholder and local council rather than assuming the same exemption applies automatically.

Do I still need to notify anyone about my installation?

Yes — planning permission and grid connection notification are separate. Your installer still handles G98/G99 notification to your Distribution Network Operator and ensures the work meets building regulations, regardless of whether planning permission was needed.

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Published 26 July 2026. Based on the Ministry of Housing, Communities and Local Government's 2026 update to permitted development rights for domestic solar installations. Rules vary by local authority interpretation, property type, and specific site circumstances — always confirm your own situation with your local planning authority or a qualified installer before proceeding. This is general information, not planning advice.