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Oakhill Long Lane Heronsgate Rickmansworth Hertfordshire WD3 5BT

26/1587/FULAwaiting decision
Site boundary (council red line)

Proposal

Demolition of existing extensions and pool house, construction of part single, part two storey side and rear extensions; construction of detached pool house and garage building; associated landscape works; alterations to the fenestration; internal alterations

Submitted
27 October 2026
  1. Received27 Oct
  2. Validated
  3. Consult.
  4. Target
  5. Decided

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About this application

This is a planning application for demolition at Oakhill Long Lane Heronsgate Rickmansworth Hertfordshire WD3 5BT. Three Rivers has handled 4,297 applications of this type. It has been with the council since 27 October 2026 and is still awaiting a decision. The site is in the Heronsgate conservation area. There have been 3 other applications at this address. We hold 2,814 applications in total for the WD3 postcode area.

Application details

Postcode
WD3 5BT

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • Conservation area: Heronsgate
  • Green belt: Three RiversPart of the site
  • 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 (20)

flood storage areas, listed buildings, 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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