Hyde Park Mansions Cabbell Street London NW1 5BB Data via plota.co.uk
Proposal
Replacement downpipe scheme (pvc for cast iron) together with additional new cast iron downpipes. Installation of addition rooflights to provide safe roof access for maintenance purposes only. Data via plota.co.uk
Application progress
Approved on 22 May 2026 · Delegated Decision · Last checked 8 Jul 2026
Documents 56
Decision & officer reports 2
Statements & assessments 18
Plans & drawings 28
Application forms 2
Other documents 6
Associated applications 2
- Replacement downpipe scheme (pvc for cast iron) together with additional new cast iron downpipes. Installation of addition…
Conditions 2 discharged
Site constraints 11
Checked on 6 October 2026. The pin for this application is the centre of its postcode rather than the building, so distances to nearby designations are measured from the postcode and can be out by the width of the postcode area. Historic England, the Environment Agency, Natural England, the Planning Inspectorate, Transport for London (public transport access levels, Powered by TfL Open Data, OGL v3.0, contains OS data © Crown copyright and database right 2025) 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
- NW1 5BB
- Received
- 20 Mar 2026
- Validated
- 20 Mar 2026
- Ward
- Hyde Park
- Case officer
- Show
- Target decision
- 15 May 2026
- Decision
- Application Permitted
- Decision date
- 22 May 2026
- Decision level
- Delegated Decision
- Applicant
- Show
- Agent
- Maylands Consulting
How this decision compares
Decided in 63 days from validation, 8 days slower than Westminster's median of 55 for extensions. Approved, as 88% 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-14752838
- Planning Portal ref
- PP-14752838
- Comments by
- 13 May 2026
- Site or press notice
- 22 Apr 2026
- Env. assessment
- No
Historical activity at this location
28 previous applications on record - archival context, not part of the live application.
Previous applications at this address
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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Hyde Park Mansions Cabbell Street London NW1 5BB
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