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Westminster Planning Applications: How to Search and Apply

Most of Westminster is in conservation areas.

Westminster Planning Applications: How to Search and Apply Residential Property Services in London

Updated October 2026 · Fraser Bond

Planning · Westminster

Westminster planning

Searchby address
Commenton applications
Conservationareas
Listedbuildings
In short: Westminster City Council publishes planning applications on its online planning search, where you can look up applications by address, postcode or reference, read documents and comment during the consultation period. Applications are made through the national Planning Portal. Much of Westminster lies in conservation areas and it has many listed buildings, so even small changes such as windows, shopfronts or roof terraces often need permission or listed building consent. Pre-application advice is available for a fee.

How to apply

1
Check constraintsConservation area, listing, Article 4.
2
Search historyLook up past applications at the address.
3
Pre-appOptional paid advice.
4
ApplyVia the Planning Portal.
5
TrackFollow the application online.

Frequently asked questions

Do I need permission for new windows in Westminster?

Often, in conservation areas or listed buildings.

How long does a decision take?

Usually 8 weeks for householder applications.

Selling or letting in Westminster?

Talk to our team or get a free valuation.

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