39 Highfield Way Rickmansworth Hertfordshire WD3 7PP
Refused on 27 May 2026
Delegated (officer decision)1 reason for refusal
Proposal
Prior Approval: Single storey rear extension (depth 5.00 metres, maximum height 2.99 metres, maximum eaves height 2.99 metres)
- Received
- 22 April 2026
- Decision level
- Delegated (officer decision)
- Ward
- Rickmansworth Town
- Agent
- H-Jag Architecture
- ReceivedReceived22 Apr
- ValidatedValidated22 Apr
- Consult.Consultation15 May
- TargetTarget Date3 Jun
- DecidedDecided27 May
Decided in 35 days (council typically 56)
About this application
This is an outline application for a single storey rear extension at 39 Highfield Way Rickmansworth Hertfordshire WD3 7PP. Three Rivers has handled 531 applications of this type. This one was decided in 35 days, 3 weeks quicker than Three Rivers's typical decision time. There are no previous applications recorded at this address. In the past year there have been 80 applications across Rickmansworth Town. We hold 2,818 applications in total for the WD3 postcode area.
92% of outline applications at Three Rivers District Council were approved. Across all application types, the council typically decides in about 8 weeks (median).
Based on decided applications received in the last 3 years.Planning something similar? See what gets approved on your street
Why it was refused
- Due to the original stepped rear elevation to the dwelling, the proposed extension would extend beyond a wall forming a side elevation of the original dwellinghouse and would have a width greater than half the width of the original dwellinghouse. The proposed development would fail to comply with A.1 (j) (iii) under Schedule 2 Part 1 Class A of the Town and Country Planning (General Permitted Development) Order 2015 (as amended). Kimberley Rowley Head of Regulatory Services Three Rivers District Council, Three Rivers House, Northway, Rickmansworth, Herts WD3 1RL
From the council's decision notice.
Application details
- Postcode
- WD3 7PP
- Application type
- PD - Extensions
- Scale / size
- Small
- Parish
- Chorleywood Parish Council
Planning application dates
- Date validated
- 22 April 2026
- Consultation expiry
- 15 May 2026
- Neighbour consultation end
- 15 May 2026
- Target decision date
- 3 June 2026
Applicant and agent
- Agent
- H-Jag Architecture
- Architect profile
- H-JAG LTD
- Agent address
- H-Jag Architecture 5 Birch Drive Rickmansworth WD3 9UL GB
Planning decision
- Statutory period
- 42 days
Site 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. Ask the council if these matter.
Possibly incomplete for this council: tree preservation orders.
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 2026-11-03. 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.
Source: Three Rivers
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Around this site
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For applicants and trades
Contractors near this project
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Planning something similar?
See what the council approved and refused for single-storey rear extensions on your street. Pick your home and get the evidence before you pay for drawings.