17 Downage London Borough of Barnet NW4 1AS
Conversion of garage into habitable room, insertion of window to replace garage door. First floor front extension. Alterations to front entrance including removal of front porch. Part single, part two storey rear extension. Roof extension with 4no rooflights. Removal of chimney.
Tracking, tags and letters are part of the paid plan. See what it costs. Searching and reading any record stays free.
Progress
Application details
- Reference
- 15/06402/HSE
- Local authority
- Barnet
- Postcode
- NW4 1AS
- Ward
- HD
- Application type
- Householder
- Property type
- House
Key dates
- Submitted
- 19 Oct 2015
- Validated
- 19 Oct 2015
- Target decision
- 14 Dec 2015
- Decided
- 14 Dec 2015
Estimated project value
£37k–£100k
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: Checkatrade 2026 loft conversion cost guide.
Recently sold nearby
Inside the two years most owners do their major work — kitchens, bathrooms, rewires and lofts.
- 17 DOWNAGE, LONDON, NW4 1ASDetached · £2,200,00014 months ago1 Jul 2025
- 11 DOWNAGE, LONDON, NW4 1ASDetached · £1,485,0006 years ago11 Oct 2019
- 47 DOWNAGE, LONDON, NW4 1ASDetached · £1,650,00011 years ago26 Feb 2015
- 3 DOWNAGE, LONDON, NW4 1ASDetached · £1,800,00012 years ago2 Dec 2013
- 9 DOWNAGE, LONDON, NW4 1ASDetached · £1,350,00013 years ago18 Mar 2013
- 21 DOWNAGE, LONDON, NW4 1ASDetached · £1,190,00014 years ago19 Dec 2011
- 17 DOWNAGE, LONDON, NW4 1ASDetached · £999,95015 years ago15 Aug 2011
- 19 DOWNAGE, LONDON, NW4 1ASDetached · £1,120,00017 years ago17 Aug 2009
Homes here go for about £1,417,500 — the median of the last 8 market sales in NW4 1AS, £999,950 to £2,200,000.
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
- 17 Downage London Borough of Barnet NW4 1ASPermittedNext door
- 17 Downage London Borough of Barnet NW4 1ASPermittedNext door
- 21 Downage London Borough of Barnet NW4 1ASPermittedAdjoining
- 11 Downage London Borough of Barnet NW4 1ASPermittedAdjoining
- 11 Downage London Borough of Barnet NW4 1ASRefusedAdjoining
- 11 Downage London Borough of Barnet NW4 1ASRefusedAdjoining