20 Clifton Avenue London Borough of Barnet N3 1BN
Roof extension involving hip to gable with rear dormer windows and 4no. front facing rooflights
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Progress
Application details
- Reference
- 26/2688/192
- Local authority
- Barnet
- Postcode
- N3 1BN
- Ward
- FC22
- Application type
- All Other
- Property type
- House
Key dates
- Submitted
- 20 Jul 2026
- Validated
- 20 Jul 2026
- Target decision
- 14 Sept 2026
- Decided
- 30 Jul 2026
Estimated project value
£80k–£165k
Based on the 49.1m² 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: 49.1m²
Recently sold nearby
Inside the two years most owners do their major work — kitchens, bathrooms, rewires and lofts.
- 6 CLIFTON AVENUE, LONDON, N3 1BNTerraced · £1,355,00016 months ago26 Jun 2025
- 34A CLIFTON AVENUE, LONDON, N3 1BNFlat or maisonette · Leasehold · £675,0002 years ago31 May 2024
- 16 CLIFTON AVENUE, LONDON, N3 1BNSemi-detached · £1,300,0003 years ago19 May 2023
- 3 CLIFTON AVENUE, LONDON, N3 1BNSemi-detached · £1,400,0003 years ago1 Mar 2023
- 26 CLIFTON AVENUE, LONDON, N3 1BNSemi-detached · £1,275,0005 years ago30 Sept 2021
- 22 CLIFTON AVENUE, LONDON, N3 1BNDetached · £1,500,0005 years ago25 Jun 2021
- 17 CLIFTON AVENUE, LONDON, N3 1BNSemi-detached · £1,585,0005 years ago18 Dec 2020
- 3 CLIFTON AVENUE, LONDON, N3 1BNSemi-detached · £1,175,0007 years ago8 Aug 2019
Homes here go for about £1,327,500 — the median of the last 8 market sales in N3 1BN, £675,000 to £1,585,000.
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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