1 Culross Street London W1K 2DL Data via plota.co.uk
Proposal
Excavation of a basement beneath 1A Culross Street, installation of two vents at roof level and erection of a single storey rear infill extension, all to enlarge dwellinghouse (Class C3). [SITE INCLUDES 1A CULROSS STREET]. Data via plota.co.uk
Application progress
Approved on 3 Mar 2026 · Delegated Decision · Last checked 31 Oct 2026
Documents 49
Decision & officer reports 2
Statements & assessments 18
Plans & drawings 8
Application forms 1
Consultation & comments 2
Other documents 18
Site constraints 11
Show all 48 with distances
- 13 m4, Culross Street W1Grade II
- 29 m7, Upper Grosvenor Street W1Grade II
- 29 mUnited States of America EmbassyGrade II
- 30 m9, Upper Grosvenor Street W1Grade II
- 31 m6, Upper Grosvenor Street W1Grade II
- 33 mNumber 49 and 50 and Attached RailingsGrade II
- 33 m52, Upper Brook Street W1Grade II
- 33 m60, Park Street W1Grade II
- 34 m66 and 68, Park Street W1Grade II
- 36 m70, Park Street W1Grade II
- 37 m58, Park Street W1Grade II
- 41 m72, Park Street W1Grade II*
- 42 m74, Park Street W1Grade II
- 42 m12, Upper Grosvenor Street W1Grade II
- 48 m76, Park Street W1Grade II
- 49 m53, Upper Brook Street W1Grade II
- 53 m37-43 Park StreetGrade II
- 55 m78, Park Street W1Grade II
- 58 m48, Upper Brook Street W1Grade II
- 60 m47, Upper Brook Street W1Grade II
- 64 m44-50 Park Street and 37 Upper Grosvenor StreetGrade II
- 70 m44, Upper Grosvenor Street W1Grade II
- 76 m45, Upper Grosvenor Street W1Grade II
- 79 m15, Upper Grosvenor Street W1Grade II
- 83 m7, Upper Brook Street W1Grade II
- 86 m16, Upper Grosvenor Street W1Grade II
- 92 m48, Upper Grosvenor Street W1Grade II
- 96 m24, Culross Street W1Grade II
- 97 m17, Upper Grosvenor Street W1Grade II
- 99 m3, Upper Brook Street W1Grade II
- 106 m18, Upper Grosvenor Street W1Grade II
- 114 m38, Upper Brook Street W1Grade II
- 114 m22 AND 23, GROSVENOR SQUARE W1 (See details for further address information)Grade II
- 115 mNumber 18 and Attached RailingsGrade II
- 116 m19, Upper Grosvenor Street W1Grade II
- 117 m45, Reeves Mews W1Grade II
- 121 mNumber 19 and Attached RailingsGrade II
- 122 m37 Upper Brook Street and attached railingsGrade II
- 128 m20, Upper Brook Street W1Grade II
- 132 mPolice Public Callbox to North East of American EmbassyGrade II
- 133 m21, Upper Grosvenor Street W1Grade II
- 134 m36-42, Park Street W1Grade II
- 135 m36, Upper Brook Street W1Grade II*
- 136 m21, Upper Brook Street W1Grade II
- 143 mNumber 22 and Attached RailingsGrade II
- 145 m35, Upper Brook Street W1Grade II
- 149 m23, Upper Grosvenor Street W1Grade II
- 150 mDudley HouseGrade II*
Checked on 1 November 2026. 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.
Sales history 1
Last sold for £750,000 in March 1998. Terraced house, leasehold.
Sale prices from HM Land Registry's price paid record, matched to this application by its address.
Building
From the energy performance certificate lodged in June 2022, the latest held for this property. The building may have changed since. View the certificate
Every application in Westminster - and every UK council - as a live feed, an API, or a bulk CSV export.
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Important details
- Council
- Westminster
- Application type
- Full Planning Permission Application
- Postcode
- W1K 2DL
- Received
- 14 Jul 2025
- Validated
- 20 Aug 2025
- Ward
- West End
- Case officer
- Show
- Target decision
- 3 Mar 2026
- Decision
- Application Permitted
- Decision date
- 3 Mar 2026
- Decision level
- Delegated Decision
- Applicant
- Show
- Agent
- Maddox Planning
- Freehold owner
- Show
How this decision compares
Decided in 195 days from validation, 119 days slower than Westminster's median of 76 for full applications. Approved, as 86% of full applications here are.
Plota live figures for full applications decided by Westminster in the last twelve months, from validation. Westminster decision record →
Public comments
No public comments yet.
14 neighbours consulted · Last counted 31 Oct 2026
Consultation & key dates
- Alt. reference
- PP-14156650
- Planning Portal ref
- PP-14156650
- Comments by
- 1 Oct 2025
- Site or press notice
- 28 Aug 2025
- 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.
Sale prices: Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0.
Freehold boundary: © Crown copyright and database rights 2026, HM Land Registry. Polygons © Crown copyright and database rights 2026 Ordnance Survey 100026316. Conditions of use
Energy performance: Energy performance certificates from the Energy Performance of Buildings Register, Ministry of Housing, Communities and Local Government. Contains public sector information licensed under the Open Government Licence v3.0. © Crown copyright 2026.
Freehold owner: Information produced by HM Land Registry. © Crown copyright 2026. Source: HM Land Registry, UK and overseas companies that own property in England and Wales, September 2026 release.
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1 Culross Street London W1K 2DL
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Freehold owner, on paid plans
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