12 Marlborough Avenue London Borough of Barnet HA8 8UH
Roof extension involving side/rear wraparound dormer
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Progress
Application details
- Reference
- 26/0630/192
- Local authority
- Barnet
- Postcode
- HA8 8UH
- Ward
- EY22
- Application type
- All Other
- Property type
- House
Key dates
- Submitted
- 18 Feb 2026
- Validated
- 18 Feb 2026
- Target decision
- 15 Apr 2026
- Decided
- 15 Apr 2026
Estimated project value
£35k–£94k
Typical UK cost for this job type, at outer 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.
- 7 MARLBOROUGH AVENUE, EDGWARE, HA8 8UHSemi-detached · £340,75021 months ago22 Nov 2024
- 12 MARLBOROUGH AVENUE, EDGWARE, HA8 8UHDetached · £595,0002 years ago10 May 2024
- 19 MARLBOROUGH AVENUE, EDGWARE, HA8 8UHSemi-detached · Not a standard market sale · £550,0002 years ago12 Apr 2024
- 4 MARLBOROUGH AVENUE, EDGWARE, HA8 8UHSemi-detached · £570,0004 years ago23 Dec 2021
- 28 MARLBOROUGH AVENUE, EDGWARE, HA8 8UHSemi-detached · £610,0005 years ago7 May 2021
- 5 MARLBOROUGH AVENUE, EDGWARE, HA8 8UHSemi-detached · £490,00011 years ago24 Feb 2015
- 26A MARLBOROUGH AVENUE, EDGWARE, HA8 8UHDetached · £544,00011 years ago18 Dec 2014
- 3 MARLBOROUGH AVENUE, EDGWARE, HA8 8UHSemi-detached · £435,00011 years ago24 Oct 2014
Homes here go for about £544,000 — the median of the last 7 market sales in HA8 8UH, £340,750 to £610,000.
Contains HM Land Registry data © Crown copyright and database right 2024. 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
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