59 Mayfield Avenue London Borough of Barnet N12 9JG
Erection of a rear outbuilding (Retrospective Application) (AMENDED DRAWINGS).
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Progress
Application details
- Reference
- 21/6427/RCU
- Local authority
- Barnet
- Postcode
- N12 9JG
- Ward
- WO
- Application type
- All Other
- Property type
- House
Key dates
- Submitted
- 9 Dec 2021
- Validated
- 9 Dec 2021
- Target decision
- 3 Feb 2022
- Decided
- 1 Mar 2022
Estimated project value
£11k–£41k
Typical UK cost for this job type, at inner London rates (2026). Estimated from the proposal description — planning applications do not state build cost. Source: trade estimate.
Floor area gained: 30m²
Recently sold nearby
Inside the two years most owners do their major work — kitchens, bathrooms, rewires and lofts.
- 43 MAYFIELD AVENUE, LONDON, N12 9JGTerraced · £780,00020 months ago8 Jan 2025
- 27 MAYFIELD AVENUE, LONDON, N12 9JGTerraced · £850,0004 years ago9 Feb 2022
- 21 MAYFIELD AVENUE, LONDON, N12 9JGTerraced · £695,0005 years ago16 Jun 2021
- 9 MAYFIELD AVENUE, LONDON, N12 9JGTerraced · £720,0005 years ago18 Feb 2021
- 33 MAYFIELD AVENUE, LONDON, N12 9JGTerraced · £727,5007 years ago24 May 2019
- 1 MAYFIELD AVENUE, LONDON, N12 9JGDetached · £885,0007 years ago18 Apr 2019
- 17 MAYFIELD AVENUE, LONDON, N12 9JGTerraced · £650,0007 years ago18 Feb 2019
- 37 MAYFIELD AVENUE, LONDON, N12 9JGTerraced · £640,0009 years ago24 Mar 2017
Homes here go for about £723,750 — the median of the last 8 market sales in N12 9JG, £640,000 to £885,000.
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
- 61 Mayfield Avenue London Borough of Barnet N12 9JGPermittedNext door
- 3 Lynton Avenue London Borough of Barnet N12 9JHPermittedAdjoining
- 3 Lynton Avenue London Borough of Barnet N12 9JHRefusedAdjoining
- 5 Lynton Avenue London Borough of Barnet N12 9JHPermitted46 yd
- 3 Lynton Avenue London Borough of Barnet N12 9JHPermitted47 yd
- 5 Lynton Avenue London Borough of Barnet N12 9JHPermitted52 yd