Permitted Development Extensions in Buckinghamshire

We provide clear, professional guidance on permitted development extensions in Buckinghamshire 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 Buckinghamshire

• Dormer facing road
• Rear extension exceeds permitted projection limits Buckinghamshire
• Overall height above permitted maximum
• Eaves height exceeding 3 metres near boundary
• Overlooking concerns from upper floor windows
• Extension covering more than 50% of garden area

Property Types We Advise On in Buckinghamshire

• Semi-detached houses
• Properties with outbuildings
• Terraced houses
• Rural properties
• Edge-of-settlement homes

Frequently Asked Questions

Does my extension need to match existing materials?

While not always mandatory under permitted development, matching materials is often recommended for visual consistency.

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.

What measurements are used for height?

Height is typically measured from the highest ground level adjacent to the building.

Can I convert my loft and add a dormer?

Dormer loft conversions are often permitted development within volume limits.

Are basements covered by permitted development?

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

How high can my extension be?

Height limits vary, but rear extensions under permitted development generally cannot exceed four metres for detached houses or three metres for others.

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