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Permitted25/03490/NMASubmitted over a year agoLoft conversion

1, 4 Eaton Mews West Westminster SW1W 9ET

Amendments to planning permission dated 31 October 2024 (RN 24/00412/FULL) for: 'Redevelopment of 1-4 Eaton Mews West including demolition behind a part retained facade and replacement building comprising ground and first floor with a new part mansard roof level, to provide six residential (Class C3) units, and provision of office (Class E(g)(i)) accommodation. Creation of rear gardens at ground floor level, installation of plant, and other associated works.' NAMELY, to allow the exclusion of a portion of the 'wing' adjoining 93 Elizabeth Street from the development and a reduction in office floorspace; increase in overall GIA due to the reduction in the thickness of the external walls; increased extent of demolition of the part-retained facade; reconfiguration of interiors; alterations to lift overrun; amendements to window and door openings; and, relocation of cycle parking.

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Progress

Submitted
22 May 2025
— completed
Validated
22 May 2025
— completed
Consultation
30 Jul 2025
— completed
Target date
19 Jun 2025
— completed
Decided
17 Sept 2025
— completed

Application details

Reference
25/03490/NMA
Local authority
Westminster
Postcode
SW1W 9ET
Ward
KBW_22
Application type
All Other
Property type
Commercial

Key dates

Submitted
22 May 2025
Validated
22 May 2025
Comments close
30 Jul 2025
Target decision
19 Jun 2025
Decided
17 Sept 2025

Estimated project value

£37k–£100k

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

Recently sold nearby

Nothing on this postcode has changed hands in the last two years. The sales below are for pricing rather than a lead.

Homes here go for about £1,738,200 — the median of the last 5 market sales in SW1W 9ET, £186,800 to £3,269,500.

Contains HM Land Registry data © Crown copyright and database right 2023. This data is licensed under the Open Government Licence v3.0. Sales are matched by postcode, not by property, so a sale listed here may be a neighbouring address. England and Wales only.

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.

Nearby applications