Permitted Development Extensions in Eton

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

• Extension on a flat or maisonette
• Materials not matching existing dwelling
• Outbuilding positioned forward of principal elevation
• Dormer facing road
• Incorrect measurement from original dwelling
• Overall height above permitted maximum

Property Types We Advise On in Eton

• Townhouses
• Properties with outbuildings
• Terraced houses
• Bungalows
• Semi-detached houses

Frequently Asked Questions

Can I build a two-storey extension without planning permission?

Two-storey extensions are sometimes permitted, but stricter limits apply to height, rear projection distance, and window placement to avoid overlooking neighbours.

Can I remove a chimney without permission?

External alterations may require permission depending on property type and location.

What is prior approval neighbour consultation?

For larger extensions, councils notify neighbours and assess specific impacts before granting prior approval.

Does an Article 4 Direction affect my extension plans?

Yes. Article 4 Directions remove certain permitted development rights, meaning planning permission may be required.

What measurements are used for height?

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

Can I extend a flat under permitted development?

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

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