12 Boyne Avenue London Borough of Barnet NW4 2JN
2no. Single storey rear extensions with a proposed depth of 4.00 metres, maximum height of 3.88 metres and eaves height of 3.00 metres. Following demolition of the existing rear patio, rear outrigger and rear/side shed.
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Progress
Application details
- Reference
- 26/3611/PNH
- Local authority
- Barnet
- Postcode
- NW4 2JN
- Ward
- HD22
- Application type
- Prior Approval
- Property type
- House
Key dates
- Submitted
- 6 Oct 2026
- Validated
- 6 Oct 2026
- Target decision
- 17 Nov 2026
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. 3 recent sales are listed below.
- 6 BOYNE AVENUE, LONDON, NW4 2JNTerraced · £777,5006 months ago10 Apr 2026
- 30 BOYNE AVENUE, LONDON, NW4 2JNTerraced · £289,00011 months ago7 Nov 2025
- 26 BOYNE AVENUE, LONDON, NW4 2JNTerraced · £870,00022 months ago18 Dec 2024
- 22 BOYNE AVENUE, LONDON, NW4 2JNSemi-detached · £784,5002 years ago9 Sept 2024
- 14 BOYNE AVENUE, LONDON, NW4 2JNTerraced · £835,0002 years ago2 Sept 2024
- 34 BOYNE AVENUE, LONDON, NW4 2JNSemi-detached · £860,0004 years ago30 Aug 2022
- 40 BOYNE AVENUE, LONDON, NW4 2JNSemi-detached · £830,0007 years ago30 Apr 2019
- 42 BOYNE AVENUE, LONDON, NW4 2JNSemi-detached · £815,5007 years ago13 Feb 2019
Homes here go for about £822,750 — the median of the last 8 market sales in NW4 2JN, £289,000 to £870,000.
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.
Recorded changes
- 22 Oct 2026: Now also includes an outbuilding
- 13 Oct 2026: No longer includes an outbuilding
Nearby applications
- 14 Boyne Avenue London Borough of Barnet NW4 2JNRefusedNext door
- 10 Boyne Avenue London Borough of Barnet NW4 2JNPermittedNext door
- 18 Boyne Avenue London Borough of Barnet NW4 2JNPermittedNext door
- 18 Boyne Avenue London Borough of Barnet NW4 2JNPermittedNext door
- 18 Boyne Avenue London Borough of Barnet NW4 2JNPendingNext door
- 1 Boyne Avenue London Borough of Barnet NW4 2JLPermittedAdjoining