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17 Windmill Drive Croxley Green Rickmansworth Hertfordshire WD3 3FF

25/0787/CLPDCertificate of Lawfulness - Proposed UseApproved
Outline / PiP

Approved on 23 July 2025

Delegated (officer decision)

Approximate site (title boundary)
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.

Proposal

Certificate of Lawfulness Proposed Development: Construction of front porch extension; and conversion of existing garage to habitable accommodation, including increase to height of side roof.

Received
7 May 2025
Decision level
Delegated (officer decision)
Ward
Dickinsons
  1. Received7 May
  2. Validated2 Jun
  3. Consult.
  4. Target28 Jul
  5. Decided23 Jul

Decided in 51 days (council typically 56)

About this application

This is an outline application for a porch at 17 Windmill Drive Croxley Green Rickmansworth Hertfordshire WD3 3FF. Three Rivers has handled 531 applications of this type. This one was decided in 77 days, 3 weeks longer than Three Rivers's typical decision time. The site is in 2 listed buildings nearby. There are no previous applications recorded at this address. In the past year there have been 47 applications across Dickinsons. We hold 2,814 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.See what's approved near your address

Application details

Postcode
WD3 3FF
Application type
Certificate of Lawfulness - Proposed Use
Scale / size
Small
Parish
Croxley Green Parish Council

Planning application dates

Date validated
2 June 2025
Target decision date
28 July 2025
Decision issued
24 July 2025

Planning decision

Statutory period
56 days

Additional information

Planning Portal ID
PP-13997104
Comments
0
Documents
18
Constraints
17

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • Brownfield land register: Greystone Works, The Green, Croxley GreenRegister site at or near this address
  • 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 (21)

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 and heritage coasts.

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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