17 Thatcham Gardens London Borough of Barnet N20 9QE
Part single, part two storey rear extension with alterations to the existing access steps and first floor rear juliette balconies following demolition of the existing single storey rear extension and outbuilding
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Progress
Application details
- Reference
- 26/3638/HSE
- Local authority
- Barnet
- Postcode
- N20 9QE
- Ward
- BV22
- Application type
- Householder
- Property type
- House
Key dates
- Submitted
- 8 Oct 2026
- Validated
- 8 Oct 2026
- Target decision
- 3 Dec 2026
Estimated project value
£160k–£225k
Based on the 59.0m² of floor area stated in the application, at inner London rates (2026). Source: FMB / Checkatrade 2026, two-storey extension £2,000-£2,800/m².
Floor area gained: 59m²
Recently sold nearby
Nothing on this postcode has changed hands in the last two years. The sales below are for pricing rather than a lead.
- 3 THATCHAM GARDENS, LONDON, N20 9QEDetached · £1,150,0005 years ago16 Feb 2021
- 11 THATCHAM GARDENS, LONDON, N20 9QEDetached · £925,0007 years ago2 Sept 2019
- 3 THATCHAM GARDENS, LONDON, N20 9QEDetached · £622,0007 years ago28 May 2019
- 15 THATCHAM GARDENS, LONDON, N20 9QEDetached · £822,00010 years ago26 Jul 2016
- 1 THATCHAM GARDENS, LONDON, N20 9QEDetached · £715,00011 years ago9 Sept 2015
- 17 THATCHAM GARDENS, LONDON, N20 9QEDetached · £765,00012 years ago9 May 2014
- 19 THATCHAM GARDENS, LONDON, N20 9QEDetached · £820,00014 years ago21 Feb 2012
- 11 THATCHAM GARDENS, LONDON, N20 9QEDetached · £472,00019 years ago5 Oct 2007
Homes here go for about £792,500 — the median of the last 8 market sales in N20 9QE, £472,000 to £1,150,000.
Contains HM Land Registry data © Crown copyright and database right 2021. 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.
Recorded changes
- 22 Oct 2026: The proposal was amended
- 13 Oct 2026: The proposal was amended
Nearby applications
- 17 Thatcham Gardens London Borough of Barnet N20 9QEPermittedNext door
- 13 Thatcham Gardens London Borough of Barnet N20 9QEPermittedAdjoining
- 13 Thatcham Gardens London Borough of Barnet N20 9QERefusedAdjoining
- London Borough of BarnetPermittedAdjoining
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- 15 Friern Mount Drive London Borough of Barnet N20 9DPPermitted65 yd