Westminster
Westminster/26/02952/NMA
17 William Mews London SW1X 9HF
- Reference
- Westminster/26/02952/NMA
- Authority
- Westminster
- Application type
- Non-material amendment
- Address
- 17 William Mews London SW1X 9HF
- Postcode
- SW1X 9HF
- Status
- Decided
- Decision
- Application Refused
- Received
- 5 May 2026
- Validated
- 12 May 2026
- Started
- 12 May 2026
- Decided
- 9 Jun 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
Amendments to planning permission dated 12 June 2025 (RN: 24/07507/FULL) for the erection of a roof extension and alterations to existing front elevation and fenestration. Excavation of a new basement below part existing dwellinghouse.; NAMELY amendments to ground floor front elevation including amendments to the approved window openings, together with associated internal reconfiguration works.
Key dates
- Received 5 May 2026
- Validated 12 May 2026
- Started 12 May 2026
- Decided 9 Jun 2026
Planning history / related applications
No related planning applications have been identified in the current public OGL dataset.
Inside plotEdge
Go beyond the public record
This page is the public OGL record. plotEdge adds the private intelligence layer for this site - open it in the app to unlock:
- Ownership & title Registered owner and title from HM Land Registry.
- Viability & build potential Site scoring and development upside.
- Constraints Flood risk, green belt, conservation areas and designations.
- Approval signal Planning risk and approval-likelihood analysis.
- Comparable applications Decisions on similar nearby sites, side by side.
- Status alerts Get notified the moment this application changes.
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.