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Refused08/08965/FULLLoft conversion

71-79 Winchester Street Westminster SW1V 4NU

Alterations and extensions including the erection of mansard roof extensions and terraces at rear third floor level to Nos. 71-79 Winchester Street, erection of rear ground floor extension to No. 79 new windows to first floor side elevations to Nos. 71 and 79, internal alterations to the layout of the buildings to provide seven additional studios within the new mansard storey across Nos. 71 to 79, 5 x studios and 1 x 2 bed flat within No. 71, 1 additional studio within No. 79 and 1 additional studio at No. 75 in connection with their continued use as a House in Multiple Occupation (Sui Generis).

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Progress

Submitted
— completed
Validated
— completed
Consultation
— completed
Target date
— completed
Decided
16 Apr 2009
— completed

Application details

Reference
08/08965/FULL
Local authority
Westminster
Postcode
SW1V 4NU
Ward
WARWICK
Application type
All Other
Property type
Flat

Key dates

Decided
16 Apr 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.

Homes here go for about £910,000 — the median of the last 8 market sales in SW1V 4NU, £465,000 to £3,520,000.

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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