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Permitted10/08749/FULLLoft conversion

27-28 Devonshire Mews West Westminster W1G 6QF

Demolition behind retained front facade of No.27 and demolition behind front and rear facade of No.28 for the redevelopment to create a two - three bedroom mews houses with new accommodation at lower ground floor and roof level. Erection of a two storey rear extension at new basement and ground floor level and loft conversion with two new dormer windows to the rear elevation at No.28.

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Progress

Submitted
— completed
Validated
— completed
Consultation
— completed
Target date
— completed
Decided
6 Dec 2010
— completed

Application details

Reference
10/08749/FULL
Local authority
Westminster
Postcode
W1G 6QF
Ward
MARYLEBONE HIGH STREET
Application type
All Other
Property type
House

Key dates

Decided
6 Dec 2010

Estimated project value

£37k–£100k

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 2026 loft conversion cost guide.

Recently sold nearby

Inside the two years most owners do their major work — kitchens, bathrooms, rewires and lofts.

Homes here go for about £1,850,000 — the median of the last 3 market sales in W1G 6QF, £465,000 to £2,400,000.

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.

Nearby applications