Council planning record

Installation of new plant and machinery to enable new water treatment process at existing treatment plant and all associated works at site of recently demolished plant building to include: Single actiflo Carb 5 unit, Actiflo Carb Recycl Pumps and hydrocyclone, PAC Storage Silo and conveyor system, New plant building, Wastewater recovery plant and New kiosk housing a new motor control centre

North Mymms Water Treatment Site, Warrengate Road, Brookmans Park, Hatfield, AL10 9EZ

Decided - GrantedReference: 6/2018/1498/FULLWelwyn Hatfield Borough Council

Last published check: 18 Oct 2026, 18:05. Check the council record for more recent changes.

Application timeline

Council milestones and published deadlines. A deadline passing does not confirm a decision.

  1. Date Received

    Published milestoneCouncil source
  2. Date Valid

    Published milestoneCouncil source
  3. Public Consultation Expiry

    Past published deadline

    A published target or deadline. It does not confirm an outcome.

    Council source
  4. Site Notice Expiry Date

    Past published deadline

    A published target or deadline. It does not confirm an outcome.

    Council source

Application summary

Status
Decided - Granted
Application type
FULL PERMISSION
Received
5 Jun 2018
Validated
16 Oct 2018
Determination deadline
Not published
Local authority
Welwyn Hatfield Borough Council

Application overview

Installation of new plant and machinery to enable new water treatment process at existing treatment plant and all associated works at site of recently demolished plant building to include: Single actiflo Carb 5 unit, Actiflo Carb Recycl Pumps and hydrocyclone, PAC Storage Silo and conveyor system, New plant building, Wastewater recovery plant and New kiosk housing a new motor control centre

Proposal details

Reference
6/2018/1498/FULL
Parish
North Mymms
Agent
Miss L Edwards

Sign in to view all collected council fields and recorded changes.

Sign in to view collected details

Application location

North Mymms Water Treatment Site, Warrengate Road, Brookmans Park, Hatfield, AL10 9EZ

This record has no verified map location.

