1 Carlton House Terrace Westminster SW1Y 5AF
External alterations and internal alterations, including re-location of a bin store and installation of a new bin lift in the front lightwell, re-location the plant and from main roof level into the side lightwell and to install associated screening, amendments to the roof level extension, landscaping and boundary treatments to accommodate a new plant enclosure, changes to facing materials, underpinning, dampproofing, changes to internal layouts, installation of services, installation of wall build-out and internal wall insulation and other internal works in association with the change of use of this building into a single residential dwelling (class C3) [amendments to RN: 21/01154/LBC] (Linked to 25/04930/FULL).
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Progress
Application details
- Reference
- 25/04929/LBC
- Local authority
- Westminster
- Postcode
- SW1Y 5AF
- Ward
- SJW_22
- Application type
- All Other
- Property type
- House
Key dates
- Submitted
- 16 Jul 2025
- Validated
- 16 Jul 2025
- Comments close
- 15 Oct 2025
- Target decision
- 10 Sept 2025
- Decided
- 14 Aug 2026
Estimated project value
£21k–£135k
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: trade estimate.
Recently sold nearby
Nothing on this postcode has changed hands in the last two years. The sales below are for pricing rather than a lead.
- 1 CARLTON HOUSE TERRACE, LONDON, SW1Y 5AFOther · Leasehold · Not a standard market sale · £45,000,0009 years ago8 Feb 2017
Contains HM Land Registry data © Crown copyright and database right 2017. 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.
Recorded changes
- 5 Sept 2026: Approved
Nearby applications
- 1 Carlton House Terrace Westminster SW1Y 5AFPermittedNext door
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- 1 Carlton House Terrace Westminster SW1Y 5AFPermittedNext door