20 Mansfield Avenue London Borough of Barnet EN4 8QD
Roof extension including rear dormer window and 2no. rooflights to front roofslope
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Progress
Application details
- Reference
- 19/4086/192
- Local authority
- Barnet
- Postcode
- EN4 8QD
- Ward
- EB
- Application type
- All Other
- Property type
- House
Key dates
- Submitted
- 29 Jul 2019
- Validated
- 29 Jul 2019
- Target decision
- 23 Sept 2019
- Decided
- 23 Aug 2019
Estimated project value
£35k–£94k
Typical UK cost for this job type, at outer London rates (2026). Estimated from the proposal description — planning applications do not state build cost. Source: Checkatrade 2026 loft conversion cost guide.
Recently sold nearby
Inside the two years most owners do their major work — kitchens, bathrooms, rewires and lofts. 3 recent sales are listed below.
- 2 MANSFIELD AVENUE, BARNET, EN4 8QDTerraced · £570,0008 months ago12 Jan 2026
- 11 MANSFIELD AVENUE, BARNET, EN4 8QDSemi-detached · Not a standard market sale · £605,00016 months ago16 May 2025
- 7 MANSFIELD AVENUE, BARNET, EN4 8QDTerraced · £520,00017 months ago31 Mar 2025
- 25 MANSFIELD AVENUE, BARNET, EN4 8QDTerraced · £585,0002 years ago28 Mar 2024
- 4 MANSFIELD AVENUE, BARNET, EN4 8QDTerraced · £815,0004 years ago9 May 2022
- 20 MANSFIELD AVENUE, BARNET, EN4 8QDTerraced · £580,0004 years ago10 Mar 2022
- 36 MANSFIELD AVENUE, BARNET, EN4 8QDTerraced · £485,0005 years ago19 Mar 2021
- 28 MANSFIELD AVENUE, BARNET, EN4 8QDSemi-detached · £515,0005 years ago16 Nov 2020
Homes here go for about £570,000 — the median of the last 7 market sales in EN4 8QD, £485,000 to £815,000.
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
- 16 Mansfield Avenue London Borough of Barnet EN4 8QDPermittedNext door
- 26 Mansfield Avenue London Borough of Barnet EN4 8QDPermittedNext door
- Mansfield Avenue Barnet EN4 8QDPermittedAdjoining
- 28 Mansfield Avenue London Borough of Barnet EN4 8QDRefusedAdjoining
- 6 Mansfield Avenue London Borough of Barnet EN4 8QDPermitted45 yd
- 34 Mansfield Avenue London Borough of Barnet EN4 8QDPermitted49 yd