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

• Extension covering more than 50% of garden area
• Eaves height exceeding 3 metres near boundary
• Extension within a conservation area in Barnet
• Dormer facing road
• Permitted development rights removed by planning condition
• Incorrect measurement from original dwelling

Property Types We Advise On in Barnet

• Detached houses in Barnet
• Corner plot homes
• Terraced houses
• Homes subject to Article 4 Directions
• Chalet-style houses

Frequently Asked Questions

Can I appeal a planning refusal?

Yes. Applicants may appeal to the Planning Inspectorate within specified time limits.

Can I extend onto agricultural land?

Residential permitted development rights apply only within the residential curtilage.

What measurements are used for height?

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

Can I build over a sewer?

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

Can I convert my garage into living space?

Garage conversions are often permitted development, but planning restrictions may apply depending on conditions attached to the original approval.

Can I extend a semi-detached house differently to a detached house?

Yes, size limits and projection distances differ depending on property type.

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.