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Permitted21/02653/NMASubmitted 5 years agoLoft conversion

Westminster

Amendments to planning permission dated 19 November 2018 (RN: 18/07021) for: Demolition of the rear facade of Henrietta House and the erection of a seven-storey extension at above ground floor level to create new office floorspace, installation of a deck over the existing servicing yard to the rear, relocation of the existing fire escape stair from the rear of 91- 95 Wimpole street, demolition of part of the existing plant enclosure at roof level of Henrietta House and erection of new office floorspace, external alterations to the ground floor level elevations of Henrietta House on Welbeck, Wimpole Street and Henrietta Place, installation of photovoltaic panels at roof level, installation of a new green walls to the rear and side elevations to the new rear extension to Henrietta House and all associated works (Phase 1). Removal of the existing plant enclosure of 91-95 Wimpole Street for the erection of a two-storey roof extension and associated works (Phase 2), all in connection with the existing office use (Use Class B1) (SITE INCLUDES 91-95 WIMPOLE STREET) NAMELY, height of zinc cladding on south elevation reduced in height by 0.2m, areas of approved zinc cladding and rendered walls omitted and existing material retained, extent of 8th floor plant enclosure extended to the north by 0.4m, UKPN entrance reconfigured, new decorative screen to rear courtyard elevation, rear wall of new lift to be clad in white painted steel instead of white render.

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Progress

Submitted
22 Apr 2021
— completed
Validated
22 Apr 2021
— completed
Consultation
— completed
Target date
20 May 2021
— completed
Decided
20 May 2021
— completed

Application details

Reference
21/02653/NMA
Local authority
Westminster
Ward
MHA_02
Application type
All Other
Property type
Commercial

Key dates

Submitted
22 Apr 2021
Validated
22 Apr 2021
Target decision
20 May 2021
Decided
20 May 2021

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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