9 Park Avenue London Borough of Barnet NW11 7SL
Single storey rear extension, with new terrace area and retaining wall in garden. External level drop-down. Alterations to roof of existing ground floor rear projection/kitchen
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Progress
Application details
- Reference
- 21/5665/HSE
- Local authority
- Barnet
- Postcode
- NW11 7SL
- Ward
- CH
- Application type
- Householder
- Property type
- House
Key dates
- Submitted
- 25 Oct 2021
- Validated
- 25 Oct 2021
- Target decision
- 20 Dec 2021
- Decided
- 20 Dec 2021
Estimated project value
£32k–£54k
Based on the 13.2m² 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: 13.18m²
Recently sold nearby
Inside the two years most owners do their major work — kitchens, bathrooms, rewires and lofts.
- 3 PARK AVENUE, LONDON, NW11 7SLDetached · £1,450,00016 months ago20 Jun 2025
- 13 PARK AVENUE, LONDON, NW11 7SLDetached · £2,530,0005 years ago15 Feb 2021
- 13 PARK AVENUE, LONDON, NW11 7SLDetached · £1,910,00013 years ago6 Nov 2012
- 21 PARK AVENUE, LONDON, NW11 7SLDetached · £1,500,00014 years ago10 Aug 2012
- 17 PARK AVENUE, LONDON, NW11 7SLDetached · £1,940,00014 years ago12 Jun 2012
- 5 PARK AVENUE, LONDON, NW11 7SLSemi-detached · £1,265,00014 years ago25 Nov 2011
- 1 PARK AVENUE, LONDON, NW11 7SLDetached · £3,050,00015 years ago31 Jan 2011
- 17 PARK AVENUE, LONDON, NW11 7SLDetached · £1,120,00017 years ago30 Jun 2009
Homes here go for about £1,705,000 — the median of the last 8 market sales in NW11 7SL, £1,120,000 to £3,050,000.
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
- 9 Park Avenue London Borough of Barnet NW11 7SLPermittedNext door
- 9 Park Avenue London Borough of Barnet NW11 7SLRefusedNext door
- 9 Park Avenue London Borough of Barnet NW11 7SLPermittedNext door
- 13 Park Avenue London Borough of Barnet NW11 7SLPermittedAdjoining
- 10 The Park Barnet NW11 7SUPermittedAdjoining
- 6 The Park London Borough of Barnet NW11 7SUPermittedAdjoining