Permitted Development Extensions in Islington

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

• Extension within a conservation area in Islington
• Eaves height exceeding 3 metres near boundary
• Extension built beyond original rear wall line
• Incorrect measurement from original dwelling
• Two-storey extension too close to rear boundary
• Outbuilding positioned forward of principal elevation

Property Types We Advise On in Islington

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

Frequently Asked Questions

What is the 45-degree rule?

The 45-degree rule is a guideline used by some councils to assess impact on neighbouring properties, particularly in relation to light and outlook.

How much does a planning application cost?

Fees vary depending on project type and local authority charges.

Can I extend onto agricultural land?

Residential permitted development rights apply only within the residential curtilage.

Can I convert my loft and add a dormer?

Dormer loft conversions are often permitted development within volume limits.

Are there restrictions on side-facing windows?

Yes. Upper-floor side-facing windows typically must be obscure-glazed and non-opening below a certain height.

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

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

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