20 Derwent Avenue London Borough of Barnet EN4 8LX
Single storey rear extension with pitched roof and 2no. rooflights
Tracking, tags and letters are part of the paid plan. See what it costs. Searching and reading any record stays free.
Progress
Application details
- Reference
- 24/3649/192
- Local authority
- Barnet
- Postcode
- EN4 8LX
- Ward
- BP22
- Application type
- All Other
- Property type
- House
Key dates
- Submitted
- 7 Oct 2024
- Validated
- 7 Oct 2024
- Target decision
- 2 Dec 2024
- Decided
- 21 Nov 2024
Estimated project value
£28k–£46k
Based on the 12.3m² 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: 12.3m²
Recently sold nearby
Inside the two years most owners do their major work — kitchens, bathrooms, rewires and lofts.
- 48 DERWENT AVENUE, BARNET, EN4 8LXTerraced · £625,00010 months ago21 Oct 2025
- 20 DERWENT AVENUE, BARNET, EN4 8LXTerraced · £545,0002 years ago24 May 2024
- 40 DERWENT AVENUE, BARNET, EN4 8LXTerraced · £530,0002 years ago20 May 2024
- 16 DERWENT AVENUE, BARNET, EN4 8LXTerraced · £770,0002 years ago10 Nov 2023
- 36 DERWENT AVENUE, BARNET, EN4 8LXTerraced · £525,0003 years ago17 Mar 2023
- 30 DERWENT AVENUE, BARNET, EN4 8LXTerraced · £575,0004 years ago26 Sept 2021
- 38 DERWENT AVENUE, BARNET, EN4 8LXTerraced · £510,0009 years ago30 Sept 2016
- 4 DERWENT AVENUE, BARNET, EN4 8LXSemi-detached · £551,00010 years ago24 Mar 2016
Homes here go for about £548,000 — the median of the last 8 market sales in EN4 8LX, £510,000 to £770,000.
Contains HM Land Registry data © Crown copyright and database right 2025. 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
- 20 Derwent Avenue London Borough of Barnet EN4 8LXRefusedNext door
- 20 Derwent Avenue London Borough of Barnet EN4 8LXPermittedNext door
- 26 Derwent Avenue Barnet EN4 8LXRefusedNext door
- 26 Derwent Avenue London Borough of Barnet EN4 8LXPermittedNext door
- 17 Chetwynd Avenue London Borough of Barnet EN4 8NGPermitted49 yd
- 23 Chetwynd Avenue London Borough of Barnet EN4 8NGPermitted50 yd