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Refused23/1713/FULSubmitted 3 years agoSide extension

54 Lewes Road London Borough of Barnet N12 9NL

Conversion of the existing side extension into self-contained flat. Changes to front fenestration

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Progress

Submitted
25 Apr 2023
— completed
Validated
25 Apr 2023
— completed
Consultation
—
— completed
Target date
20 Jun 2023
— completed
Decided
20 Jun 2023
— completed

Application details

Reference
23/1713/FUL
Local authority
Barnet
Postcode
N12 9NL
Ward
WO22
Application type
All Other
Property type
Flat

Key dates

Submitted
25 Apr 2023
Validated
25 Apr 2023
Target decision
20 Jun 2023
Decided
20 Jun 2023

Estimated project value

£230k–£385k

Based on the 94.9m² 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: 94.88m²

Recently sold nearby

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

Homes here go for about £780,000 — the median of the last 7 market sales in N12 9NL, £650,000 to £995,000.

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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