23 Walfield Avenue London Borough of Barnet N20 9PS
Single storey rear extension with a proposed depth of 5 metres from original rear wall with an eaves height of 3 metres and a maximum height of 3.759 metres
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Progress
Application details
- Reference
- 19/0852/PNH
- Local authority
- Barnet
- Postcode
- N20 9PS
- Ward
- OA
- Application type
- Prior Approval
- Property type
- House
Key dates
- Submitted
- 13 Feb 2019
- Validated
- 13 Feb 2019
- Target decision
- 27 Mar 2019
- Decided
- 13 Mar 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
Inside the two years most owners do their major work — kitchens, bathrooms, rewires and lofts. 5 recent sales are listed below.
- 69 WALFIELD AVENUE, LONDON, N20 9PSSemi-detached · £900,0007 months ago16 Mar 2026
- 15 WALFIELD AVENUE, LONDON, N20 9PSSemi-detached · £900,00012 months ago27 Oct 2025
- 23 WALFIELD AVENUE, LONDON, N20 9PSTerraced · £1,012,50012 months ago24 Oct 2025
- 21 WALFIELD AVENUE, LONDON, N20 9PSSemi-detached · £735,00013 months ago28 Aug 2025
- 55 WALFIELD AVENUE, LONDON, N20 9PSSemi-detached · £999,95022 months ago18 Dec 2024
- 37 WALFIELD AVENUE, LONDON, N20 9PSSemi-detached · £790,0003 years ago26 Oct 2023
- 73 WALFIELD AVENUE, LONDON, N20 9PSSemi-detached · Leasehold · £825,0003 years ago13 Jul 2023
- 9 WALFIELD AVENUE, LONDON, N20 9PSSemi-detached · £700,0004 years ago31 Mar 2022
Homes here go for about £862,500 — the median of the last 8 market sales in N20 9PS, £700,000 to £1,012,500.
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
- 21 Walfield Avenue London Borough of Barnet N20 9PSPermittedNext door
- 11 Walfield Avenue London Borough of Barnet N20 9PSPermittedAdjoining
- 9 Walfield Avenue London Borough of Barnet N20 9PSPending46 yd
- 9 Walfield Avenue London Borough of Barnet N20 9PSPending47 yd
- 14 Walfield Avenue London Borough of Barnet N20 9PRPermitted51 yd
- 14 Walfield Avenue London Borough of Barnet N20 9PRPermitted53 yd