London Borough of Barnet
Roof extension including 1no. rear dormer window and 2no. front facing and 2no. side facing rooflights
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Progress
Application details
- Reference
- 26/3626/FUL
- Local authority
- Barnet
- Postcode
- N20 0QL
- Ward
- WO22
- Application type
- All Other
- Property type
- House
Key dates
- Submitted
- 8 Oct 2026
- Validated
- 8 Oct 2026
- Target decision
- 3 Dec 2026
Estimated project value
£42k–£87k
Based on the 34.5m² of floor area stated in the application, at UK average rates (2026). Source: Checkatrade 2026, loft conversion £1,200-£2,500/m².
Floor area gained: 34.5m²
Recently sold nearby
Inside the two years most owners do their major work — kitchens, bathrooms, rewires and lofts.
- 7 CONISTON CLOSE, LONDON, N20 0QLTerraced · £548,00019 months ago27 Mar 2025
- 6 CONISTON CLOSE, LONDON, N20 0QLTerraced · £455,0004 years ago14 Jan 2022
- 20 CONISTON CLOSE, LONDON, N20 0QLFlat or maisonette · Leasehold · Not a standard market sale · £327,5006 years ago21 Jan 2020
- 15 CONISTON CLOSE, LONDON, N20 0QLFlat or maisonette · Leasehold · £400,0009 years ago11 Aug 2017
- 16 CONISTON CLOSE, LONDON, N20 0QLFlat or maisonette · Leasehold · £335,00011 years ago4 Aug 2015
- 1 CONISTON CLOSE, LONDON, N20 0QLFlat or maisonette · Leasehold · £250,00012 years ago11 Mar 2014
- 26 CONISTON CLOSE, LONDON, N20 0QLFlat or maisonette · Leasehold · £210,00013 years ago11 Jan 2013
- 28 CONISTON CLOSE, LONDON, N20 0QLFlat or maisonette · Leasehold · £200,00014 years ago9 Jan 2012
Homes here go for about £335,000 — the median of the last 7 market sales in N20 0QL, £200,000 to £548,000.
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.
Recorded changes
- 22 Oct 2026: Now also includes windows and doors
- 13 Oct 2026: No longer includes windows and doors
Nearby applications
- 16 Coniston Close London Borough of Barnet N20 0QLRefusedNext door
- 16 Coniston Close London Borough of Barnet N20 0QLRefusedNext door
- 13 Derwent Crescent London Borough of Barnet N20 0QHPermitted72 yd
- 15 Derwent Crescent London Borough of Barnet N20 0QHRefused82 yd
- 7 Derwent Crescent London Borough of Barnet N20 0QNWithdrawn101 yd
- London Borough of BarnetPermitted105 yd