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Permitted25/4855/HSESubmitted 9 months agoTwo-storey extension

42 Haslemere Avenue London Borough of Barnet EN4 8EZ

Single storey front extension including new porch. Single storey rear infill extension with new terrace area and access steps. Part single, part two storey side extension

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Progress

Submitted
4 Dec 2025
— completed
Validated
4 Dec 2025
— completed
Consultation
—
— completed
Target date
29 Jan 2026
— completed
Decided
11 Feb 2026
— completed

Application details

Reference
25/4855/HSE
Local authority
Barnet
Postcode
EN4 8EZ
Ward
BP22
Application type
Householder
Property type
House

Key dates

Submitted
4 Dec 2025
Validated
4 Dec 2025
Target decision
29 Jan 2026
Decided
11 Feb 2026

Estimated project value

£27k–£38k

Based on the 10.8m² of floor area stated in the application, at outer London rates (2026). Source: FMB / Checkatrade 2026, two-storey extension £2,000-£2,800/m².

Floor area gained: 10.8m²

Recently sold nearby

New owners, recently moved in. First work on a house usually follows within months of completing. 4 recent sales are listed below.

Homes here go for about £597,500 — the median of the last 8 market sales in EN4 8EZ, £542,500 to £900,000.

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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