37 Cornwall Avenue London Borough of Barnet N3 1LG
Roof extension with rear dormer windows with 4no. front facing rooflights. Front porch infill
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
- 25/2489/192
- Local authority
- Barnet
- Postcode
- N3 1LG
- Ward
- WF22
- Application type
- All Other
- Property type
- House
Key dates
- Submitted
- 16 Jun 2025
- Validated
- 16 Jun 2025
- Target decision
- 11 Aug 2025
- Decided
- 1 Jul 2025
Estimated project value
£62k–£130k
Based on the 38.0m² 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: 38m² · 2 additional bedrooms
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
- Cornwall Avenue Barnet N3 1LGPermittedNext door
- 37 Cornwall Avenue London Borough of Barnet N3 1LGWithdrawnNext door
- 37 Cornwall Avenue London Borough of Barnet N3 1LGRefusedNext door
- 37 Cornwall Avenue London Borough of Barnet N3 1LGPermittedNext door
- 39 Cornwall Avenue London Borough of Barnet N3 1LGPermittedNext door
- 39 Cornwall Avenue London Borough of Barnet N3 1LGPendingNext door