57 Eaton Square Westminster SW1W 9BG
Amendments to planning permission dated 4 August 2014 (RN:14/04167/FULL) for Amalgamation of 2 x 2 bed flats on lower ground and ground floor levels to create a 3 bed maisonette; installation of an external metal spiral staircase on the rear elevation to access the garden from ground floor level, and alterations to rear windows (site includes Flats 57 and 58a). Namely, amendment to rear steel staircase and minor internal alterations.
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Progress
Application details
- Reference
- 26/03176/NMA
- Local authority
- Westminster
- Postcode
- SW1W 9BG
- Ward
- KBW_22
- Application type
- All Other
- Property type
- Flat
Key dates
- Submitted
- 18 May 2026
- Validated
- 18 May 2026
- Target decision
- 15 Jun 2026
- Decided
- 5 Jun 2026
Estimated project value
£5k–£16k
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: FMB 2026 double glazing guide, 3-bed semi full replacement.
Recently sold nearby
New owners, recently moved in. First work on a house usually follows within months of completing. 3 recent sales are listed below.
- 57 EATON SQUARE, LONDON, SW1W 9BGFlat or maisonette · Leasehold · Not a standard market sale · £4,380,0005 months ago27 Mar 2026
- FLAT J, 61 EATON SQUARE, LONDON, SW1W 9BGFlat or maisonette · Leasehold · £3,000,00017 months ago11 Mar 2025
- FLAT A, 61 EATON SQUARE, LONDON, SW1W 9BGFlat or maisonette · Leasehold · £1,250,00019 months ago30 Jan 2025
- FLAT C, 61 EATON SQUARE, LONDON, SW1W 9BGFlat or maisonette · Leasehold · Not a standard market sale · £3,000,0005 years ago23 Sept 2020
- FLAT E, 58 EATON SQUARE, LONDON, SW1W 9BGFlat or maisonette · Leasehold · £950,0006 years ago9 Apr 2020
- FLAT 58D, 57 - 59 EATON SQUARE, LONDON, SW1W 9BGFlat or maisonette · Leasehold · Not a standard market sale · £3,350,0006 years ago1 Nov 2019
- FLAT B, 61 EATON SQUARE, LONDON, SW1W 9BGFlat or maisonette · Leasehold · £7,000,0007 years ago28 Jun 2019
- FLAT E, 58 EATON SQUARE, LONDON, SW1W 9BGFlat or maisonette · Leasehold · £320,0008 years ago2 Jul 2018
Homes here go for about £1,250,000 — the median of the last 5 market sales in SW1W 9BG, £320,000 to £7,000,000.
Contains HM Land Registry data © Crown copyright and database right 2026. 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
- 58 Eaton Square Westminster SW1W 9BGPendingNext door
- 58 Eaton Square Westminster SW1W 9BGPendingNext door
- 58 Eaton Square Westminster SW1W 9BGRefusedNext door
- 58 Eaton Square Westminster SW1W 9BGPermittedNext door
- 57 Eaton Square Westminster SW1W 9BGPendingNext door
- WestminsterPermittedNext door