If you're thinking about installing solar panels, one of your first questions may be: do I need planning permission?

For most homeowners in England, the good news is that solar panels can usually be installed under permitted development rights. This means you may not need to make a formal planning application, provided the installation meets the relevant conditions.

There are, however, important exceptions. Listed buildings, conservation areas, some ground-mounted systems and properties affected by additional local planning restrictions can require greater consideration.

So, before you let planning worries put you off solar, here's what you need to know.

Do solar panels need planning permission?

In many cases, no. Solar panels installed on residential properties in England can fall within permitted development rights, meaning a separate application for planning permission isn't normally required when the relevant limits and conditions are satisfied.

This is one of the reasons installing solar panels at home can be more straightforward than many homeowners initially expect.

However, permitted development isn't an automatic exemption for every property or every solar installation. The design, position and property itself need to meet the relevant requirements.

What is permitted development?

Permitted development rights allow certain types of work to a property to take place without submitting a conventional planning application.

Solar panels can benefit from these rights where the installation meets the relevant conditions.

That doesn't mean there are no rules. It means that, when your proposed solar installation remains within those rules, a full planning application may not be necessary.

What are the permitted development rules for roof-mounted solar panels?

The precise requirements depend on your property and the way the panels will be installed.

For a typical pitched roof, key considerations include:

• The solar panels should not normally project more than 200mm from the roof slope or wall surface.
• The panels should not normally be installed above the highest part of the roof, excluding the chimney.
• The installation should, so far as practicable, be positioned to minimise its effect on the external appearance of the building and surrounding area.

Most modern roof-mounted domestic solar arrays are designed to sit relatively close to the roof, which can make complying with these requirements straightforward on many properties.

Do I need planning permission for solar panels on a flat roof?

Solar panels can also be installed on flat roofs, but the permitted development limits differ from those applying to a conventional pitched roof.

Under current Planning Portal guidance, the highest part of the solar PV equipment on a flat roof should not be more than 600mm higher than the highest part of the roof, excluding any chimney.

The mounting system therefore needs to form part of the overall solar design rather than being considered separately.

Can I install solar panels in a conservation area?

Living in a conservation area doesn't automatically mean you can't have solar panels.

There are, however, additional restrictions and considerations because of the importance placed on protecting the appearance and character of these areas.

Planning Portal guidance states that in a conservation area or World Heritage Site, panels must not be fitted to a wall which fronts a highway under the relevant permitted development provisions.

Properties can also be affected by additional local planning controls, so it's particularly important to check the position before installation if you live within a conservation area.

Your Local Planning Authority (LPA) can confirm whether additional permission or prior approval applies to your particular property.

Can you put solar panels on a listed building?

Listed buildings need much more careful consideration.

Consent is required when installing photovoltaic systems on a listed building.

Unlike a typical modern property, alterations to a listed building have to be considered in the context of its special architectural or historic interest.

This doesn't necessarily mean solar is impossible, but the location, visibility, installation method and impact on the historic building can all become important considerations.

If you own a listed property and are considering solar, we recommend establishing the relevant requirements before finalising the system design.

Do ground-mounted solar panels need planning permission?

Solar panels don't always have to go on the roof. If roof space, orientation or another property-specific issue makes a roof installation unsuitable, a ground-mounted solar array may sometimes be considered.

However, different permitted development conditions apply to stand-alone solar equipment, including considerations around its size, height and position within the property.

If you're considering ground-mounted solar rather than a conventional roof installation, planning requirements should therefore form part of the design process from the beginning.

Do solar panels need Building Regulations approval?

Planning permission isn't the only consideration when installing solar panels.

Solar PV installations also interact with Building Regulations. Relevant considerations can include the structural suitability of the roof, electrical safety and fire safety.

This is an important distinction because permitted development and Building Regulations are not the same thing.

An installation not requiring a conventional planning application doesn't mean that other regulatory requirements disappear.

What about DNO approval for solar panels?

Connecting solar panels to your home also brings electricity network requirements into the picture.

Depending on the size and configuration of your system, the installation may need to comply with the relevant G98 or G99 grid connection process.

Your local Distribution Network Operator, commonly referred to as the DNO, is responsible for the local electricity distribution network.

This is separate from planning permission.

At Renewable Energy Service, the DNO application is included as part of our home solar installations, so you don't need to navigate that part of the process yourself.

What about MCS certification?

Planning permission should also not be confused with MCS certification.

MCS is the recognised quality framework for small-scale renewable energy technologies and installations.

It can be particularly important if you want to apply for an eligible Smart Export Guarantee (SEG) tariff and receive payments for renewable electricity exported back to the grid.

Renewable Energy Service includes MCS certification with its domestic solar installations alongside the DNO application and other installation documentation.

What if I'm not sure whether my home needs planning permission?

If there is any uncertainty, don't guess.

Your Local Planning Authority is responsible for planning matters in your area and can advise on the planning status of a particular property or proposed installation.

This is especially worth considering if:

• Your home is a listed building.
• Your property is within the curtilage of a listed building.
• You live in a conservation area.
• Your property is in a World Heritage Site.
• An Article 4 Direction could apply.
• You're considering an unusual or prominent installation.
• You want a ground-mounted solar array.
• The proposed system falls outside normal permitted development limits.

Getting clarity early is much easier than discovering a planning issue once equipment has been ordered or installation work has begun.

Planning shouldn't be the starting point for your solar design

Before deciding where panels should go, we think it's more useful to start with what you actually want the system to achieve.

That means considering your:

• Property and available roof space.
• Roof orientation and layout.
• Current electricity consumption.
• Expected future electricity requirements.
• Potential battery storage requirements.
• Plans for technologies such as an EV charger or heat pump.
• Budget and long-term energy objectives.

The solar array can then be designed around your circumstances while taking the relevant technical and planning considerations into account.

Your system needs to work with the property itself. That's why we design the installation around your home rather than treating solar as an off-the-shelf product.

What is included with a Renewable Energy Service solar installation?

There's more to buying a solar system than panels on a roof.

Our home solar installations include:

• Scaffolding
• Electrical and roofing components
• Delivery and waste removal
• DNO application
• MCS certification
• Bird Blocker
• Three-year workmanship warranty
• Product warranties
• Handover pack
• Insurance-backed guarantee
• UK-based aftercare
• Annual system health check

It means you can consider the complete installation and ongoing support rather than comparing solar quotations solely on the number of panels or the initial price.

So, do you need planning permission for solar panels?

For many homeowners in England, a standard roof-mounted solar installation won't require a conventional planning application because it can fall within permitted development rights.

But that shouldn't be taken as a blanket rule.

Your property, the position of the panels, the type of roof and any special planning designation can all affect the requirements.

Listed properties, conservation areas, Article 4 Directions and more unusual solar installations deserve particular attention.

The best approach is therefore to consider planning and regulatory requirements as part of the overall system design rather than leaving them until installation day.