Westminster
Westminster/26/00535/NMA
12 Chester Street London SW1X 7BB
- Reference
- Westminster/26/00535/NMA
- Authority
- Westminster
- Application type
- Non-material amendment
- Address
- 12 Chester Street London SW1X 7BB
- Postcode
- SW1X 7BB
- Status
- Decided
- Decision
- Application Permitted
- Received
- 29 Jan 2026
- Validated
- 29 Jan 2026
- Started
- 29 Jan 2026
- Decided
- 16 Mar 2026
- Source council
- Westminster
- Council source record
- View public record
- Public data licence
- Open Government Licence v3.0
- Record updated
- 1 Aug 2026
- SEO index generated
- 2 Aug 2026
Location
Approximate location
Proposal
Amendment to planning permission dated 24th July 2025 (RN 24/05883/FULL) for the Excavation of a new basement level. Replacement of existing rear extension at first, second and third with a new rear extension (first to third floor level) with flat roof. Erection of an extension at rear ground floor level. Removal of the existing kitchen rooflight and extension of existing terrace at first floor level. Replacement of existing windows and French doors with new; NAMELY to amend the description of development to omit 'Excavation of a new basement level'; amended description of development to read as follows: 'Replacement of existing rear extension at first, second and third with a new rear extension (first to third floor level) with flat roof. Erection of an extension at rear ground floor level. Removal of the existing kitchen rooflight and extension of existing terrace at first floor level. Replacement of existing windows and French doors with new'.
Key dates
- Received 29 Jan 2026
- Validated 29 Jan 2026
- Started 29 Jan 2026
- Decided 16 Mar 2026
Planning history / related applications
No related planning applications have been identified in the current public OGL dataset.
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Source: public planning application data from Westminster, reused under the Open Government Licence v3.0. View the council source record. Council documents and drawings are not republished on plotEdge.