Permitted Development Extensions in Dunstable

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

• Outbuilding positioned forward of principal elevation
• Overall height above permitted maximum
• Side extension exceeds half the width of the original house
• Two-storey extension too close to rear boundary
• Roof alteration exceeding permitted cubic volume
• Extension covering more than 50% of garden area

Property Types We Advise On in Dunstable

• Corner plot homes
• Victorian properties
• Properties with previous extensions
• Townhouses
• Homes subject to Article 4 Directions

Frequently Asked Questions

Do I need drawings for a Lawful Development Certificate?

Yes. Accurate scaled drawings are required to demonstrate compliance.

Are basements covered by permitted development?

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

Do I need planning permission for a rear extension in Dunstable?

Many rear extensions fall within permitted development limits, but projection depth, height, and boundary proximity must comply with national rules and any local restrictions.

What happens if I build without permission?

The council may take enforcement action requiring alterations or removal of unauthorised works.

Can I build over a sewer?

Building near or over a public sewer may require a build-over agreement from the relevant water authority.

Are side extensions allowed under permitted development?

Side extensions are permitted in some cases, but must not exceed half the width of the original house and must meet height limits.

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