47 Marsham Street Westminster SW1P 3DR
Alterations and extensions at seventh floor level including new terraces, PVs, green roofs and mechanical plant, in connection with the creation three additional residential units (Class C3).
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Progress
Application details
- Reference
- 25/03820/FULL
- Local authority
- Westminster
- Postcode
- SW1P 3DR
- Ward
- SJW_22
- Application type
- All Other
- Property type
- House
Key dates
- Submitted
- 4 Jul 2025
- Validated
- 4 Jul 2025
- Comments close
- 13 Oct 2025
- Target decision
- 29 Aug 2025
- Decided
- 16 Mar 2026
Estimated project value
£800k–£1335k
Based on the 330m² of floor area stated in the application, at inner London rates (2026). Source: FMB / Checkatrade 2026, single-storey extension £1,800-£3,000/m².
Floor area gained: 330m²
Recently sold nearby
Inside the two years most owners do their major work — kitchens, bathrooms, rewires and lofts. 8 recent sales are listed below.
- APARTMENT 115, ROMNEY HOUSE, 47 MARSHAM STREET, LONDON, SW1P 3DRFlat or maisonette · Leasehold · £1,180,0009 months ago16 Jan 2026
- APARTMENT 306, ROMNEY HOUSE, 47 MARSHAM STREET, LONDON, SW1P 3DRFlat or maisonette · Leasehold · £680,00012 months ago13 Oct 2025
- APARTMENT 116, ROMNEY HOUSE, 47 MARSHAM STREET, LONDON, SW1P 3DRFlat or maisonette · Leasehold · £800,00012 months ago6 Oct 2025
- APARTMENT 208, ROMNEY HOUSE, 47 MARSHAM STREET, LONDON, SW1P 3DRFlat or maisonette · Leasehold · Not a standard market sale · £850,00016 months ago18 Jun 2025
- APARTMENT 701, ROMNEY HOUSE, 47 MARSHAM STREET, LONDON, SW1P 3DRFlat or maisonette · Leasehold · £3,300,00017 months ago22 May 2025
- APARTMENT 201, ROMNEY HOUSE, 47 MARSHAM STREET, LONDON, SW1P 3DRFlat or maisonette · Leasehold · £887,00017 months ago20 May 2025
- APARTMENT 307, ROMNEY HOUSE, 47 MARSHAM STREET, LONDON, SW1P 3DRFlat or maisonette · Leasehold · £1,000,00017 months ago14 May 2025
- APARTMENT 217, ROMNEY HOUSE, 47 MARSHAM STREET, LONDON, SW1P 3DRFlat or maisonette · Leasehold · £900,00018 months ago28 Mar 2025
Homes here go for about £900,000 — the median of the last 7 market sales in SW1P 3DR, £680,000 to £3,300,000.
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
- 47 Marsham Street Westminster SW1P 3DRPermittedNext door
- ROMNEY HOUSE, 49-57 MARSHAM STREET Westminster SW1PermittedNext door
- 47 Marsham Street Westminster SW1P 3DRWithdrawnNext door
- ROMNEY HOUSE, 49-57 MARSHAM STREET Westminster SW1PermittedNext door
- 47 Marsham Street Westminster SW1P 3DRPermittedAdjoining
- 47 Marsham Street Westminster SW1P 3DRWithdrawnAdjoining