8 DERWENT AVENUE Harrow HA5 4QJ
Front porch and relocation of entrance to front; single storey side to rear extension; creation of first floor to bungalow to form two storey dwellinghouse; first floor side extension; two front dormers and one rear; landscaping; external alterations
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Progress
Application details
- Reference
- PL/2178/26
- Local authority
- Harrow
- Postcode
- HA5 4QJ
- Ward
- Hatch End
- Application type
- Householder
- Property type
- House
Key dates
- Submitted
- 17 Sept 2026
- Validated
- 17 Sept 2026
- Comments close
- 15 Oct 2026
- Target decision
- 12 Nov 2026
Estimated project value
£165k–£345k
Based on the 110m² of floor area stated in the application, at outer London rates (2026). Source: Checkatrade 2026, loft conversion £1,200-£2,500/m².
Floor area gained: 110m² · 3 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.
- 16 DERWENT AVENUE, PINNER, HA5 4QJSemi-detached · £534,0007 months ago19 Mar 2026
- 2 DERWENT AVENUE, PINNER, HA5 4QJSemi-detached · £542,50023 months ago8 Nov 2024
- 42 DERWENT AVENUE, PINNER, HA5 4QJSemi-detached · £521,0003 years ago5 Sept 2023
- 30 DERWENT AVENUE, PINNER, HA5 4QJDetached · £745,0003 years ago12 May 2023
- 18 DERWENT AVENUE, PINNER, HA5 4QJSemi-detached · £575,0006 years ago27 May 2020
- 6 DERWENT AVENUE, PINNER, HA5 4QJSemi-detached · £545,0007 years ago21 Jun 2019
- 34 DERWENT AVENUE, PINNER, HA5 4QJDetached · £905,0007 years ago22 Mar 2019
- 32 DERWENT AVENUE, PINNER, HA5 4QJDetached · £825,00010 years ago4 Mar 2016
Homes here go for about £560,000 — the median of the last 8 market sales in HA5 4QJ, £521,000 to £905,000.
Contains HM Land Registry data © Crown copyright and database right 2026. 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
- 8A DERWENT AVENUE Harrow HA5 4QJRefusedNext door
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- 15 DERWENT AVENUE Harrow HA5 4QHPermitted72 yd
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- 27 DERWENT AVENUE Harrow HA5 4QHPending123 yd