21 Thorndene Avenue London Borough of Barnet N11 1ET
Single storey rear extension including new patio. First floor rear extension. Alteration and extension to roof including 1no rooflight to side roofslope. Alterations to fenestration to side elevation
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Progress
Application details
- Reference
- 19/1117/HSE
- Local authority
- Barnet
- Postcode
- N11 1ET
- Ward
- BP
- Application type
- Householder
- Property type
- House
Key dates
- Submitted
- 26 Feb 2019
- Validated
- 26 Feb 2019
- Target decision
- 23 Apr 2019
- Decided
- 23 Apr 2019
Estimated project value
£41k–£75k
Typical UK cost for this job type, at inner London rates (2026). Estimated from the proposal description — planning applications do not state build cost. Source: MyJobQuote / Checkatrade 2026, ~20m² at £1,800-£3,000/m².
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.
- 4 THORNDENE AVENUE, LONDON, N11 1ETSemi-detached · £800,0002 years ago4 Dec 2023
- 2 THORNDENE AVENUE, LONDON, N11 1ETSemi-detached · £465,0005 years ago10 Mar 2021
- 7 THORNDENE AVENUE, LONDON, N11 1ETSemi-detached · £550,0006 years ago17 Sept 2019
- 12 THORNDENE AVENUE, LONDON, N11 1ETSemi-detached · £640,00010 years ago18 Dec 2015
- 3 THORNDENE AVENUE, LONDON, N11 1ETSemi-detached · £359,95019 years ago20 Jul 2007
- 17 THORNDENE AVENUE, LONDON, N11 1ETSemi-detached · £284,00024 years ago8 Aug 2002
- 7 THORNDENE AVENUE, LONDON, N11 1ETSemi-detached · £250,00024 years ago5 Jul 2002
- 9 THORNDENE AVENUE, LONDON, N11 1ETDetached · £210,00024 years ago30 Nov 2001
Homes here go for about £412,475 — the median of the last 8 market sales in N11 1ET, £210,000 to £800,000.
Contains HM Land Registry data © Crown copyright and database right 2023. 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
- 17 Thorndene Avenue London Borough of Barnet N11 1ETPermittedAdjoining
- 6 Prevost Road London Borough of Barnet N11 1ENPermittedAdjoining
- 6 Prevost Road London Borough of Barnet N11 1ENPermittedAdjoining
- 37 Dene Road London Borough of Barnet N11 1ESPermittedAdjoining
- 31 Dene Road London Borough of Barnet N11 1ESRefused56 yd
- 31 Dene Road London Borough of Barnet N11 1ESPermitted56 yd