20 Firs Avenue London Borough of Barnet N11 3NG
Single storey rear conservatory with rear patio and associated garden landscaping
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Progress
Application details
- Reference
- 18/1339/192
- Local authority
- Barnet
- Postcode
- N11 3NG
- Ward
- CP
- Application type
- All Other
- Property type
- House
Key dates
- Submitted
- 1 Mar 2018
- Validated
- 1 Mar 2018
- Target decision
- 26 Apr 2018
- Decided
- 26 Mar 2018
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
Inside the two years most owners do their major work — kitchens, bathrooms, rewires and lofts.
- 44 FIRS AVENUE, LONDON, N11 3NGTerraced · Not a standard market sale · £720,00011 months ago6 Oct 2025
- 50 FIRS AVENUE, LONDON, N11 3NGSemi-detached · £375,0004 years ago28 Apr 2022
- 28 FIRS AVENUE, LONDON, N11 3NGSemi-detached · £650,0004 years ago28 Mar 2022
- 58 FIRS AVENUE, LONDON, N11 3NGSemi-detached · £510,0004 years ago22 Dec 2021
- 56 FIRS AVENUE, LONDON, N11 3NGSemi-detached · £600,0009 years ago17 Mar 2017
- 8 FIRS AVENUE, LONDON, N11 3NGDetached · £820,0009 years ago20 Dec 2016
- 44 FIRS AVENUE, LONDON, N11 3NGTerraced · £630,00010 years ago20 Nov 2015
- 58 FIRS AVENUE, LONDON, N11 3NGSemi-detached · £475,00011 years ago19 Sept 2014
Homes here go for about £600,000 — the median of the last 7 market sales in N11 3NG, £375,000 to £820,000.
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
- 2 Firs Avenue London Borough of Barnet N11 3NGPermittedAdjoining
- 10 Firs Avenue London Borough of Barnet N11 3NGPermittedAdjoining
- 8A Firs Avenue London Borough of Barnet N11 3NGPending46 yd
- 8A Firs Avenue London Borough of Barnet N11 3NGRefused47 yd
- 8 Firs Avenue London Borough of Barnet N11 3NGPermitted49 yd
- 231 Colney Hatch Lane London Borough of Barnet N11 3DGPermitted85 yd