Permitted Development Extensions in Harrietsham

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

• Roof alteration exceeding permitted cubic volume
• Permitted development rights removed by planning condition
• Outbuilding positioned forward of principal elevation
• Dormer facing road
• Overall height above permitted maximum
• Eaves height exceeding 3 metres near boundary

Property Types We Advise On in Harrietsham

• Victorian properties
• Detached houses in Harrietsham
• Homes subject to Article 4 Directions
• Properties with previous extensions
• Properties within conservation areas

Frequently Asked Questions

Are basements covered by permitted development?

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

Will permitted development rules change?

Planning legislation can change over time, so it is important to check current regulations.

Are there restrictions on side-facing windows?

Yes. Upper-floor side-facing windows typically must be obscure-glazed and non-opening below a certain height.

Can I build right up to my boundary?

It depends on height and location. Boundary proximity affects allowable eaves height.

Can I extend my house in a flood zone?

Extensions in flood risk areas may require additional assessments and possibly planning permission.

How is the original house defined for measurement purposes?

The “original house” refers to the property as it stood on 1 July 1948 or when it was first built, not including later extensions.

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