20 Birkbeck Hill London Borough of Lambeth SE21 8JS
Erection of a front and rear mansard roof extension.
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Progress
Application details
- Reference
- 21/00985/FUL
- Local authority
- Lambeth
- Postcode
- SE21 8JS
- Ward
- THURPK
- Application type
- All Other
- Property type
- House
Key dates
- Submitted
- 10 Mar 2021
- Validated
- 10 Mar 2021
- Comments close
- 21 Apr 2021
- Target decision
- 5 May 2021
- Decided
- 5 May 2021
Estimated project value
£53k–£110k
Based on the 32.6m² 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: 32.64m² · 1 additional bedrooms
Recently sold nearby
Inside the two years most owners do their major work — kitchens, bathrooms, rewires and lofts. 4 recent sales are listed below.
- 45 BIRKBECK HILL, LONDON, SE21 8JSTerraced · £792,50010 months ago21 Nov 2025
- 6A BIRKBECK HILL, LONDON, SE21 8JSFlat or maisonette · Leasehold · £490,00013 months ago29 Aug 2025
- 25 BIRKBECK HILL, LONDON, SE21 8JSTerraced · Not a standard market sale · £605,00014 months ago21 Jul 2025
- GROUND FLOOR FLAT, 21 BIRKBECK HILL, LONDON, SE21 8JSFlat or maisonette · Leasehold · £550,00020 months ago30 Jan 2025
- FIRST FLOOR FLAT, 21 BIRKBECK HILL, LONDON, SE21 8JSFlat or maisonette · Leasehold · £325,0002 years ago22 Aug 2024
- 5 BIRKBECK HILL, LONDON, SE21 8JSSemi-detached · £843,0002 years ago13 Mar 2024
- 6A BIRKBECK HILL, LONDON, SE21 8JSFlat or maisonette · Leasehold · £425,0005 years ago29 Jun 2021
- 1 BIRKBECK HILL, LONDON, SE21 8JSSemi-detached · £720,0006 years ago9 Sept 2020
Homes here go for about £550,000 — the median of the last 7 market sales in SE21 8JS, £325,000 to £843,000.
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
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- 16 Birkbeck Hill London Borough of Lambeth SE21 8JSWithdrawnNext door
- London Borough of Lambeth SE21 8JSPermittedNext door
- 59 Thurlow Hill London Borough of Lambeth SE21 8JWRefusedAdjoining
- London Borough of Lambeth SE21 8JWPendingAdjoining
- London Borough of Lambeth SE21 8JWPermittedAdjoining