Permitted Development Extensions in Westminster

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

• Listed building restrictions
• Permitted development rights removed by planning condition
• Dormer facing road
• Materials not matching existing dwelling
• Extension covering more than 50% of garden area
• Article 4 Direction restrictions

Property Types We Advise On in Westminster

• Properties with outbuildings
• Homes subject to Article 4 Directions
• Townhouses
• Corner plot homes
• Chalet-style houses

Frequently Asked Questions

Do conservation areas affect permitted development rights?

Yes. Properties within conservation areas often have additional restrictions, and some permitted development rights may be limited or removed entirely.

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.

Is there a limit on total site coverage?

Yes. Extensions and outbuildings combined must not cover more than 50% of the curtilage of the original house.

What is the maximum rear projection allowed?

Detached houses may extend up to four metres under standard rules, or eight metres with prior approval. Smaller limits apply to other house types.

Can I extend a flat under permitted development?

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

Can I extend my house in a flood zone?

Extensions in flood risk areas may require additional assessments and possibly planning permission.

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