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Permitted21/08450/FULLSubmitted 4 years agoConservatory

4 Wilton Crescent Westminster SW1X 8RN

Excavation of a single storey basement beneath part of 4 Wilton Crescent, part of courtyard and mews building at 6 Kinnerton Street; Erection of two storey conservatory at rear lower ground and ground floor levels, closet wing extension at first and second floor level, removal of pergola on rear first floor terrace, installation of plant machinery at roof level and front vaults at 4 Wilton Crescent. Changes to rear fenestration at 6 Kinnerton Street and associated internal and external alterations.

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Map of the site

Progress

Submitted
20 Dec 2021
— completed
Validated
20 Dec 2021
— completed
Consultation
18 Jan 2022
— completed
Target date
14 Feb 2022
— completed
Decided
28 Feb 2022
— completed

Application details

Reference
21/08450/FULL
Local authority
Westminster
Postcode
SW1X 8RN
Ward
KBA_02
Application type
All Other
Property type
House

Key dates

Submitted
20 Dec 2021
Validated
20 Dec 2021
Comments close
18 Jan 2022
Target decision
14 Feb 2022
Decided
28 Feb 2022

Estimated project value

£14k–£41k

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: trade estimate.

Floor area gained: 198m²

Recently sold nearby

Inside the two years most owners do their major work — kitchens, bathrooms, rewires and lofts. 2 recent sales are listed below.

Homes here go for about £6,295,000 — the median of the last 4 market sales in SW1X 8RN, £1,247,000 to £34,000,000.

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.

Nearby applications