Permitted Development Extensions in Lambeth

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

• Rear extension exceeds permitted projection limits Lambeth
• Materials not matching existing dwelling
• Extension on a flat or maisonette
• Overall height above permitted maximum
• Two-storey extension too close to rear boundary
• Side extension exceeds half the width of the original house

Property Types We Advise On in Lambeth

• Homes subject to Article 4 Directions
• Chalet-style houses
• Properties with outbuildings
• Properties within conservation areas
• Victorian properties

Frequently Asked Questions

What is retrospective planning permission?

Retrospective applications seek approval for work already carried out.

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.

Can I submit planning drawings myself?

Yes, but professional plans improve clarity and reduce refusal risk.

Is there a limit on total site coverage?

Yes. Extensions and outbuildings combined must not cover more than 50% of the curtilage of the original house.

Does permitted development apply to HMOs?

Some permitted development rights may be restricted depending on property use class.

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