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Permitted23/03432/LBCSubmitted 3 years agoLoft conversion

5A Motcomb Street Westminster SW1X 8JU

Erection of third floor mansard roof extension, installation of air conditioning unit within acoustic enclosure on rear second floor roof, new vent and air brick to rear elevation, and internal alterations at first and second floor levels.

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Progress

Submitted
23 May 2023
— completed
Validated
23 May 2023
— completed
Consultation
26 Jun 2023
— completed
Target date
18 Jul 2023
— completed
Decided
11 Sept 2023
— completed

Application details

Reference
23/03432/LBC
Local authority
Westminster
Postcode
SW1X 8JU
Ward
KBW_22
Application type
All Other
Property type
House

Key dates

Submitted
23 May 2023
Validated
23 May 2023
Comments close
26 Jun 2023
Target decision
18 Jul 2023
Decided
11 Sept 2023

Estimated project value

£49k–£100k

Based on the 30.0m² of floor area stated in the application, at inner London rates (2026). Source: Checkatrade 2026, loft conversion £1,200-£2,500/m².

Floor area gained: 30

Recently sold nearby

Inside the two years most owners do their major work — kitchens, bathrooms, rewires and lofts. 2 recent sales are listed below.

Homes here go for about £242,500 — the median of the last 5 market sales in SW1X 8JU, £85,000 to £1,570,000.

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.

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