14 Seymour Street London W1H 7HT Data via plota.co.uk
Proposal
Replacement of the existing roof asphalt roof to the rear terrace of the ground floor flat with bitumen roofing felt including porcelain paving tiles on pedestals. Data via plota.co.uk
Application progress
Approved on 4 Sept 2026 · Delegated Decision · Last checked 5 Sept 2026
Documents 18
Decision & officer reports 2
Statements & assessments 2
Plans & drawings 8
Application forms 2
Site constraints 12
Show the other 20 with distances
- 17 m1, New Quebec Street W1Grade II
- 22 m4, New Quebec Street W1Grade II
- 27 m11-19, SEYMOUR STREET W1 (See details for further address information)Grade II
- 36 m22-36, Seymour Street W1Grade II
- 36 m21-25, New Quebec Street W1Grade II
- 42 m7, New Quebec Street W1Grade II
- 52 mNorthern Part of Mostyn HotelGrade II
- 55 m14-19, New Quebec Street W1Grade II
- 65 mChurch of the AnnuciationGrade II*
- 69 mWestern Marble Arch Synagogue (1 Wallenberg Place and 13 Quebec Mews), 24 Great Cumberland Place and 38 Seymour Street, with area railings, and standard lanterns to 38 Seymour StreetGrade II
- 77 mMarylebone War MemorialGrade II
- 81 m66-69, Upper Berkeley Street W1Grade II
- 90 mThe Montcalm Hotel (2 Wallenberg Place) and 42 Great Cumberland Place, with area railingsGrade II
- 116 m11 and 12, Upper Berkeley Street W1Grade II
- 118 m10, Portman Street W1Grade II
- 131 mRoyal Intitute of British Architects Drawings CollectionGrade I
- 134 m13 to 15, Upper Berkeley Street W1Grade II
- 139 mHome House (Courtauld Institute)Grade I
- 146 m16, Upper Berkeley Street W1Grade II
- 149 m20, Montagu 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.
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
- Listed Building Consent Application
- Postcode
- W1H 7HT
- Received
- 20 Jul 2026
- Validated
- 20 Jul 2026
- Ward
- Marylebone
- Case officer
- Show
- Target decision
- 14 Sept 2026
- Decision
- Application Permitted
- Decision date
- 4 Sept 2026
- Decision level
- Delegated Decision
- Applicant
- Show
- Agent
- MDB Associates
How this decision compares
Decided in 46 days from validation, 9 days faster 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 →
Public comments
No public comments yet.
Last counted 5 Sept 2026
Consultation & key dates
- Alt. reference
- PP-15031439
- Planning Portal ref
- PP-15031439
- Comments by
- 2 Sept 2026
- Site or press notice
- 12 Aug 2026
- Env. assessment
- No
Historical activity at this location
27 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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14 Seymour Street London W1H 7HT
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