Do You Need Planning Permission for a Porch?

Do You Need Planning Permission for a Porch?

If you’re thinking of adding a porch to your home, the good news is that in most cases, you won’t need planning permission. In fact, many porches fall under what’s called permitted development, meaning you can build without a formal planning application — as long as you meet certain conditions.

Here’s a quick guide to help you understand the rules before you start planning your new entrance.

When a Porch Doesn’t Need Planning Permission

You can usually build a porch without planning permission if it meets all of these conditions:

• Size: The porch’s ground floor area (measured externally) is no more than three square metres.
• Height: No part of the porch is higher than three metres above ground level.
• Location: The porch is at least two metres away from the boundary of your property and the public highway (for example, a pavement or road).

If your porch meets these three criteria, it’s considered permitted development — so you won’t need to apply for planning permission.

When You Do Need Permission

There are a few cases where you’ll need to apply for planning permission:

You live in a flat or maisonette. The permitted development rules apply only to houses.

Your property is in a conservation area or has special restrictions. Some homes have had their permitted development rights removed — often through what’s called an Article 4 Direction. These are more common in conservation areas to help preserve local character.

Previous planning conditions apply. When your home was built or extended, the local council may have removed your right to make further changes without permission.

If you’re not sure whether your property is affected, check with your Local Planning Authority. Your solicitor may also have flagged this when you bought your home.

Why It’s Still Worth Checking Before You Build

Even if your porch qualifies as permitted development, it’s always best to double-check before starting any work. Your local council can confirm your permitted development rights, and you can also apply for a Lawful Development Certificate to have official confirmation that planning permission isn’t needed. This can be useful if you ever decide to sell your home.

Building Regulations Still Apply

While planning permission may not be necessary, your porch will still need to meet building regulations in certain cases — for example, if it affects the property’s electrical systems, energy efficiency, or access routes. A reputable installer will ensure your porch complies with all current standards.

In Summary

You can usually build a porch without planning permission if it:

• Covers less than 3m²
• Is under 3m high
• Is at least 2m from the highway

But if your home is listed, in a conservation area, or has restricted rights, it’s best to get advice first.

A well-designed porch can not only improve your home’s kerb appeal but also add insulation, storage, and a welcoming first impression,  all without the hassle of a planning application. You can find out about planning permission for porches in Wales on the .gov website.

Why Choose Heath Windows and Doors for Your New Porch?

Choosing Heath Windows and Doors for your new or replacement porch means partnering with a trusted Cardiff-based company renowned for its expertise, premium products, and exceptional customer service.

With years of experience in delivering bespoke home improvements, Heath Windows and Doors ensures each installation is tailored to your property’s needs. Our commitment to quality means you’ll receive durable, energy-efficient products that enhance your home’s aesthetics and value.

Local homeowners consistently praise our professionalism, attention to detail, and friendly service, making us the top choice in the region. See our reviews on Google and Allchecked. When you choose Heath Windows and Doors, you’re not just upgrading your property—you’re investing in a reliable, customer-focused experience from start to finish.

Get in touch to book a free home visit. Call 02920650854, email [email protected] or use our quote request form.