77 Northiam London Borough of Barnet N12 7JH
Conversion of garage and storage into habitable rooms and formation of raised partial flat, partial mono-pitched roof element. Addition of first floor window facing No. 75 Northiam. Installation of 16no. solar panels to rear roofslope of main roof. Reduction in depth of single storey side extension facing No. 79 Northiam and new raised flat roof. Alteration and extension to rear patio
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Progress
Application details
- Reference
- 22/3587/HSE
- Local authority
- Barnet
- Postcode
- N12 7JH
- Ward
- TW22
- Application type
- Householder
- Property type
- Flat
Key dates
- Submitted
- 4 Aug 2022
- Validated
- 4 Aug 2022
- Target decision
- 29 Sept 2022
- Decided
- 29 Sept 2022
Estimated project value
£41k–£75k
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: MyJobQuote / Checkatrade 2026, ~20m² at £1,800-£3,000/m².
Recently sold nearby
Inside the two years most owners do their major work — kitchens, bathrooms, rewires and lofts. 3 recent sales are listed below.
- 51 NORTHIAM, LONDON, N12 7JHSemi-detached · £1,715,00013 months ago11 Aug 2025
- 49 NORTHIAM, LONDON, N12 7JHSemi-detached · £1,711,40021 months ago12 Nov 2024
- 75 NORTHIAM, LONDON, N12 7JHSemi-detached · £1,085,00022 months ago21 Oct 2024
- 59 NORTHIAM, LONDON, N12 7JHSemi-detached · £1,220,0005 years ago18 Feb 2021
- 71 NORTHIAM, LONDON, N12 7JHSemi-detached · £900,0007 years ago6 Dec 2018
- 77 NORTHIAM, LONDON, N12 7JHDetached · £1,075,0009 years ago14 Oct 2016
- 55 NORTHIAM, LONDON, N12 7JHSemi-detached · £950,00010 years ago20 Nov 2015
- 81 NORTHIAM, LONDON, N12 7JHDetached · £1,100,00013 years ago30 Jul 2013
Homes here go for about £1,092,500 — the median of the last 8 market sales in N12 7JH, £900,000 to £1,715,000.
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
- 77 Northiam London Borough of Barnet N12 7JHPermittedNext door
- 75 Northiam London Borough of Barnet N12 7JHPermittedNext door
- 75 Northiam London Borough of Barnet N12 7JHWithdrawnNext door
- 79 Northiam London Borough of Barnet N12 7JHPermittedNext door
- 71 Northiam London Borough of Barnet N12 7JHPermittedAdjoining
- 56 Northiam London Borough of Barnet N12 7HJPermitted53 yd