14 Cavendish Square London W1G 9DB Data via plota.co.uk
Proposal
Detailed drawings of the sliding roof lights above stair leading to roof terrace showing adjoining fabric and key details and detailed study and drawings of the roof light over the stair and its relationship to the existing decorative plasterwork pursuant to condition 3 (5) and (8) of listed building dated 11th March 2026 (RN:25/07887/LBC) Data via plota.co.uk
Application progress
Approved on 19 Oct 2026 · Delegated Decision · Last checked 20 Oct 2026
Documents 30
Decision & officer reports 2
Plans & drawings 20
Application forms 1
Other documents 7
Associated applications 4
- ConditionsDetailed drawings of the sliding roof lights above stair leading to roof terrace showing…This application26/04714/ADLBC
Show 2 more · 1 approved, 1 pending
Site constraints 11
Show the other 39 with distances
- 6 m15, Cavendish Square W1Grade II
- 16 m2, Harley Street W1Grade II
- 16 m16, Cavendish Square W1Grade II
- 20 m4, Harley Street W1Grade II
- 21 m6-14, Harley Street W1Grade II
- 49 m1, 3 and 5, Harley StreetGrade II
- 51 m10a, 11 and 12, Chandos Street W1Grade II
- 54 m13, Harley Street W1Grade II*
- 57 m17, Cavendish Square W1Grade II
- 58 m15 and 17, Harley StreetGrade II
- 63 m18, Cavendish Square W1Grade II*
- 72 mHarcourt HouseGrade II
- 76 m21, Harley Street W1Grade II
- 76 m14 Cavendish PlaceGrade II
- 87 m12, Cavendish Place W1Grade II
- 88 mThe Langham HiltonGrade II
- 88 mNumber 7 and Attached RailingsGrade II
- 90 m25, Harley Street W1Grade II
- 99 m5, Cavendish Square W1Grade II
- 102 m29, Harley StreetGrade II
- 105 m9-13, Queen Anne Street W1Grade II
- 107 m4, Cavendish Square W1Grade II
- 108 mStatue of Lord George Bentinck (at South End of Square Garden)Grade II
- 109 mRoyal College of NursingGrade II
- 116 m2-6, Chandos Street W1Grade II
- 117 m3, Cavendish Square W1Grade II*
- 117 mUniversity of Westminster (formerly Regent Street Polytechnic)Grade II
- 120 m7, Wimpole Street W1Grade II
- 122 m5 and 6, Wimpole Street W1Grade II
- 136 m10, Wimpole Street W1Grade II
- 136 m24, WIGMORE STREET W1 (See details for further address information)Grade II
- 137 m29, Queen Anne Street W1Grade II
- 138 m8, Queen Anne Street W1Grade II
- 139 m1 and 1a, Cavendish Square W1Grade II
- 142 m13-16, Wimpole Street W1Grade II
- 142 mNo 2 and Attached Railings No 4 and Attached RailingsGrade II
- 145 m289-305 and 313-319 Regent Street W1 and 3 Cavendish PlaceGrade II
- 146 m37, Harley Street W1Grade II*
- 150 m31, Queen Anne Street W1Grade II
Checked on 6 October 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 £21,300,000 in January 2025. Other property, freehold.
Sale prices from HM Land Registry's price paid record, matched to this application by its address.
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
- Approval of Details (ADLBC)
- Postcode
- W1G 9DB
- Received
- 14 Jul 2026
- Validated
- 20 Jul 2026
- Ward
- Marylebone
- Case officer
- Show
- Target decision
- 14 Sept 2026
- Decision
- Application Permitted
- Decision date
- 19 Oct 2026
- Decision level
- Delegated Decision
- Applicant
- Show
- Agent
- Sanchez Benton Architects Ltd
Public comments
No public comments yet.
Last counted 20 Oct 2026
Consultation & key dates
- Alt. reference
- PP-15081551
- Planning Portal ref
- PP-15081551
- Env. assessment
- No
Historical activity at this location
40 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.
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
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14 Cavendish Square London W1G 9DB
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