74 Cumberland Street London SW1V 4NA Data via plota.co.uk
Proposal
Replacement of existing windows with new heritage timber box sash windows Data via plota.co.uk
Application progress
Approved on 21 Jul 2026 · Complex Delegated Decision · Last checked 21 Jul 2026
Documents 27
Decision & officer reports 2
Statements & assessments 3
Plans & drawings 10
Application forms 1
Consultation & comments 2
Other documents 9
Site constraints 8
Checked on 11 September 2026. Historic England, the Environment Agency, Natural England and council datasets, Open Government Licence. A boundary can run through a site and the council holds the definitive record: confirm with the council before relying on this.
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Important details
- Council
- Westminster
- Application type
- Full Planning Permission Application
- Postcode
- SW1V 4NA
- Received
- 7 Nov 2025
- Validated
- 1 Apr 2026
- Ward
- Pimlico South
- Case officer
- Show
- Target decision
- 27 May 2026
- Decision
- Application Permitted
- Decision date
- 21 Jul 2026
- Decision level
- Complex Delegated Decision
- Agent
- Retrofit Design Services (UK)
How this decision compares
Decided in 111 days from validation, 58 days slower than Westminster's median of 53 for extensions. Approved, as 87% of extensions here are.
Plota live figures for extensions decided by Westminster in the last twelve months, from validation. Westminster decision record →
Consultation & key dates
- Alt. reference
- PP-14463298
- Site or press notice
- 22 Apr 2026
- Env. assessment
- No
Historical activity at this location
25 nearby applications on record - archival context, not part of the live application.
Nearby activity
Westminster is slower than most councils at deciding householder applications, ranking #258 out of 296. Only 28% of applications have the time limit extended, well below the 41% national average - the council usually decides on time. Westminster is also one of the strictest councils - it refuses more householder applications than almost any other, with only 81% approved vs 90% nationally.
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74 Cumberland Street London SW1V 4NA
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