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.
Council planning record
20 Black Fan Road Welwyn Garden City AL7 1QA
Last published check: 3 Nov 2026, 07:53. Check the council record for more recent changes.
Council milestones and published deadlines. A deadline passing does not confirm a decision.
A published target or deadline. It does not confirm an outcome.
Council sourceA published target or deadline. It does not confirm an outcome.
Council sourceA published target or deadline. It does not confirm an outcome.
Council sourceErection of 4 x 2 level data halls, alterations to car park, external emergency generator installation, rooftop air handling plant, additional level to existing sub-station and high level containment trestle
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| Document | Published | Action |
|---|---|---|
| Description: Application Form - Without Personal DataApplicationFormNoPersonalData.pdf (0 kb) | Not published | View |
| Description: Existing Site PlanA0.251 - A.PDF (0 kb) | Not published | View |
| Description: Proposed Site PlanA0.260 - B.PDF (0 kb) | Not published | View |
| Description: Proposed Halls 23 & 24 ElevationsA0 273.pdf (0 kb) | Not published | View |
| Description: Existing ElevationsA0 254.pdf (0 kb) | Not published | View |
| Description: Proposed Halls 23 & 24 Ground Floor LayoutA0 270.pdf (0 kb) | Not published | View |
| Description: Proposed Halls 23 & 24 First Floor LayoutA0 271.pdf (0 kb) | Not published | View |
| Description: Existing Ground Floor PlanA0.252 - A.PDF (0 kb) | Not published | View |
| Description: Existing First Floor PlanA0.253 - A.PDF (0 kb) | Not published | View |
| Description: Proposed Halls 25-30 First Floor LayoutA0.262 - A.PDF (0 kb) | Not published | View |
| Description: Proposed Halls 25-30 Ground Floor PlanA0.261 - B.PDF (0 kb) | Not published | View |
| Description: Landscape ProposalsRev A-Landscape Proposals-2017-05-10.pdf (0 kb) | Not published | View |
| Description: Site Location PlanA0.250 - A.PDF (0 kb) | Not published | View |
| Description: Proposed Storm Drainage & Attentuation Works (Appendix H)Appendix H_Black Fan Rd_FRA_HM Dwg 130312CS-13254-PH-1701_01.pdf (0 kb) | Not published | View |
| Description: Proposed Storm Drainage & Attentuation Works (Appendix I)Appendix I_Black Fan Rd_HM Dwg 170511 1703-01 - Planning Drawing.pdf (0 kb) | Not published | View |
| Description: Demarcation of Attenuated AreasAppendix H_Black Fan Rd_ FRA_HM Dwg 130312CS-13254-PH-1700_01.pdf (0 kb) | Not published | View |
| Description: Proposed SubstationA0.275 - #.pdf (0 kb) | Not published | View |
| Description: Substation DetailsSK.001.pdf (0 kb) | Not published | View |
| Description: Proposed Halls 25-30 SectionsA0 265.pdf (0 kb) | Not published | View |
| Description: Proposed Halls 23 & 24 SectionsA0 274.pdf (0 kb) | Not published | View |
| Description: Existing SectionsA0 255.pdf (0 kb) | Not published | View |
| Description: Design & Access StatementA DESIGN AND ACCESS STATEMENT REV# - 170512.pdf (0 kb) | Not published | View |
| Description: Landscape StrategyLANDSCAPE STRATEGY AND LVIA 170512.pdf (0 kb) | Not published | View |
| Description: Planning StatementPlanning statement FINAL.pdf (0 kb) | Not published | View |
| Description: Transport StatementTRANSPORT STATEMENT 170512.pdf (0 kb) | Not published | View |
| Description: Comments - Highways HCC10.pdf (0 kb) | Not published | View |
| Description: Comments - WHBC Environmental HealthComments.htm (0 kb) | Not published | View |
| Description: Comments - Environment Agency127010.pdf (0 kb) | Not published | View |
| Description: Comment - Herts Fire & Rescue ServicePages from plan_eg_12-06-2017_10-51-34-2.pdf (0 kb) | Not published | View |
| Description: Comment - Lead Local Flood Authority - Objects620171028MAJ - 20 Black Fan Road JP.pdf (0 kb) | Not published | View |
| Description: Comment - Ecology20 Black Fan Road Welwyn Garden City 6.2017.1028.MAJ.pdf (0 kb) | Not published | View |
| Description: Comment - Historic Environment Officer1028-1.pdf (0 kb) | Not published | View |
