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57 Williamson Way Mill End WD3 8GL

18/0810/CLPDCertificate of Lawfulness - Proposed UsePermitted
Outline / PiP

Proposal

Certificate of Lawfulness Proposed Development: Single storey rear extension

Received
18 April 2018
Decided
29 May 2018 · approved
Decision level
Delegated (officer decision)
Ward
Penn And Mill End
Approximate location: the centre of the postcode, not the exact property.
  1. Received18 Apr
  2. Validated30 Apr
  3. Consult.
  4. Target25 Jun
  5. Decided29 May

Decided in 29 days (council typically 56)

8 weeks typical decision time in Three Rivers92% of outline applications approved

This is an outline application for a single storey rear extension at 57 Williamson Way Mill End WD3 8GL. Three Rivers has handled 525 applications of this type and approves 91% of them, typically deciding them in 45 days. This one was decided in 41 days, 4 days quicker than Three Rivers's median. There are no previous applications recorded 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

Reference
18/0810/CLPD
Address
57 Williamson Way Mill End WD3 8GL
Postcode
WD3 8GL
Local Authority
Three Rivers
Application Type
Certificate of Lawfulness - Proposed Use
Scale / Size
Small
Decision Status
Permitted
Current Status
Decided
Ward
Penn And Mill End
Parish
Non-Parished

Applicant & Agent

Agent Address
CC architecture 10 Anglo Office Park Lincoln Road High Wycombe HP12 3RH Bucks

Planning Application Dates

Date Received
18 April 2018
Target Decision Date
25 June 2018
Date Decided
29 May 2018
Date Validated
30 April 2018
Date Submitted
18 April 2018
Permission Expires
29 May 2023

Planning Decision

Decision
approved
Decided By
Delegated Decision
Statutory Period
56 days

Publicity

Appeal

Additional Information

Planning Portal ID
PP-06902979
Comments
0
Documents
8
Constraints
8
Coordinates
51.639057, -0.496358
Enriching application data
2/3
Council recordsAppealsFlood risk

Source: Three Rivers

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Planning constraints

Designations at the address point. Ones next to the site may also apply.

  • 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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