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PermittedDM2021/00625Submitted 5 years agoRear extension

21 Keynsham Road London Borough of Sutton SM4 6NL

Erection of a single storey rear extension with fenestration alterations.

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Progress

Submitted
29 Mar 2021
— completed
Validated
29 Mar 2021
— completed
Consultation
—
— completed
Target date
24 May 2021
— completed
Decided
20 May 2021
— completed

Application details

Reference
DM2021/00625
Local authority
Sutton
Postcode
SM4 6NL
Ward
C10
Application type
Householder
Property type
House

Key dates

Submitted
29 Mar 2021
Validated
29 Mar 2021
Target decision
24 May 2021
Decided
20 May 2021

Estimated project value

£43k–£72k

Based on the 19.0m² of floor area stated in the application, at outer London rates (2026). Source: FMB / Checkatrade 2026, single-storey extension £1,800-£3,000/m².

Floor area gained: 19m²

Recently sold nearby

Inside the two years most owners do their major work — kitchens, bathrooms, rewires and lofts.

Homes here go for about £370,000 — the median of the last 7 market sales in SM4 6NL, £320,000 to £595,000.

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.

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