| Description: Comment - Thames WaterEmail-3rd Party Planning Application - 6 2017 1028 MAJ.pdf (0 kb) | Not published | View |
| Description: Comment - Herts Fire & Rescue Service - AttachmentKAM00653.pdf (0 kb) | Not published | View |
| Description: Comment - Herts Fire & Rescue ServiceComments.pdf (0 kb) | Not published | View |
| Description: Comment - Herts HighwayResponse to Planning application from Hertfordshire County Council.pdf (0 kb) | Not published | View |
| Description: Comment - Historic Enviroment Officer1028-2 gg.pdf (0 kb) | Not published | View |
| Description: Comment - Lead Local Flood Authority - No objections620171028MAJ - 20 Black Fan Road JP(1).pdf (0 kb) | Not published | View |
| Description: Comment - Hertfordshire Ecology20 Black Fan Rd WGC 6-2017-1028.pdf (0 kb) | Not published | View |
| Description: Comment - Waste & Minerals20 Black Fan Road Welwyn Garden City AL7 1QA (6 2017 1028 MAJ).pdf (0 kb) | Not published | View |
| Description: Comment - Cadent GasNATIONAL_GRID_EA_TE_Z5_3NWP_007924_1_5232.pdf (0 kb) | Not published | View |
| Description: Comment - Cadent GasEmail-RE EXT Cadent and National Grid Plant Enquiry Response - Your Ref 6 2017 1028 MAJ (LMW) Ou.pdf (0 kb) | Not published | View |
| Description: Decision Notice PDFDecision Notice_620171028MAJ.pdf (0 kb) | Not published | View |
| Description: Appendix 1 - 13254-PH-1710_01Appendix 1 - 13254-PH-1710_01.pdf (0 kb) | Not published | View |
| Description: Officer ReportDelegated Report_620171028MAJ(3).pdf (0 kb) | Not published | View |
| Description: Acoustic ReportACOUSTIC REPORT v02 170512.pdf (0 kb) | Not published | View |
| Description: Air Quality StatementAIR QUALITY STATEMENT 170512.pdf (0 kb) | Not published | View |
| Description: Proposed Halls 25-30 ElevationsA0.264 - C.PDF (0 kb) | Not published | View |
| Description: Ecological Assessment - RedactedECOLOGICAL ASSESSMENT_Redacted.pdf (0 kb) | Not published | View |
| Description: Energy StatementENERGY STRATEGY Rev01.pdf (0 kb) | Not published | View |
| Description: Flood Risk Assessment - Redacted (Superseded)FLOOD RISK ASSESSMENT FRA_v00_Redacted.pdf (0 kb) | Not published | View |
| Description: Light Pollution StatementLIGHT POLLUTION STATEMENT.pdf (0 kb) | Not published | View |
| Description: Environmental Screening OpinionENVIRONMENTAL SCREENING OPINION 170512.pdf (0 kb) | Not published | View |
| Description: Appendix E - FRA-SI Report - RedactedAppendix E_Black Fan Rd_FRA_SI Report_Redacted.pdf (0 kb) | Not published | View |
| Description: Appendix F - FRA Infiltration Testing Report - RedactedAppendix F_Black Fan Rd_FRA_Infiltration Testing Report_Redacted.pdf (0 kb) | Not published | View |
| Description: Appendix G - FRA Stormwater Attenuation ProposalsAppendix G_Black Fan Rd_FRA_Stormwater Attenuation Proposals.pdf (0 kb) | Not published | View |
| Description: Appendix C. 05-708-Landscape Supporting Graphics - RedactedAppendix C. 05-708-Landscape Supporting Graphics-2017-04-26_Redacted.pdf (0 kb) | Not published | View |
| Description: Rev A-Landscape Supporting Graphics - RedactedRev A-Landscape Supporting Graphics-2017-05-10_Redacted.pdf (0 kb) | Not published | View |
| Description: Appendix B Waste Management Confirmation - RedactedAPPENDIX B WASTE MANAGEMENT CONFIRMATION 170512_Redacted.pdf (0 kb) | Not published | View |
| Description: Appendix B Waste Management Plan WGCAPPENDIX B WASTE MANAGEMENT PLAN WGC 170512.PDF (0 kb) | Not published | View |
| Description: Contaminated Land Assessment - RedactedCONTAMINATED LAND ASSESSMENT 170512 REDACTED .pdf (0 kb) | Not published | View |
| Description: SuDS Design & MicroDrainage Output (Superseded Report)170719_21603_01_SuDS Design & MicroDrainage Outputs_00.pdf (0 kb) | Not published | View |
| Description: Appendix 1 - 13254-PH-1701_04Appendix 1 - 13254-PH-1701_04.pdf (0 kb) | Not published | View |
| Description: Appendix 1 13254-PH-1711_01Appendix 1 - 13254-PH-1711_01.pdf (0 kb) | Not published | View |
