Permitted Development Extensions in Southill

We provide clear, professional guidance on permitted development extensions in Southill and surrounding areas. Whether you’re planning a rear, side, or two-storey extension, understanding local planning constraints and national permitted development limits is essential before work begins.

Common Permitted Development Issues in Southill

• Rear extension exceeds permitted projection limits Southill
• Outbuilding positioned forward of principal elevation
• Side extension exceeds half the width of the original house
• Extension on a flat or maisonette
• Listed building restrictions
• Permitted development rights removed by planning condition

Property Types We Advise On in Southill

• Detached houses in Southill
• Bungalows
• Edge-of-settlement homes
• Properties within conservation areas
• Townhouses

Frequently Asked Questions

Does building regulations approval still apply?

Yes. Even if planning permission is not required, building regulations approval is usually still necessary.

What is the maximum size allowed under permitted development?

Size limits depend on property type and location. Detached houses may have larger rear extensions than terraced homes, subject to height and boundary constraints.

How close can I build to my neighbour’s boundary?

Extensions built close to a boundary must meet height and eaves restrictions, especially if within two metres of the boundary.

Are basements covered by permitted development?

Basement development may require planning permission, especially if it alters the external appearance.

Can I extend in a National Park?

National Parks have stricter controls and reduced permitted development rights.

What is a Lawful Development Certificate?

A Lawful Development Certificate provides formal confirmation from the local authority that your extension complies with permitted development rules.

If you're planning an extension in Southill and want to confirm whether it qualifies under permitted development rules, request a free assessment today and get clarity before you build.