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PermittedDM2022/01992Submitted 3 years agoLoft conversion

18 Walton Avenue London Borough of Sutton SM3 9UB

Conversion of loft space involving alterations to existing roofline, a dormer extension at rear, a window to flank roofslope and rooflights to front roofslope.

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Progress

Submitted
10 Nov 2022
— completed
Validated
10 Nov 2022
— completed
Consultation
—
— completed
Target date
5 Jan 2023
— completed
Decided
20 Dec 2022
— completed

Application details

Reference
DM2022/01992
Local authority
Sutton
Postcode
SM3 9UB
Ward
W03
Application type
All Other
Property type
House

Key dates

Submitted
10 Nov 2022
Validated
10 Nov 2022
Target decision
5 Jan 2023
Decided
20 Dec 2022

Estimated project value

£35k–£72k

Based on the 23.0m² of floor area stated in the application, at outer London rates (2026). Source: Checkatrade 2026, loft conversion £1,200-£2,500/m².

Floor area gained: 23m² · 2 additional bedrooms

Recently sold nearby

New owners, recently moved in. First work on a house usually follows within months of completing. 2 recent sales are listed below.

Homes here go for about £467,500 — the median of the last 8 market sales in SM3 9UB, £375,000 to £750,000.

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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