147 Cassiobury Drive Watford WD17 3AH
Proposal
The erection of a single storey rear extension which would extend beyond the rear wall of the original house by 7.70m for which the maximum height would be 2.98m and for which the height of the eaves would be 2.98m
- Received
- 13 January 2025
- Decided
- 4 March 2025 · Grant HPD Prior Approval
- Decision level
- Delegated (officer decision)
- Council
- Watford Borough Council
- Ward
- Park
Boundary © HM Land Registry, © Ordnance Survey · details
This information is subject to Crown copyright and database rights 2026 and is reproduced with the permission of HM Land Registry. The polygons (including the associated geometry, namely x, y co-ordinates) are subject to Crown copyright and database rights 2026 Ordnance Survey AC0000851063. Conditions of use.
- ReceivedSubmitted13 Jan
- ValidatedValidated21 Jan
- Consult.Consultation11 Feb
- TargetTarget Date4 Mar
- DecidedDecided4 Mar
Decided in 42 days (council typically 49)
This is an outline application for a single storey rear extension at 147 Cassiobury Drive Watford WD17 3AH. Watford has handled 212 applications of this type and approves 60% of them, typically deciding them in 38 days. This one was decided in 50 days, 12 days longer than Watford's median. There have been 2 other applications at this address. In the past year there have been 75 applications across Park. We hold 1,528 applications in total for the WD17 postcode area.
Application Details
Applicant & Agent
Planning Application Dates
Planning Decision
Publicity
Appeal
Additional Information
Source: Watford
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Associated applications
- 202513 Jan
The erection of a single storey rear extension which would extend beyond the rear wall of the original house…
This applicationApprovedOutline25/00029/HPD - 202513 Jan
Erection of a part single part two storey rear extension.
Conditional Planning PermissionHouseholderFiled alongside25/00030/FULH - 202513 Jan
Lawful Development Certificate for construction of outbuilding to rear garden.
ApprovedLawful Development CertificateFiled alongside25/00031/LDC
Planning constraints
Designations that overlap or adjoin the site outline.
- Flood zone 1: Low probability (rivers and sea)
Not published by this council, so not checked: Article 4 directions and tree preservation orders. Ask the council if these matter.
Also checked, none recorded (22)
flood storage areas, conservation areas, listed buildings, green belt, scheduled monuments, World Heritage Sites, World Heritage Site buffer zones, registered parks and gardens, registered battlefields, Heritage at Risk entries, nutrient neutrality catchments, national parks, National Landscapes, SSSIs, Special Areas of Conservation, Special Protection Areas, Ramsar sites, ancient woodland, national nature reserves, local nature reserves, heritage coasts and brownfield registers.
A guide only, from official open data; it is not a planning search. Flood zones cover rivers and sea, not surface water.
Data © Crown copyright and others · sources and licences
Contains public sector information from planning.data.gov.uk (MHCLG and local planning authorities), licensed under the Open Government Licence v3.0. © Crown copyright and database right 2026.
© Historic England 2026. Contains Ordnance Survey data © Crown copyright and database right 2026. The Historic England GIS Data contained in this material was obtained on 2026-10-09. The most publicly available up to date Historic England GIS Data can be obtained from HistoricEngland.org.uk.
© Natural England copyright. Contains Ordnance Survey data © Crown copyright and database right 2026.
© Environment Agency copyright and/or database right 2026. All rights reserved. Flood Map for Planning, Open Government Licence v3.0.
Contains Ordnance Survey data © Crown copyright and database right 2026.
Source: Office for National Statistics licensed under the Open Government Licence v.3.0. Contains OS data © Crown copyright and database right 2026.
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