Permitted Development Extensions in Barnet

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

• Dormer facing road
• Overlooking concerns from upper floor windows
• Outbuilding positioned forward of principal elevation
• Extension on a flat or maisonette
• Extension built beyond original rear wall line
• Prior approval required but not obtained

Property Types We Advise On in Barnet

• Townhouses
• New build developments
• Corner plot homes
• Homes subject to Article 4 Directions
• Bungalows

Frequently Asked Questions

What is a Lawful Development Certificate?

A Lawful Development Certificate provides formal confirmation from the local authority that your extension complies with permitted development rules.

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 flat under permitted development?

Flats and maisonettes generally do not benefit from permitted development rights for extensions.

What measurements are used for height?

Height is typically measured from the highest ground level adjacent to the building.

What is the difference between planning permission and building regulations?

Planning permission controls development impact, while building regulations ensure structural safety and compliance.

Will neighbours be notified?

Under prior approval procedures or planning applications, neighbours are typically notified.

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