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Permitted24/0166/HSESubmitted 2 years agoRear extension

11 Hillersdon Avenue London Borough of Barnet HA8 7SG

Single storey rear extension. New front porch. Conversion of the existing garage into habitable room, insertion of window to replace garage door. Changes to front and rear fenestration

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Progress

Submitted
17 Jan 2024
— completed
Validated
17 Jan 2024
— completed
Consultation
—
— completed
Target date
13 Mar 2024
— completed
Decided
16 Feb 2024
— completed

Application details

Reference
24/0166/HSE
Local authority
Barnet
Postcode
HA8 7SG
Ward
EW22
Application type
Householder
Property type
House

Key dates

Submitted
17 Jan 2024
Validated
17 Jan 2024
Target decision
13 Mar 2024
Decided
16 Feb 2024

Estimated project value

£39k–£65k

Based on the 17.4m² 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: 17.39m² · 1 additional bedrooms

Recently sold nearby

New owners, recently moved in. First work on a house usually follows within months of completing. 3 recent sales are listed below.

Homes here go for about £760,000 — the median of the last 7 market sales in HA8 7SG, £555,000 to £930,000.

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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