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Permitted25/04930/FULLSubmitted over a year agoBasement

1 Carlton House Terrace Westminster SW1Y 5AF

Variation of conditions 1 and 4 removal of conditions 11 and 12 of planning permission dated 28 April 2021 (RN: 21/01191/FULL) as amended by non-material amendment dated 04 September 2025 (RN: 25/05079/NMA), which is a variation of earlier permissions for use of the building as a single residential dwelling (Class C3) with associated internal and external alterations including erection of a sun room with terrace at roof level, partial infill of rear lightwell at basement level and car port enclosure. NAMELY, minor design changes, relocation of the bin store and to install 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, revisions to the roof level extension, landscaping and boundary treatments to accommodate a new plant enclosure and provision of details pursuant to the conditions listed above. (Linked to 25/04929/LBC)

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Progress

Submitted
16 Jul 2025
— completed
Validated
16 Jul 2025
— completed
Consultation
15 Oct 2025
— completed
Target date
10 Sept 2025
— completed
Decided
14 Aug 2026
— completed

Application details

Reference
25/04930/FULL
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

£135k–£340k

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.

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

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