21 Montagu Mews South Westminster W1H 7ES
Infill of existing light well to first floor at the rear, roof alterations including new conservation style roof lights and photovoltaic panels to the rear slope of the roof. Alterations to the front façade including the installation of new double doors with window over and removal metal bar to ground floor windows and installation of double glazed vacuum glazed double glazing within existing window units.
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Progress
Application details
- Reference
- 25/09359/FULL
- Local authority
- Westminster
- Postcode
- W1H 7ES
- Ward
- MBW_22
- Application type
- All Other
- Property type
- House
Key dates
- Submitted
- 26 Mar 2026
- Validated
- 26 Mar 2026
- Comments close
- 26 May 2026
- Target decision
- 21 May 2026
- Decided
- 28 May 2026
Estimated project value
£9k–£25k
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 / BestBuilders 2026 roof replacement, 3-bed semi.
Floor area gained: 29.7m² · 2 additional bedrooms
Recently sold nearby
Inside the two years most owners do their major work — kitchens, bathrooms, rewires and lofts. 2 recent sales are listed below.
- 21 MONTAGU MEWS SOUTH, LONDON, W1H 7ESTerraced · Leasehold · £1,215,00017 months ago2 May 2025
- 26 MONTAGU MEWS SOUTH, LONDON, W1H 7ESFlat or maisonette · Leasehold · £825,00021 months ago15 Jan 2025
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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