Permitted Development Extensions in Colnbrook

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

• Eaves height exceeding 3 metres near boundary
• Extension within a conservation area in Colnbrook
• Side extension exceeds half the width of the original house
• Roof alteration exceeding permitted cubic volume
• Extension covering more than 50% of garden area
• Two-storey extension too close to rear boundary

Property Types We Advise On in Colnbrook

• Semi-detached houses
• Townhouses
• Rural properties
• Properties with previous extensions
• New build developments

Frequently Asked Questions

Can I build an outbuilding in my garden?

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

Can I build right up to my boundary?

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

Do I need drawings for a Lawful Development Certificate?

Yes. Accurate scaled drawings are required to demonstrate compliance.

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.

Will permitted development rules change?

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

Do permitted development rights expire?

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

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