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Permitted09/02333/FULLLoft conversion

42-43 Hertford Street 27-29 Shepherd Street Westminster W1J 7DB

Use of 42-43 Hertford Street as seven residential units (1x studio, 2x1 bed, 2x2 bed and 2x3 bed flats), erection of mansard roof incorporating plant room. Demolition and redevelopment of mews houses at 27/29 Shepherd Street to provide 2x3 storey single family dwellinghouses with two off street parking spaces.

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Map of the site

Progress

Submitted
—
— completed
Validated
—
— completed
Consultation
—
— completed
Target date
—
— completed
Decided
2 Jul 2009
— completed

Application details

Reference
09/02333/FULL
Local authority
Westminster
Postcode
W1J 7DB
Ward
WEST END
Application type
All Other
Property type
Flat

Key dates

Decided
2 Jul 2009

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

New owners, recently moved in. First work on a house usually follows within months of completing. 8 recent sales are listed below.

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.

Nearby applications