7 Alleyn Crescent London Borough of Southwark SE21 8BN
Construction of a two-storey side extension; replacement of front boundary timber wall to brick; inclusion of bin store and installation of a ground floor side facing window
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Progress
Application details
- Reference
- 26/AP/1143
- Local authority
- Southwark
- Postcode
- SE21 8BN
- Ward
- DUWO
- Application type
- Householder
- Property type
- House
Key dates
- Submitted
- 28 Apr 2026
- Validated
- 28 Apr 2026
- Comments close
- 29 May 2026
- Target decision
- 22 Jun 2026
- Decided
- 16 Jun 2026
Estimated project value
£135k–£190k
Based on the 50.0m² of floor area stated in the application, at inner London rates (2026). Source: FMB / Checkatrade 2026, two-storey extension £2,000-£2,800/m².
Floor area gained: 50m² · 1 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.
- 9 ALLEYN CRESCENT, LONDON, SE21 8BNTerraced · £935,0007 months ago22 Jan 2026
- 7 ALLEYN CRESCENT, LONDON, SE21 8BNTerraced · £1,145,00022 months ago29 Oct 2024
- 3 ALLEYN CRESCENT, LONDON, SE21 8BNTerraced · £985,0004 years ago8 Jul 2022
- 12 ALLEYN CRESCENT, LONDON, SE21 8BNTerraced · £1,092,7504 years ago5 Jul 2022
- 11 ALLEYN CRESCENT, LONDON, SE21 8BNTerraced · £850,0004 years ago6 Dec 2021
- 13 ALLEYN CRESCENT, LONDON, SE21 8BNTerraced · Leasehold · £760,0007 years ago2 Nov 2018
- 3 ALLEYN CRESCENT, LONDON, SE21 8BNTerraced · £812,0009 years ago28 Apr 2017
- 14 ALLEYN CRESCENT, LONDON, SE21 8BNTerraced · £783,0009 years ago12 Apr 2017
Homes here go for about £892,500 — the median of the last 8 market sales in SE21 8BN, £760,000 to £1,145,000.
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.
Nearby applications
- 7 Alleyn Crescent London Borough of Southwark SE21 8BNPermittedNext door
- 12 Alleyn Crescent London Borough of Southwark SE21 8BNPermittedAdjoining
- Alleyn Crescent Southwark SE21 8BNPermittedAdjoining
- 71 Alleyn Park London Borough of Southwark SE21 8ATPermittedAdjoining
- Alleyn Park London Borough of SouthwarkPermittedAdjoining
- 71 Alleyn Park London Borough of Southwark SE21 8ATPermittedAdjoining