139 Cannonbury Avenue Harrow HA5 1TR
Single storey front extension incoporating porch; single and two storey side to rear extension; single storey rear extension; external alterations (demolition of attached garage and side extension)
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Progress
Application details
- Reference
- P/3689/21
- Local authority
- Harrow
- Postcode
- HA5 1TR
- Ward
- Pinner South
- Application type
- Householder
- Property type
- House
Key dates
- Submitted
- 6 Sept 2021
- Validated
- 6 Sept 2021
- Comments close
- 14 Oct 2021
- Target decision
- 1 Nov 2021
- Decided
- 1 Nov 2021
Estimated project value
£99k–£165k
Based on the 44.0m² of floor area stated in the application, at outer London rates (2026). Source: FMB / Checkatrade 2026, single-storey extension £1,800-£3,000/m².
Floor area gained: 44m² · 1 additional bedrooms
Recently sold nearby
Inside the two years most owners do their major work — kitchens, bathrooms, rewires and lofts. 2 recent sales are listed below.
- 141 CANNONBURY AVENUE, PINNER, HA5 1TRSemi-detached · £625,00017 months ago24 Mar 2025
- 79 CANNONBURY AVENUE, PINNER, HA5 1TRTerraced · £740,00018 months ago14 Feb 2025
- 139 CANNONBURY AVENUE, PINNER, HA5 1TRSemi-detached · £685,0004 years ago24 Sept 2021
- 113 CANNONBURY AVENUE, PINNER, HA5 1TRSemi-detached · £600,0005 years ago22 Jun 2021
- 69 CANNONBURY AVENUE, PINNER, HA5 1TRSemi-detached · £830,0006 years ago31 Jul 2020
- 79 CANNONBURY AVENUE, PINNER, HA5 1TRTerraced · £630,0009 years ago11 Sept 2017
- 87 CANNONBURY AVENUE, PINNER, HA5 1TRSemi-detached · £167,00010 years ago30 Oct 2015
- 119 CANNONBURY AVENUE, PINNER, HA5 1TRTerraced · £610,00011 years ago6 Aug 2015
Homes here go for about £627,500 — the median of the last 8 market sales in HA5 1TR, £167,000 to £830,000.
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
- 141 CANNONBURY AVENUE Harrow HA5 1TRWithdrawnNext door
- Cannonbury Avenue Harrow HA5 1TRPermittedNext door
- 142 Harrow HA5 1TTPending54 yd
- 191 Harrow HA5 1HYPending60 yd
- 187A Harrow HA5 1HYPending66 yd
- 187A Cannon Lane Harrow HA5 1HYPermitted66 yd