29 Sefton Avenue London Borough of Barnet NW7 3QB
Roof extension involving removal of the existing side and rear dormer window and new hip to gable, rear dormer window, 3no. front facing rooflights and new side gable window. Demolition of the existing chimney. Single storey front porch extension. Demolition of the existing garage. Alterations to the existing driveway including removal of side boundary wall
Tracking, tags and letters are part of the paid plan. See what it costs. Searching and reading any record stays free.
Progress
Application details
- Reference
- 26/0580/192
- Local authority
- Barnet
- Postcode
- NW7 3QB
- Ward
- EW22
- Application type
- All Other
- Property type
- House
Key dates
- Submitted
- 16 Feb 2026
- Validated
- 16 Feb 2026
- Target decision
- 13 Apr 2026
- Decided
- 2 Mar 2026
Estimated project value
£11k–£23k
Based on the 6.6m² of floor area stated in the application, at inner London rates (2026). Source: Checkatrade 2026, loft conversion £1,200-£2,500/m².
Floor area gained: 6.6m²
Recently sold nearby
Inside the two years most owners do their major work — kitchens, bathrooms, rewires and lofts. 2 recent sales are listed below.
- 17 SEFTON AVENUE, LONDON, NW7 3QBSemi-detached · £850,00012 months ago21 Aug 2025
- 25 SEFTON AVENUE, LONDON, NW7 3QBSemi-detached · £1,025,00022 months ago6 Nov 2024
- 29 SEFTON AVENUE, LONDON, NW7 3QBSemi-detached · £881,5004 years ago25 Mar 2022
- 5 SEFTON AVENUE, LONDON, NW7 3QBSemi-detached · £560,0005 years ago25 Jun 2021
- 5 SEFTON AVENUE, LONDON, NW7 3QBSemi-detached · £500,0009 years ago27 Apr 2017
- 23 SEFTON AVENUE, LONDON, NW7 3QBSemi-detached · £650,00012 years ago15 Apr 2014
- 15 SEFTON AVENUE, LONDON, NW7 3QBSemi-detached · £507,50013 years ago8 Mar 2013
- 5A SEFTON AVENUE, LONDON, NW7 3QBSemi-detached · £330,00014 years ago25 May 2012
Homes here go for about £605,000 — the median of the last 8 market sales in NW7 3QB, £330,000 to £1,025,000.
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.
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