1 Hall Close Mill End Rickmansworth Hertfordshire WD3 8US
Proposal
Construction of single-storey side and rear extension and front porch extension, alterations to front roof form over porch and garage, external materials including timber cladding
- Received
- 19 December 2025
- Decided
- 23 February 2026 · approved
- Decision level
- Delegated (officer decision)
- Ward
- Penn And Mill End
- ReceivedSubmitted19 Dec
- ValidatedValidated5 Jan
- Consult.Consultation27 Jan
- TargetTarget Date2 Mar
- DecidedDecided23 Feb
Decided in 49 days (council typically 56)
This is a full planning application for a rear extension at 1 Hall Close Mill End Rickmansworth Hertfordshire WD3 8US. Three Rivers has handled 1,357 applications of this type and approves 86% of them, typically deciding them in 58 days. This one was decided in 66 days, 8 days longer than Three Rivers's median. There has been 1 other application at this address. In the past year there have been 38 applications across Penn And Mill End. We hold 2,722 applications in total for the WD3 postcode area.
Application Details
Applicant & Agent
Planning Application Dates
Planning Decision
Publicity
Appeal
Additional Information
Source: Three Rivers
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Associated applications
- 202617 Apr
Variation of Condition 3(Materials) pursuant to planning permission 25/2203/FUL
ApprovedVariation of conditions (s73)26/0632/FUL - 202519 Dec
Construction of single-storey side and rear extension and front porch extension, alterations to front roof…
This applicationApprovedFull25/2203/FUL
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. 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 2026-10-09. 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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