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Permitted25/01675/FULLSubmitted over a year agoLoft conversion

6, 7 Grosvenor Place Westminster

Variation of Conditions 1,18, 20, 22, and 23 of planning permission dated 4th June 2019 (RN: 19/01872/FULL) (as amended by non-material amendment dated 6 August 2019 RN: 19/05426/NMA) for: Alterations and extensions to the buildings in connection with their use as a private members' club (sui generis) and a cafe (Class A3), works involve the partial demolition and rebuild of the Halkin Street mews facade, replacement Headfort Place mews facade and new mews roof mansard, erection of a single storey extension to the rear of the main building at the second floor level, the installation of external terraces at third and fifth floors, roof plant enclosures, openings to light well elevations, new metal railing behind lowered parapet and to the new terrace over the new extension, alteration of vaults and associated works. NAMELY, new plant and enclosure at second floor; provision of an opening to the third-floor terrace; a flue enclosure, plant and air intake and extract at roof level; amendments to operational management plan, servicing management plan, opening hours and Club's occupancy profile.

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Progress

Submitted
12 Mar 2025
— completed
Validated
12 Mar 2025
— completed
Consultation
16 Apr 2025
— completed
Target date
7 May 2025
— completed
Decided
18 Sept 2025
— completed

Application details

Reference
25/01675/FULL
Local authority
Westminster
Ward
KBW_22
Application type
All Other
Property type
House

Key dates

Submitted
12 Mar 2025
Validated
12 Mar 2025
Comments close
16 Apr 2025
Target decision
7 May 2025
Decided
18 Sept 2025

Estimated project value

£28k–£75k

Typical UK cost for this job type, at UK average rates (2026). Estimated from the proposal description — planning applications do not state build cost. Source: Checkatrade 2026 loft conversion cost guide.

Planning constraints

No designations recorded at this location. This is not a formal search — always confirm with the local authority before relying on it.

Designations from planning.data.gov.uk, Open Government Licence v3.0. Indicative only — not a formal local authority search.

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