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Permitted21/04017/FULLSubmitted 5 years agoLoft conversion

20 Marne Street Westminster W10 4JE

Erection of a rear single-storey side extension to side of an existing outrigger and addition of 3 conservation rooflights on the rear of the main roof in connection with a loft conversion.

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Progress

Submitted
28 Jun 2021
— completed
Validated
28 Jun 2021
— completed
Consultation
30 Jul 2021
— completed
Target date
23 Aug 2021
— completed
Decided
10 Aug 2021
— completed

Application details

Reference
21/04017/FULL
Local authority
Westminster
Postcode
W10 4JE
Ward
QPB_02
Application type
All Other
Property type
House

Key dates

Submitted
28 Jun 2021
Validated
28 Jun 2021
Comments close
30 Jul 2021
Target decision
23 Aug 2021
Decided
10 Aug 2021

Estimated project value

£33k–£68k

Based on the 20.0m² 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: 20 · 1 additional bedrooms

Recently sold nearby

New owners, recently moved in. First work on a house usually follows within months of completing. 2 recent sales are listed below.

Homes here go for about £745,000 — the median of the last 8 market sales in W10 4JE, £610,000 to £1,635,000.

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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