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Permitted25/08805/FULLSubmitted 9 months agoBasement

56 South Eaton Place Westminster SW1W 9JJ

Alterations to front façade including replacement windows and garage door with a window; excavation and enlargement of basement including formation of front lightwell with external staircase; rear alterations including raising rear closet wing at second floor level, replacement windows, balustrade and existing terrace doors; and infill extension at roof level.

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Progress

Submitted
3 Dec 2025
— completed
Validated
3 Dec 2025
— completed
Consultation
16 Mar 2026
— completed
Target date
28 Jan 2026
— completed
Decided
29 May 2026
— completed

Application details

Reference
25/08805/FULL
Local authority
Westminster
Postcode
SW1W 9JJ
Ward
KBW_22
Application type
All Other
Property type
House

Key dates

Submitted
3 Dec 2025
Validated
3 Dec 2025
Comments close
16 Mar 2026
Target decision
28 Jan 2026
Decided
29 May 2026

Estimated project value

£54k–£81k

Based on the 10.0m² of floor area stated in the application, at inner London rates (2026). Source: trade estimate, basement £4,000-£6,000/m².

Floor area gained: 10

Recently sold nearby

Inside the two years most owners do their major work — kitchens, bathrooms, rewires and lofts.

Homes here go for about £4,725,000 — the median of the last 8 market sales in SW1W 9JJ, £3,000,000 to £9,200,000.

Contains HM Land Registry data © Crown copyright and database right 2025. 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.

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