Smith Square City Of Westminster SW1P 3HL
To replace the existing flat roof covering which has failed and is letting rainwater saturate the existing insulation with a replacement flat roof covering. To raise the rear parapet wall upwards by 150mm (2 brick courses) to enable installation of insulation thickness to meet the building regulations. To replace the services room flat roof covering (non insulated) with an insulated roof covering as per main flat roof. To replace the defective ridge tiles to to front mansard roof. To apply liquid roof sealant to the 3no front dormers and the front back gutter.
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Progress
Application details
- Reference
- 23/08171/FULL
- Local authority
- Westminster
- Postcode
- SW1P 3HL
- Ward
- SJW_22
- Application type
- All Other
- Property type
- Flat
Key dates
- Submitted
- 21 Jan 2025
- Validated
- 21 Jan 2025
- Comments close
- 12 Mar 2025
- Target decision
- 18 Mar 2025
- Decided
- 13 Mar 2025
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.
- FLAT 2, 40 SMITH SQUARE, LONDON, SW1P 3HLFlat or maisonette · Leasehold · £2,000,00017 months ago26 Mar 2025
- FLAT 3, 37 SMITH SQUARE, LONDON, SW1P 3HLFlat or maisonette · Leasehold · £1,200,0003 years ago30 Sept 2022
- FLAT 4, 37 SMITH SQUARE, LONDON, SW1P 3HLFlat or maisonette · Leasehold · £1,140,0005 years ago30 Jun 2021
- FLAT 8, 37 SMITH SQUARE, LONDON, SW1P 3HLFlat or maisonette · Leasehold · £680,0005 years ago23 Jun 2021
- LOWER GROUND, GROUND AND SECOND FLOOR, 34 SMITH SQUARE, LONDON, SW1P 3HLOther · Leasehold · Not a standard market sale · £161,0005 years ago2 Mar 2021
- FLAT 2, 37 SMITH SQUARE, LONDON, SW1P 3HLFlat or maisonette · Leasehold · £1,100,0005 years ago9 Dec 2020
- FLAT 5, 37 SMITH SQUARE, LONDON, SW1P 3HLFlat or maisonette · Leasehold · £1,010,1235 years ago6 Nov 2020
- 36 SMITH SQUARE, LONDON, SW1P 3HLTerraced · £14,857,6006 years ago1 Nov 2019
Homes here go for about £1,140,000 — the median of the last 7 market sales in SW1P 3HL, £680,000 to £14,857,600.
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
- 37 Smith Square Westminster SW1P 3HLPermittedNext door
- 40 Smith Square Westminster SW1P 3HLPermittedNext door
- WestminsterPermittedNext door
- 36 Smith Square Westminster SW1P 3HLRefusedNext door
- 36 Smith Square Westminster SW1P 3HLPermittedNext door
- 36 Smith Square Westminster SW1P 3HLPermittedNext door