Permitted Development Extensions in Sevenoaks

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

• Outbuilding positioned forward of principal elevation
• Overall height above permitted maximum
• Incorrect measurement from original dwelling
• Extension covering more than 50% of garden area
• Extension on a flat or maisonette
• Eaves height exceeding 3 metres near boundary

Property Types We Advise On in Sevenoaks

• Properties within conservation areas
• 1930s suburban homes
• Chalet-style houses
• Townhouses
• Edge-of-settlement homes

Frequently Asked Questions

What is the difference between planning permission and building regulations?

Planning permission controls development impact, while building regulations ensure structural safety and compliance.

Can I extend a semi-detached house differently to a detached house?

Yes, size limits and projection distances differ depending on property type.

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.

Are basements covered by permitted development?

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

Can I build an outbuilding in my garden?

Outbuildings may be permitted development if they meet height, location, and usage restrictions.

What is prior approval neighbour consultation?

For larger extensions, councils notify neighbours and assess specific impacts before granting prior approval.

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