Permitted Development Extensions in Tenterden

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

• Roof alteration exceeding permitted cubic volume
• Overlooking concerns from upper floor windows
• Eaves height exceeding 3 metres near boundary
• Dormer facing road
• Extension covering more than 50% of garden area
• Two-storey extension too close to rear boundary

Property Types We Advise On in Tenterden

• Edge-of-settlement homes
• Properties within conservation areas
• Chalet-style houses
• Detached houses in Tenterden
• Terraced houses

Frequently Asked Questions

What is the maximum rear projection allowed?

Detached houses may extend up to four metres under standard rules, or eight metres with prior approval. Smaller limits apply to other house types.

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.

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 build a two-storey extension without planning permission?

Two-storey extensions are sometimes permitted, but stricter limits apply to height, rear projection distance, and window placement to avoid overlooking neighbours.

Do conservation areas affect permitted development rights?

Yes. Properties within conservation areas often have additional restrictions, and some permitted development rights may be limited or removed entirely.

What is the 45-degree rule?

The 45-degree rule is a guideline used by some councils to assess impact on neighbouring properties, particularly in relation to light and outlook.

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