18 Tretawn Gardens London Borough of Barnet NW7 4NR
Single storey front/side extension. Part single, part two storey rear extension. Excavation and creation of lower ground floor level to provide habitable space following removal of existing shed. Insertion of window to side elevation. Associated alterations to fenestration and installation of new rear terrace and access steps (Amended description.)
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Progress
Application details
- Reference
- 18/2048/HSE
- Local authority
- Barnet
- Postcode
- NW7 4NR
- Ward
- MH
- Application type
- Householder
- Property type
- House
Key dates
- Submitted
- 6 Apr 2018
- Validated
- 6 Apr 2018
- Target decision
- 1 Jun 2018
- Decided
- 20 Aug 2018
Estimated project value
£75k–£175k
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: FMB / Checkatrade 2026, £2,000-£2,800/m² over a larger floor area.
Recently sold nearby
Inside the two years most owners do their major work — kitchens, bathrooms, rewires and lofts. 2 recent sales are listed below.
- 44 TRETAWN GARDENS, LONDON, NW7 4NRDetached · £1,300,00010 months ago17 Oct 2025
- 40 TRETAWN GARDENS, LONDON, NW7 4NRDetached · £1,200,00012 months ago29 Aug 2025
- 46 TRETAWN GARDENS, LONDON, NW7 4NRDetached · £1,300,0004 years ago28 Jan 2022
- 26 TRETAWN GARDENS, LONDON, NW7 4NRDetached · £1,800,0005 years ago30 Jul 2021
- 8 TRETAWN GARDENS, LONDON, NW7 4NRSemi-detached · £1,675,0005 years ago27 Jan 2021
- 24 TRETAWN GARDENS, LONDON, NW7 4NRSemi-detached · £892,5005 years ago15 Dec 2020
- 50 TRETAWN GARDENS, LONDON, NW7 4NRDetached · £1,590,0009 years ago24 Feb 2017
- 6 TRETAWN GARDENS, LONDON, NW7 4NRDetached · £1,075,0009 years ago31 Oct 2016
Homes here go for about £1,300,000 — the median of the last 8 market sales in NW7 4NR, £892,500 to £1,800,000.
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
- 18 Tretawn Gardens London Borough of Barnet NW7 4NRPermittedNext door
- 16 Tretawn Gardens London Borough of Barnet NW7 4NRRefusedNext door
- 20 Tretawn Gardens London Borough of Barnet NW7 4NRPermittedNext door
- 16 Tretawn Gardens London Borough of Barnet NW7 4NRPermittedNext door
- 16 Tretawn Gardens London Borough of Barnet NW7 4NRPermittedNext door
- 16 Tretawn Gardens London Borough of Barnet NW7 4NRPermittedNext door