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Permitted21/AP/2257Submitted 5 years agoSide extension

1 Alleyn Crescent London Borough of Southwark SE21 8BN

Converting garage into store/kitchen plus construction of a single storey side extension.

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Progress

Submitted
29 Jun 2021
— completed
Validated
29 Jun 2021
— completed
Consultation
25 Aug 2021
— completed
Target date
23 Aug 2021
— completed
Decided
27 Aug 2021
— completed

Application details

Reference
21/AP/2257
Local authority
Southwark
Postcode
SE21 8BN
Ward
DUWO
Application type
Householder
Property type
House

Key dates

Submitted
29 Jun 2021
Validated
29 Jun 2021
Comments close
25 Aug 2021
Target decision
23 Aug 2021
Decided
27 Aug 2021

Estimated project value

£47k–£78k

Based on the 19.3m² of floor area stated in the application, at inner London rates (2026). Source: FMB / Checkatrade 2026, single-storey extension £1,800-£3,000/m².

Floor area gained: 19.25

Recently sold nearby

Inside the two years most owners do their major work — kitchens, bathrooms, rewires and lofts. 2 recent sales are listed below.

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.

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