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land adjacent to Markyate Sewage Treatment Works, Watling Street, Markyate, Hertfordshire, AL3 8HJ

PL\0404\12AmendmentApproved
Discharge / amendments

Approved on 10 July 2012

Council decision: Conditionally Permitted

Approximate location: the centre of the postcode, not the exact property.

Proposal

Proposed change of use of land to Thames Water operational land and the installation of a reed bed treatment plant with associated works

Received
24 January 2012
  1. Received24 Jan
  2. Validated24 Jan
  3. Consult.29 Feb
  4. Target
  5. Decided10 Jul

Decided in 168 days (council typically 147)

About this application

This is an application to amend a permission at land adjacent to Markyate Sewage Treatment Works, Watling Street, Markyate, Hertfordshire, AL3 8HJ. Hertfordshire has handled 13 applications of this type. This one was decided in 168 days, 3 weeks longer than Hertfordshire's typical decision time. There are no previous applications recorded at this address. We hold 2,256 applications in total for the AL3 postcode area.

Across all application types, Hertfordshire County Council typically decides in about 21 weeks (median).

Based on decided applications received in the last 3 years.Planning something similar? See what gets approved on your street

Application details

Postcode
AL3 8HJ
Application type
Amendment
Scale / size
Small

Planning application dates

Date validated
24 January 2012
Consultation expiry
29 February 2012
Consultation end
29 February 2012

Additional information

Documents
18

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

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

  • Green belt: Dacorum
  • Flood zone 1: Low probability (rivers and sea)

Possibly incomplete for this council: conservation areas, Article 4 directions, tree preservation orders and brownfield registers.

Also checked, none recorded (19)

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 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: Hertfordshire

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