37 Cornwall Avenue London Borough of Barnet N3 1LG
Conversion of the existing dwelling into 2no. self-contained flats including single storey rear extension with green roof and parapet, front porch infill, first floor rear terrace area with obscure glazing, roof extension involving rear dormer window and 4no. front facing rooflights
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Progress
Application details
- Reference
- 25/4558/FUL
- Local authority
- Barnet
- Postcode
- N3 1LG
- Ward
- WF22
- Application type
- All Other
- Property type
- Flat
Key dates
- Submitted
- 17 Nov 2025
- Validated
- 17 Nov 2025
- Comments close
- 11 Dec 2025
- Target decision
- 12 Jan 2026
- Decided
- 12 Jan 2026
Estimated project value
£120k–£245k
Based on the 73.0m² 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: 73m²
Recently sold nearby
Inside the two years most owners do their major work — kitchens, bathrooms, rewires and lofts.
- FLAT 2, 24 CORNWALL AVENUE, LONDON, N3 1LGFlat or maisonette · Leasehold · £499,9997 months ago30 Jan 2026
- 39 CORNWALL AVENUE, LONDON, N3 1LGTerraced · £985,0002 years ago25 Jun 2024
- FLAT 1, 24 CORNWALL AVENUE, LONDON, N3 1LGFlat or maisonette · Leasehold · £494,0004 years ago28 Feb 2022
- 28 CORNWALL AVENUE, LONDON, N3 1LGTerraced · £715,0009 years ago2 Feb 2017
- FLAT 2, 24 CORNWALL AVENUE, LONDON, N3 1LGFlat or maisonette · Leasehold · £525,0009 years ago16 Dec 2016
- FLAT 1, 24 CORNWALL AVENUE, LONDON, N3 1LGFlat or maisonette · Leasehold · £525,00010 years ago12 Aug 2016
- 24 CORNWALL AVENUE, LONDON, N3 1LGTerraced · Not a standard market sale · £525,00011 years ago12 Mar 2015
- LOWER MAISONETTE, 26 CORNWALL AVENUE, LONDON, N3 1LGFlat or maisonette · Leasehold · £290,00013 years ago14 Feb 2013
Homes here go for about £525,000 — the median of the last 7 market sales in N3 1LG, £290,000 to £985,000.
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.
Nearby applications
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