Westminster
Westminster/26/02687/NMA
43 - 45 Portman Square London W1H 6LY
- Reference
- Westminster/26/02687/NMA
- Authority
- Westminster
- Application type
- Non-material amendment
- Address
- 43 - 45 Portman Square London W1H 6LY
- Postcode
- W1H 6LY
- Status
- Decided
- Decision
- Application Permitted
- Received
- 22 Apr 2026
- Validated
- 22 Apr 2026
- Started
- 22 Apr 2026
- Decided
- 15 May 2026
- Source council
- Westminster
- Council source record
- View public record
- Public data licence
- Open Government Licence v3.0
- Record updated
- 18 Jul 2026
- SEO index generated
- 24 Jul 2026
Location
Approximate location - Contains OS data © Crown copyright and database right
Proposal
Amendments to planning permission dated 22nd April 2026 (RN:25/06153/FULL) for: Variation of Condition 1 of planning permission dated 7th April 2025 (RN: 24/04987/FULL) for: Partial demolition of the existing roof and removal of plant equipment; construction of a roof extension providing new office (Class E) floorspace with associated external amenity spaces and plant equipment; refurbishment of the existing building, including infilling of the existing atrium; alterations to the existing façade; provision of cycle parking spaces and end of journey facilities, and all associated and ancillary works namely, amendments to mansard roof and rear façades; alterations to skylights and access doors to terraces; alterations to Portman Mews and Orchard Street elevations and to main entrance; alterations to louvres and to internal layout.
Key dates
- Received 22 Apr 2026
- Validated 22 Apr 2026
- Started 22 Apr 2026
- Decided 15 May 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.