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Permitted25/3874/HSESubmitted 11 months agoRear extension

8 Petworth Road London Borough of Barnet N12 9HH

Single storey rear extension

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Progress

Submitted
22 Sept 2025
— completed
Validated
22 Sept 2025
— completed
Consultation
—
— completed
Target date
17 Nov 2025
— completed
Decided
17 Nov 2025
— completed

Application details

Reference
25/3874/HSE
Local authority
Barnet
Postcode
N12 9HH
Ward
WO22
Application type
Householder
Property type
House

Key dates

Submitted
22 Sept 2025
Validated
22 Sept 2025
Target decision
17 Nov 2025
Decided
17 Nov 2025

Estimated project value

£49k–£81k

Based on the 20.0m² 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: 20m²

Recently sold nearby

Nothing on this postcode has changed hands in the last two years. The sales below are for pricing rather than a lead.

Homes here go for about £770,000 — the median of the last 7 market sales in N12 9HH, £354,000 to £970,000.

Contains HM Land Registry data © Crown copyright and database right 2024. 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.

Nearby applications