45 Sefton Avenue London Borough of Barnet NW7 3QE
single storey rear extension with a depth of 4.50 metres beyond the original rear wall, a maximum height of 4.00 metres and an eaves height of 3.00 metres following demolition of the existing conservatory.
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Progress
Application details
- Reference
- 22/0906/PNH
- Local authority
- Barnet
- Postcode
- NW7 3QE
- Ward
- HA
- Application type
- Prior Approval
- Property type
- House
Key dates
- Submitted
- 21 Feb 2022
- Validated
- 21 Feb 2022
- Target decision
- 4 Apr 2022
- Decided
- 28 Mar 2022
Estimated project value
£58k–£97k
Based on the 23.8m² of floor area stated in the application, at inner London rates (2026). Source: FMB / Checkatrade 2026, single-storey extension £1,800-£3,000/m².
Floor area gained: 23.8m²
Recently sold nearby
Inside the two years most owners do their major work — kitchens, bathrooms, rewires and lofts. 2 recent sales are listed below.
- 63 SEFTON AVENUE, LONDON, NW7 3QESemi-detached · £700,0009 months ago11 Dec 2025
- 35 SEFTON AVENUE, LONDON, NW7 3QESemi-detached · £1,100,0009 months ago21 Nov 2025
- 45 SEFTON AVENUE, LONDON, NW7 3QESemi-detached · £750,0004 years ago24 Sept 2021
- 49 SEFTON AVENUE, LONDON, NW7 3QESemi-detached · £775,0005 years ago26 Mar 2021
- 35 SEFTON AVENUE, LONDON, NW7 3QESemi-detached · £900,0005 years ago12 Feb 2021
- 37 SEFTON AVENUE, LONDON, NW7 3QESemi-detached · £780,0009 years ago26 Jun 2017
- 39 SEFTON AVENUE, LONDON, NW7 3QESemi-detached · £755,0009 years ago9 Dec 2016
- 65 SEFTON AVENUE, LONDON, NW7 3QESemi-detached · £417,50013 years ago9 Oct 2012
Homes here go for about £765,000 — the median of the last 8 market sales in NW7 3QE, £417,500 to £1,100,000.
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
- 45 Sefton Avenue London Borough of Barnet NW7 3QERefusedNext door
- 45 Sefton Avenue London Borough of Barnet NW7 3QEPermittedNext door
- 43 Sefton Avenue London Borough of Barnet NW7 3QEPermittedNext door
- 49 Sefton Avenue London Borough of Barnet NW7 3QEPermittedNext door
- 39 Sefton Avenue London Borough of Barnet NW7 3QERefusedAdjoining
- 55 Sefton Avenue London Borough of Barnet NW7 3QEPermittedAdjoining