20 Manchester Square Westminster W1U 3PZ
Amendments to planning permission dated 04 September 2020 (RN: 20/03854/FULL) for, 'Demolition and replacement of existing fourth floor, demolition of existing plant room, and erection of a single storey roof extension at fifth floor and rear extension at second to fifth floor levels in connection with existing office (Class B1) use, provision of new main office entrance, flexible use of part ground and basement floor for either retail or office use (Class A1/B1), creation of roof terrace at fifth floor level, provision of cycle parking spaces and facilities, roof plant and associated external alterations, including replacement windows'; NAMELY, to reconfigure the basement level shower and cycle parking facilities.
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Progress
Application details
- Reference
- 25/08754/NMA
- Local authority
- Westminster
- Postcode
- W1U 3PZ
- Ward
- MBW_22
- Application type
- All Other
- Property type
- Commercial
Key dates
- Submitted
- 2 Dec 2025
- Validated
- 2 Dec 2025
- Target decision
- 30 Dec 2025
- Decided
- 13 Jan 2026
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
New owners, recently moved in. First work on a house usually follows within months of completing. 8 recent sales are listed below.
- FLAT 2, 10 - 12 CRAWFORD STREET, LONDON, W1U 6AZFlat or maisonette · Leasehold · £690,0003 months ago20 Jul 2026
- 159 MONTAGU MANSIONS, LONDON, W1U 6LQFlat or maisonette · Leasehold · £1,350,0003 months ago3 Jul 2026
- 97, BICKENHALL MANSIONS BICKENHALL STREET, LONDON, W1U 6BSFlat or maisonette · Leasehold · £1,650,0004 months ago26 Jun 2026
- FLAT B, 34 GEORGE STREET, LONDON, W1U 7DPFlat or maisonette · Leasehold · £1,360,0004 months ago16 Jun 2026
- FLAT C, 34 GEORGE STREET, LONDON, W1U 7DPFlat or maisonette · Leasehold · £1,490,0004 months ago3 Jun 2026
- THIRD FLOOR FLAT 5, 36 NOTTINGHAM PLACE, LONDON, W1U 5NTFlat or maisonette · Leasehold · £827,5004 months ago29 May 2026
- FLAT 9, 30 BLANDFORD STREET, LONDON, W1U 4BYFlat or maisonette · Leasehold · £1,500,0005 months ago19 May 2026
- 61, LUXBOROUGH TOWER LUXBOROUGH STREET, LONDON, W1U 5BNFlat or maisonette · Leasehold · £685,0005 months ago18 May 2026
Homes here go for about £1,355,000 — the median of the last 8 market sales in W1U (the wider postcode district), £685,000 to £1,650,000.
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
- 20 Manchester Square Westminster W1U 3PZPermittedNext door
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