1 Jermyn Street Westminster SW1Y 4UH
Installation of air source heat pumps and condensing units at roof level
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Progress
Application details
- Reference
- 23/05605/FULL
- Local authority
- Westminster
- Postcode
- SW1Y 4UH
- Ward
- SJW_22
- Application type
- All Other
- Property type
- House
Key dates
- Submitted
- 22 Sept 2023
- Validated
- 22 Sept 2023
- Comments close
- 30 Oct 2023
- Target decision
- 17 Nov 2023
- Decided
- 7 Nov 2023
Estimated project value
£11k–£21k
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 / GreenMatch 2026, excluding Boiler Upgrade Scheme grant.
Recently sold nearby
Inside the two years most owners do their major work — kitchens, bathrooms, rewires and lofts. 8 recent sales are listed below.
- FLAT 6, BRAY HOUSE DUKE OF YORK STREET, LONDON, SW1Y 6JXFlat or maisonette · Leasehold · £675,0006 months ago13 Feb 2026
- FLAT 33, BANK CHAMBERS, 25 JERMYN STREET, LONDON, SW1Y 6HRFlat or maisonette · Leasehold · £1,175,0006 months ago12 Feb 2026
- FLAT 8, NORWAY HOUSE, 21 - 24 COCKSPUR STREET, LONDON, SW1Y 5BNFlat or maisonette · Leasehold · £1,405,0037 months ago6 Feb 2026
- FLAT 18, CRUSADER HOUSE, 14 PALL MALL, LONDON, SW1Y 5LUFlat or maisonette · Leasehold · £800,0008 months ago18 Dec 2025
- FLAT 7, 76 JERMYN STREET, LONDON, SW1Y 6NPFlat or maisonette · Leasehold · £450,0009 months ago21 Nov 2025
- APARTMENT 3, 42 PALL MALL, LONDON, SW1Y 5JGFlat or maisonette · Leasehold · £4,050,0009 months ago19 Nov 2025
- 8 OXENDON STREET, LONDON, SW1Y 4EETerraced · Not a standard market sale · £4,200,00016 months ago9 May 2025
- FLAT 19, DALMENY COURT, 8 DUKE STREET, LONDON, SW1Y 6BLFlat or maisonette · Leasehold · Not a standard market sale · £780,00016 months ago30 Apr 2025
Homes here go for about £987,500 — the median of the last 6 market sales in SW1Y (the wider postcode district), £450,000 to £4,050,000.
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.
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