12 Thurlestone Avenue London Borough of Barnet N12 0LP
Single storey rear extension following demolition of the existing garage. New timber fencing and gate
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Progress
Application details
- Reference
- 22/5813/HSE
- Local authority
- Barnet
- Postcode
- N12 0LP
- Ward
- FB22
- Application type
- Householder
- Property type
- House
Key dates
- Submitted
- 7 Dec 2022
- Validated
- 7 Dec 2022
- Target decision
- 1 Feb 2023
- Decided
- 24 Jan 2023
Estimated project value
£51k–£85k
Based on the 21.0m² 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: 21m²
Recently sold nearby
Inside the two years most owners do their major work — kitchens, bathrooms, rewires and lofts. 3 recent sales are listed below.
- 34 THURLESTONE AVENUE, LONDON, N12 0LPSemi-detached · £850,0007 months ago20 Feb 2026
- 24 THURLESTONE AVENUE, LONDON, N12 0LPOther · Not a standard market sale · £1,000,00013 months ago7 Aug 2025
- 22 THURLESTONE AVENUE, LONDON, N12 0LPOther · Not a standard market sale · £1,000,00013 months ago7 Aug 2025
- 36 THURLESTONE AVENUE, LONDON, N12 0LPSemi-detached · Not a standard market sale · £590,0002 years ago7 Aug 2024
- 40 THURLESTONE AVENUE, LONDON, N12 0LPTerraced · £660,0002 years ago29 Nov 2023
- 12 THURLESTONE AVENUE, LONDON, N12 0LPSemi-detached · £695,0003 years ago31 Oct 2022
- 8 THURLESTONE AVENUE, LONDON, N12 0LPSemi-detached · £550,2506 years ago17 Jan 2020
- 21 THURLESTONE AVENUE, LONDON, N12 0LPSemi-detached · £650,0007 years ago29 Apr 2019
Homes here go for about £660,000 — the median of the last 5 market sales in N12 0LP, £550,250 to £850,000.
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.
Nearby applications
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- 9 Thurlestone Avenue London Borough of Barnet N12 0LPPermittedAdjoining
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