Thinking about going solar? Installing a solar PV system is an excellent way to produce renewable energy, reduce your carbon footprint, and cut down on energy costs. But before you get started, you might wonder: Do I need planning permission to install solar panels?
The Short Answer: Usually No
For most businesses, planning permission for solar panel installation isn’t required to install solar panels. This is because they fall under what’s known as “permitted development rights”, which allow certain building works without formal permission. However, there are important conditions to meet to ensure compliance.
Let’s break it down.
Key Rules for Solar Panel Installations
While solar panels generally don’t require planning permission, your installation must adhere to these guidelines:
- Minimal Visual Impact: Panels should have little effect on the appearance of your building and surrounding area.
- Height Restrictions: Panels must not extend above the highest point of your roof (excluding chimneys).
- Projection Limits: Panels should not protrude more than 200mm (0.2m) from the roof slope or wall surface.
- Listed Buildings & Monuments: Solar panels cannot be installed on listed buildings or scheduled monuments without specific consent.
- Removal When Redundant: If the system is no longer in use, it should be taken down.
If your property is in a conservation area, additional rules apply.
Ground-Mounted Solar Panels: Special Considerations
Considering ground-mounted solar panels? Here are the extra requirements:
- Must be at least 5 metres from your property boundary.
- Cannot exceed 4 metres in height.
- The total array must be no more than 9m x 3m x 3m.
- Only the first installation qualifies as permitted development; additional installations will need planning permission.
Solar Panels on Flat Roofs
Yes, you can install solar PV panels on a flat roof, but:
- Panels usually need frames to achieve the right angle toward the sun.
- Installers often place panels in a landscape layout to reduce wind impact.
- Gaps between rows are necessary to avoid shading.
- A structural survey may be needed to confirm your roof can support the system.
Your installer can guide you through this, though you might need to arrange the survey separately.
What About Conservation Areas?
Conservation areas protect historical or architectural heritage. There are around 10,000 conservation areas in England.
- You can generally get planning permission for solar panel installation, but they must not be visible from public highways.
- When in doubt, consult your local planning authority.
Installing Solar Panels on Listed Buildings
For listed buildings (Grade I, Grade II), you’ll need listed building consent to install solar panels. This applies whether the panels are:
- On the listed structure itself.
- Within its grounds.
- On a non-listed building located within the grounds.
Listed building consent differs from planning permission and is obtained through your local planning authority. Organisations like Historic England may also need to review your proposal.
Applying for Solar PV Planning Permission
If you determine that planning permission is necessary:
- Start with the Planning Portal – They provide guidance on whether permission is needed and help with applications.
- Submit Your Application – Expect a response within 8 weeks, though complex cases can take longer.
- Wait for Approval – Once granted, you have three years to begin the installation.
Apply early to avoid delays in your project timeline.
What If Your Application Is Denied?
While most applications are approved when guidelines are followed, denials can happen. If your application is refused:
- Review the reasons provided.
- Consider modifying your proposal to address concerns.
- Appeal the decision if you believe it was unjustified.
Final Thoughts
For most projects, planning permission isn’t a barrier to going solar. But even if it is required, it doesn’t have to be complicated. At Sunpower Services, we’re here to support you every step of the way, from navigating planning permissions to enjoying the benefits of clean, cost-effective energy.
Ready to start your solar journey? Let’s make it happen!
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All information correct as of: 20th March 2025.