Permitted Development Extensions in Biggin Hill

We provide clear, professional guidance on permitted development extensions in Biggin Hill 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 Biggin Hill

• Permitted development rights removed by planning condition
• Prior approval required but not obtained
• Article 4 Direction restrictions
• Extension on a flat or maisonette
• Overlooking concerns from upper floor windows
• Rear extension exceeds permitted projection limits Biggin Hill

Property Types We Advise On in Biggin Hill

• Properties with outbuildings
• Edge-of-settlement homes
• 1930s suburban homes
• Rural properties
• Chalet-style houses

Frequently Asked Questions

Do permitted development rights expire?

Permitted development rights generally remain unless removed by condition or Article 4 Direction.

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.

Do I need drawings for a Lawful Development Certificate?

Yes. Accurate scaled drawings are required to demonstrate compliance.

Can I add bi-fold doors to my extension?

Yes, provided the extension itself complies with permitted development rules and glazing requirements meet building regulations standards.

Does my extension need to match existing materials?

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

Can I build a wraparound extension without planning permission?

Wraparound extensions often exceed permitted development limits and usually require planning approval.

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