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Permitted23/2198/HSESubmitted 3 years agoRear extension

61 Warwick Avenue London Borough of Barnet HA8 8UN

Part single, part two storey side and rear extension following demolition of existing outbuilding/garage and extension to the existing patio and associated steps. New front porch (Amended Description)

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Map of the site

Progress

Submitted
18 May 2023
— completed
Validated
18 May 2023
— completed
Consultation
—
— completed
Target date
13 Jul 2023
— completed
Decided
9 Aug 2023
— completed

Application details

Reference
23/2198/HSE
Local authority
Barnet
Postcode
HA8 8UN
Ward
EY22
Application type
Householder
Property type
House

Key dates

Submitted
18 May 2023
Validated
18 May 2023
Target decision
13 Jul 2023
Decided
9 Aug 2023

Estimated project value

£115k–£190k

Based on the 51.3m² 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: 51.3m² · 3 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.

Homes here go for about £650,000 — the median of the last 8 market sales in HA8 8UN, £577,500 to £875,000.

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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