15 Halkin Mews Westminster SW1X 8JZ
Variation of Conditions 1,3 and 8 of planning permission dated 7th October 2021 (RN 21/03191/FULL) for the Erection of mansard roof with rooflights and photovoltaics over; provision of roof terrace at new second floor level; opening up blind windows at second floor level; replacement garage doors; new entrance door location; replacement windows with slimline double glazing; installation of air condenser unit enclosed within an acoustic louvred panel at roof level. NAMELY, to amend roof design and finish to include single sloped roof profile falling to rear of property and new asphalt roof to top of mansard.
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Progress
Application details
- Reference
- 22/07629/FULL
- Local authority
- Westminster
- Postcode
- SW1X 8JZ
- Ward
- KBW_22
- Application type
- All Other
- Property type
- House
Key dates
- Submitted
- 23 Nov 2022
- Validated
- 23 Nov 2022
- Comments close
- 18 Jan 2023
- Target decision
- 18 Jan 2023
- Decided
- 2 Feb 2023
Estimated project value
£37k–£100k
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: Checkatrade 2026 loft conversion cost guide.
Recently sold nearby
Inside the two years most owners do their major work — kitchens, bathrooms, rewires and lofts.
- 4 HALKIN MEWS, LONDON, SW1X 8JZTerraced · £3,000,00019 months ago6 Feb 2025
- 15 HALKIN MEWS, LONDON, SW1X 8JZTerraced · Leasehold · £8,468,4392 years ago21 Jun 2024
- 15 HALKIN MEWS, LONDON, SW1X 8JZTerraced · Leasehold · Not a standard market sale · £4,300,0004 years ago8 Aug 2022
- 2 HALKIN MEWS, LONDON, SW1X 8JZTerraced · £2,720,0004 years ago29 Jul 2022
- 4 HALKIN MEWS, LONDON, SW1X 8JZTerraced · £1,400,0005 years ago28 Jun 2021
- 4 HALKIN MEWS, LONDON, SW1X 8JZTerraced · Not a standard market sale · £1,650,0009 years ago30 Jun 2017
- 3 HALKIN MEWS, LONDON, SW1X 8JZFlat or maisonette · Leasehold · £1,920,00020 years ago26 May 2006
- 16 HALKIN MEWS, LONDON, SW1X 8JZTerraced · Leasehold · £950,00021 years ago29 Oct 2004
Homes here go for about £2,320,000 — the median of the last 6 market sales in SW1X 8JZ, £950,000 to £8,468,439.
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
- 15 Halkin Mews Westminster SW1X 8JZPermittedNext door
- 15 Halkin Mews Westminster SW1X 8JZWithdrawnNext door
- 15 Halkin Mews Westminster SW1X 8JZPermittedNext door
- 15 Halkin Mews Westminster SW1X 8JZRefusedNext door
- 15 Halkin Mews Westminster SW1X 8JZPermittedNext door
- 15 Halkin Mews Westminster SW1X 8JZPermittedNext door