Documents 66 of 66

DocumentPublishedAction
Description: Rear Elevation Of Filter Block00000049.pdf (0 kb)Not publishedView
Description: Main Pumphouse Elevations And Sections00000010.pdf (0 kb)Not publishedView
Description: Existing Elevations00000053.pdf (0 kb)Not publishedView
Description: General Elevations00000009.pdf (0 kb)Not publishedView
Description: North And South ElevationsPO18849-DR-293-0005 A.pdf (0 kb)Not publishedView
Description: East And West ElevationsPO18849-DR-293-0006 A.pdf (0 kb)Not publishedView
Description: Existing Planning Elevations Sheet 1 of 2 (Prior to demolition)P018849-DR-325-0053.pdf (0 kb)Not publishedView
Description: Existing Planning Elevations Sheet 2 of 2 (Prior to demolition)P018849-DR-325-0054.pdf (0 kb)Not publishedView
Description: Existing Planning Elevations Sheet 2 of 2 (Post demolition)P018849-DR-325-0054AA ex (004).pdf (0 kb)Not publishedView
Description: Existing Planning Elevations Sheet 1 of 2 (Prior to demolition)P018849-DR-325-0053AA (002).pdf (0 kb)Not publishedView
Description: Planning Elevations Sheet 2 of 2 (Proposed)P018849-DR-325-0051_iss1_revA.PDF (0 kb)Not publishedView
Description: Planning Elevations Sheet 1 of 2 (Proposed)P018849-DR-325-0050_iss1_revA.PDF (0 kb)Not publishedView
Description: Site Location PlanP018849-SK-326-0001(1).pdf (0 kb)Not publishedView
Description: Treatment Area Overall Site PlanP018849-SK-326-0003.pdf (0 kb)Not publishedView
Description: Treatment Area Sections 1 of 2P018849-SK-326-0004.pdf (0 kb)Not publishedView
Description: Treatment Area Sections 2 of 2P018849-SK-326-0005.pdf (0 kb)Not publishedView
Description: Isometric ViewsP018849-SK-326-0006.pdf (0 kb)Not publishedView
Description: Planning Elevations Sheet 1 of 2P018849-SK-326-0007.pdf (0 kb)Not publishedView
Description: Planning Elevations Sheet 2 of 2P018849-SK-326-0008.pdf (0 kb)Not publishedView
Description: Demolition PlanP018849-SK-326-0009-A Demolition Plan.pdf (0 kb)Not publishedView
Description: Proposed Site LayoutP018849-SK-326-0002.pdf (0 kb)Not publishedView
Description: General Arrangement Isometric ViewP018849-DR-381-0001_iss1_revB.pdf (0 kb)Not publishedView
Description: Foundation PlanPO18849-DR-293-0001 A.pdf (0 kb)Not publishedView
Description: Centrifuge Platform LevelPO18849-DR-293-0002 A.pdf (0 kb)Not publishedView
Description: Centrifuge Lifting Beam LevelPO18849-DR-293-0003 A.pdf (0 kb)Not publishedView
Description: Building Section & DetailsPO18849-DR-293-0007 A.pdf (0 kb)Not publishedView
Description: Foundation Details & SectionsPO18849-DR-293-0010 A.pdf (0 kb)Not publishedView
Description: Platform Sections & DetailsPO18849-DR-293-0020 A.pdf (0 kb)Not publishedView
Description: Foundation Plan - Outside AreaPO18849-DR-293-0050 A.pdf (0 kb)Not publishedView
Description: 3D ViewPO18849-DR-293-0100 A.pdf (0 kb)Not publishedView
Description: 3D ViewPO18849-DR-293-0101 A.pdf (0 kb)Not publishedView
Description: Tyttenhanger Main - SectionPO18849-DR-293-0902 A.pdf (0 kb)Not publishedView
Description: Tyttenhanger Main - PlanPO18849-DR-293-0903 A.pdf (0 kb)Not publishedView
Description: General Arrangement Actiflo Building SectionsP018849-DR-381-0009_D.PDF (0 kb)Not publishedView
Description: Planning Site LayoutP018849-DR-325-0052_iss1_revA.PDF (0 kb)Not publishedView
Description: Site Location Plan20190227_151669_PLN_SP_4.1 sitloc.pdf (0 kb)Not publishedView
Description: General Arrangement Actiflo Building SectionsP018849-DR-381-0010_A.PDF (0 kb)Not publishedView
Description: SectionPO18849-DR-293-0051 A.pdf (0 kb)Not publishedView
Description: Planning StatementNorth Mymms Planning Statement final Oct 2018.pdf (0 kb)Not publishedView
Description: Conditional - North Mymms Parish CouncilComments.pdf (0 kb)Not publishedView
Description: Comment - Environment AgencyRE_ 6_2018_1498_FULL Warrengate Road Water Treatment Works.pdf (0 kb)Not publishedView
Description: Comment - Cadent GasConsultee Response - Ref_ Formal Planning Application – Your Ref_ 6_2018_1498_FULL Our Ref_ NL_TE_Z5_3NWP_014339.pdf (0 kb)Not publishedView
Description: Conditional - WHBC Public Health & ProtectionWarrengate Road Water Treatment Works.pdf (0 kb)Not publishedView
Description: Comment - Cadent GasEmail-ref 6 2018 1498 FULL Becton Sewage Treatment Works.msg (0 kb)Not publishedView
Description: Comment - Cadent Gas/National GridOHL Objection 26-06-2019 11-53-38.pdf (0 kb)Not publishedView
Description: Officer ReportDelegated Report_620181498FULL.pdf (0 kb)Not publishedView
Description: General Arrangement Overall Plan/SectionP018849-DR-381-0002_D.PDF (0 kb)Not publishedView
Description: General Arrangement Artiflo Area PlanP018849-DR-381-0003_D.PDF (0 kb)Not publishedView
Description: General Arrangement Artiflo Area Section PlanP018849-DR-381-0004_D.PDF (0 kb)Not publishedView
Description: General Arrangement Artiflo Area SectionsP018849-DR-381-0005_D.PDF (0 kb)Not publishedView
Description: General Arrangement Artiflo Area SectionsP018849-DR-381-0006_D.PDF (0 kb)Not publishedView
Description: General Arrangement Artiflo Area SectionsP018849-DR-381-0007_D.PDF (0 kb)Not publishedView
Description: General Arrangement Actiflo Dosing Building PlanP018849-DR-381-0008_D.PDF (0 kb)Not publishedView
Description: Comment - Cadent GasNATIONAL_GRID_NL_TE_Z5_3NWP_014339_1_45292.pdf (0 kb)Not publishedView
Description: North Mymms Metaldehyde RemovalP018849-CA-520-0001_iss3_revC Mass Balance.pdf (0 kb)Not publishedView
Description: Decision NoticeDecision Notice_620181498FULL.pdf (0 kb)Not publishedView
Description: Sound Assessment draft report2297w-SEC-00001-01 - North Mymms_Draft Noise Report.pdf (0 kb)Not publishedView
Description: Roof PlanPO18849-DR-293-0004 A.pdf (0 kb)Not publishedView
Description: Site NoticeSite Notice_620181498FULL.pdf (0 kb)Not publishedView
Description: General Arrangement Overall Plan/SectionP018849-DR-381-0002_iss1_revB.pdf (0 kb)Not publishedView
Description: General Arrangement Artiflo Area PlanP018849-DR-381-0003_iss1_revB.pdf (0 kb)Not publishedView
Description: Actiflo Area Section PlanP018849-DR-381-0004_iss1_revB.pdf (0 kb)Not publishedView
Description: Actiflo Area SectionsP018849-DR-381-0005_iss1_revB.pdf (0 kb)Not publishedView
Description: Actiflo Area SectionsP018849-DR-381-0006_iss1_revB.pdf (0 kb)Not publishedView
Description: Acrtiflo Area SectionsP018849-DR-381-0007_iss1_revB.pdf (0 kb)Not publishedView
Description: Actiflo Dosing Building PlanP018849-DR-381-0008_iss1_revB.pdf (0 kb)Not publishedView

Documents open on the council website. Browse council documents if a link has changed.

Decision & conditions

Decided - Granted
Description: Decision Notice
Planning conditions

Conditions aren’t listed here. Read the council decision notice for the full decision and conditions.

Related records

Related records could not be loaded.

Understand this planning record

All planning guides
  • Understanding planning · 13 min read

    Planning application documents: what to read first

    Understand planning application documents, officer reports and decision notices. Use a reading checklist, document table and worked example to inspect a case.

  • Understanding planning · 13 min read

    Planning application statuses explained

    Understand pending consideration, approved, refused and withdrawn planning applications. Compare status labels and find the documents explaining each outcome.

  • Understanding planning · 13 min read

    Planning permission drawings: how to read plans

    Read planning drawings, floor plans, elevations and sections. Use labelled diagrams, a drawing comparison table and revision checks to understand a proposal.