Installing solar panels is one of the most effective ways for UK homeowners to reduce electricity bills and take back control of their energy future. However, questions around planning permission – especially for homes in a conservation area or those with listed building status – often cause uncertainty.
This guide will explain when planning permission is required, what rules apply in the South East and how to move forward with confidence when considering solar PV for your property.
Do Solar Panels Need Planning Permission in the UK?
In most cases, solar panels do not require planning permission for residential properties. They fall under permitted development rights, provided certain conditions are met.
For a standard home, solar panels are usually allowed if:
- Panels do not protrude more than 200mm from the roof surface
- They are installed below the roof ridge
- The system is designed to minimise visual impact
- Panels are removed when no longer in use
These rules apply across England, including Essex, Kent, Suffolk and the surrounding South East.
However, there are important exceptions.
Solar Panels in a Conservation Area
If your property is located within a conservation area, permitted development rights may be restricted. In these cases roof mounted solar panels are often still allowed, but street facing roof slopes may require additional consideration and ground mounted systems are likely to need approval.
Local planning authorities assess whether solar panels preserve the character and appearance of the area. Discreet placement and modern low profile panels can significantly improve the chance of approval.
Installing Solar Panels on a Listed Building
If your home is a listed building, planning permission is almost always required. Listed Building Consent is needed for any work that affects the building’s character, even non-structural changes, such as roof installations, are covered. Both the building and the surrounding land are protected.
Approval is still possible, but proposals must demonstrate sensitivity to heritage features. In some cases, alternative solutions, such as rear roof installations or solar tiles, may be recommended.
Flats, Maisonettes and Shared Buildings
Permitted development rights do not apply to flats, maisonettes, commercial or mixed use buildings. In these situations, planning permission is required regardless of location. Consent from the freeholder or management company is also typically necessary.
Ground Mounted Solar Panels and Outbuildings
Ground mounted systems may require planning permission if they array exceeds size limits. If the system is installed within the curtilage of a listed building or the property is within a conservation area permission will also need to be sought.
Solar panels installed on garages or outbuildings often fall under permitted development rights, provided height and placement conditions are met.
Local Authority Guidance in the South East
While planning rules are set nationally, interpretation of the rules can vary by council. For authoritative guidance, homeowners and installers often refer to the Planning Portal, which outlines current regulations and local authority processes.
At SolarTherm UK, we routinely liaise with local councils across the South East to ensure installations comply fully with planning and building control requirements.
How SolarTherm UK Supports You
Our service includes:
- Initial planning eligibility checks
- Advice for conservation areas and listed buildings
- Design adjustments to reduce visual impact
- Support with planning applications where required
By addressing planning considerations early, we help avoid delays and ensure a smooth installation process.
Final Thoughts
While most UK homes can install solar panels without planning permission, properties in a conservation area or with listed building status require additional care and expert guidance.
If you’re unsure whether planning permission applies to your home, SolarTherm UK can assess your property and provide clear, compliant advice tailored to your local authority.
Speak to SolarTherm UK today for a free, no obligation quote and design, tailored to your property, usage and future energy needs. No hard sell, just honest, expert advice.
Your home. Your energy. Your future.
