1 Rosemary Avenue London Borough of Barnet N3 2QP
Single storey rear extension with 2no. rooflights, following demolition of existing sunroom and rear outrigger.
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Progress
Application details
- Reference
- 25/2642/HSE
- Local authority
- Barnet
- Postcode
- N3 2QP
- Ward
- FC22
- Application type
- Householder
- Property type
- House
Key dates
- Submitted
- 30 Jun 2025
- Validated
- 30 Jun 2025
- Target decision
- 25 Aug 2025
- Decided
- 30 Jul 2025
Estimated project value
£49k–£81k
Based on the 20.0m² of floor area stated in the application, at inner London rates (2026). Source: FMB / Checkatrade 2026, single-storey extension £1,800-£3,000/m².
Floor area gained: 20m²
Recently sold nearby
Inside the two years most owners do their major work — kitchens, bathrooms, rewires and lofts. 2 recent sales are listed below.
- 51 ROSEMARY AVENUE, LONDON, N3 2QPSemi-detached · £1,160,0009 months ago1 Dec 2025
- 51 ROSEMARY AVENUE, LONDON, N3 2QPSemi-detached · Not a standard market sale · £680,00022 months ago11 Nov 2024
- 27 ROSEMARY AVENUE, LONDON, N3 2QPTerraced · £825,0003 years ago11 Nov 2022
- 23 ROSEMARY AVENUE, LONDON, N3 2QPTerraced · £720,0006 years ago17 Jul 2020
- 21 ROSEMARY AVENUE, LONDON, N3 2QPTerraced · £200,0006 years ago14 Oct 2019
- 1 ROSEMARY AVENUE, LONDON, N3 2QPTerraced · £735,0008 years ago25 Jul 2018
- 41 ROSEMARY AVENUE, LONDON, N3 2QPSemi-detached · £747,5009 years ago17 Feb 2017
- 5 ROSEMARY AVENUE, LONDON, N3 2QPTerraced · £530,00013 years ago1 Mar 2013
Homes here go for about £735,000 — the median of the last 7 market sales in N3 2QP, £200,000 to £1,160,000.
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.
Nearby applications
- 1 Rosemary Avenue London Borough of Barnet N3 2QPRefusedNext door
- 1 Rosemary Avenue London Borough of Barnet N3 2QPPermittedNext door
- 14 Dudley Road London Borough of Barnet N3 2QRRefusedNext door
- 14 Dudley Road London Borough of Barnet N3 2QRRefusedNext door
- 14 Dudley Road London Borough of Barnet N3 2QRPermittedNext door
- 14 Dudley Road London Borough of Barnet N3 2QRWithdrawnAdjoining