13 Tretawn Gardens London Borough of Barnet NW7 4NP
Single storey rear extension with a proposed depth of 5.00 metres from original rear wall, maximum height of 4.00 metres and eaves height of 3.00 metres. Installation of 2no rooflights and 1no lantern rooflight in the middle of the flat roof (Amended Description).
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Progress
Application details
- Reference
- 23/3103/PNH
- Local authority
- Barnet
- Postcode
- NW7 4NP
- Ward
- MH22
- Application type
- Prior Approval
- Property type
- Flat
Key dates
- Submitted
- 17 Jul 2023
- Validated
- 17 Jul 2023
- Target decision
- 28 Aug 2023
- Decided
- 22 Aug 2023
Estimated project value
£97k–£160k
Based on the 40.0m² 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: 40m²
Recently sold nearby
New owners, recently moved in. First work on a house usually follows within months of completing. 2 recent sales are listed below.
- 19 TRETAWN GARDENS, LONDON, NW7 4NPDetached · £1,725,0003 months ago30 Jun 2026
- 43 TRETAWN GARDENS, LONDON, NW7 4NPDetached · £900,0006 months ago24 Apr 2026
- 27 TRETAWN GARDENS, LONDON, NW7 4NPDetached · £1,550,0006 years ago29 Sept 2020
- 7 TRETAWN GARDENS, LONDON, NW7 4NPDetached · £1,950,0006 years ago18 Jun 2020
- 3 TRETAWN GARDENS, LONDON, NW7 4NPDetached · £1,350,0007 years ago4 Jul 2019
- 7 TRETAWN GARDENS, LONDON, NW7 4NPDetached · Not a standard market sale · £730,0008 years ago3 Sept 2018
- 33 TRETAWN GARDENS, LONDON, NW7 4NPDetached · £877,5008 years ago27 Apr 2018
- 43 TRETAWN GARDENS, LONDON, NW7 4NPDetached · £757,5008 years ago22 Feb 2018
Homes here go for about £1,350,000 — the median of the last 7 market sales in NW7 4NP, £757,500 to £1,950,000.
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.
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