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Permitted0203569Rear extension

23 Lower Belgrave Street Westminster SW1W 0NR

Erection of an extension within existing canopy at roof level to create additional office floorspace and the creation of two self-contained residential units.

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Progress

Submitted
— completed
Validated
— completed
Consultation
— completed
Target date
— completed
Decided
13 Mar 2003
— completed

Application details

Reference
0203569
Local authority
Westminster
Postcode
SW1W 0NR
Ward
WARWICK
Application type
All Other
Property type
Commercial

Key dates

Decided
13 Mar 2003

Estimated project value

£41k–£75k

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: MyJobQuote / Checkatrade 2026, ~20m² at £1,800-£3,000/m².

Recently sold nearby

New owners, recently moved in. First work on a house usually follows within months of completing. 8 recent sales are listed below.

Homes here go for about £1,800,000 — the median of the last 5 market sales in SW1W (the wider postcode district), £330,000 to £11,000,000.

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