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Permitted25/02147/NMASubmitted over a year agoRear extension

17 Belgrave Square Westminster SW1X 8PG

Amendments to planning permission dated 13 December 2019 (RN: 18/01324/FULL) for 'Demolition of annexe building and replacement with rear extensions to 17 Belgrave Square and excavations to create pool hall extension under garden of 17 Belgrave Square and basement beneath mews property; all in connection with the use of the mews property and 17 Belgrave Square as two single family dwelling houses'. Namely, to allow layout changes to 17 Belgrave Square and provision of cycle and waste stores.

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Progress

Submitted
31 Mar 2025
— completed
Validated
31 Mar 2025
— completed
Consultation
—
— completed
Target date
28 Apr 2025
— completed
Decided
30 May 2025
— completed

Application details

Reference
25/02147/NMA
Local authority
Westminster
Postcode
SW1X 8PG
Ward
KBW_22
Application type
All Other
Property type
House

Key dates

Submitted
31 Mar 2025
Validated
31 Mar 2025
Target decision
28 Apr 2025
Decided
30 May 2025

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

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

Contains HM Land Registry data © Crown copyright and database right 2024. 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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