| Description: SuDS Design & MicroDrainage Outputs 30/8/17170830_21603_01_MicroDrainage_Outputs_01_with_Appendices (4).pdf (0 kb) | Not published | View |
| Description: Proposed Halls 23 & 24 Roof PlansA0 272.pdf (0 kb) | Not published | View |
| Description: Proposed Halls 25-30 Roof LayoutA0.263 - B.PDF (0 kb) | Not published | View |
| Description: Site NoticeSite Notice_620171028MAJ.pdf (0 kb) | Not published | View |
| Description: Site NoticeSite Notice_620171028MAJ(2).pdf (0 kb) | Not published | View |
| Description: Site NoticeSite Notice_620171028MAJ(3).pdf (0 kb) | Not published | View |
| Description: Existing Topographical SurveyA0.256.pdf (0 kb) | Not published | View |
| Description: Proposed Site PlanA0.260.pdf (0 kb) | Not published | View |
| Description: Proposed Halls 25-30 Ground Floor LayoutA0.261.pdf (0 kb) | Not published | View |
| Description: Proposed Halls 25-30 First Floor LayoutA0.262.pdf (0 kb) | Not published | View |
| Description: Proposed Halls 25-30 Roof LayoutA0.263.pdf (0 kb) | Not published | View |
| Description: Proposed Halls 25-30 ElevationsA0.264.pdf (0 kb) | Not published | View |
| Description: Proposed Halls 25-30 SectionsA0.265.pdf (0 kb) | Not published | View |
| Description: Proposed Halls 23 & 34 Ground Floor LayoutA0.270.pdf (0 kb) | Not published | View |
| Description: Proposed Halls 23 & 34 First Floor LayoutA0.271.pdf (0 kb) | Not published | View |
| Description: Proposed Halls 23 & 34 Roof LayoutA0.272.pdf (0 kb) | Not published | View |
| Description: Proposed Halls 23 & 34 ElevationsA0.273.pdf (0 kb) | Not published | View |
| Description: Proposed Halls 23 & 34 SectionsA0.274.pdf (0 kb) | Not published | View |
| Description: Site Location PlanA0.250 SITE LOCATION PLAN.pdf (0 kb) | Not published | View |
| Description: Existing Site PlanA0.251.pdf (0 kb) | Not published | View |
| Description: Existing Ground Floor LayoutA0.252.pdf (0 kb) | Not published | View |
| Description: Existing First Floor LayoutA0.253.pdf (0 kb) | Not published | View |
| Description: Existing ElevationsA0.254.pdf (0 kb) | Not published | View |
| Description: Existing Building SectionsA0.255.pdf (0 kb) | Not published | View |
| Description: Site Location PlanA0 250.pdf (0 kb) | Not published | View |
| Description: Existing Site PlanA0 251.pdf (0 kb) | Not published | View |
| Description: Existing Ground Floor LayoutA0 252.pdf (0 kb) | Not published | View |
| Description: Existing First Floor LayoutA0 253.pdf (0 kb) | Not published | View |
| Description: Existing ElevationsA0 254.pdf (0 kb) | Not published | View |
| Description: Existing Building SectionsA0 255.pdf (0 kb) | Not published | View |
| Description: Existing Topographical SurveyA0 256.pdf (0 kb) | Not published | View |
| Description: Proposed Site PlanA0 260.pdf (0 kb) | Not published | View |
| Description: Proposed Halls 25-30 Ground Floor LayoutA0 261.pdf (0 kb) | Not published | View |
| Description: Proposed Halls 25-30 First Floor LayoutA0 262.pdf (0 kb) | Not published | View |
| Description: Proposed Halls 25-30 Roof PlansA0 263.pdf (0 kb) | Not published | View |
| Description: Proposed Halls 25-30 ElevationsA0 264.pdf (0 kb) | Not published | View |
| Description: Site Location PlanA0 250.pdf (0 kb) | Not published | View |
| Description: Existing Site PlanA0 251.pdf (0 kb) | Not published | View |
| Description: Existing Ground Floor PlanA0 252.pdf (0 kb) | Not published | View |
| Description: Existing First Floor PlanA0 253.pdf (0 kb) | Not published | View |
| Description: Proposed Halls 25-30 ElevationsA0.264 - A.pdf (0 kb) | Not published | View |
| Description: Proposed Halls 25-30 ElevationsA0.264# ht of submitted substation.pdf (0 kb) | Not published | View |
| Description: Proposed Site PlanA0.260 - A.PDF (0 kb) | Not published | View |
| Description: Proposed Halls 25-30 Roof LayoutA0.263 - A.PDF (0 kb) | Not published | View |
| Description: Proposed Halls 25-30 ElevationsA0.264 - B.PDF (0 kb) | Not published | View |
| Description: Sustainability Checklist20 BLACK FAN ROAD SUSTAINABILITY CHECKLIST..pdf (0 kb) | Not published | View |
| Description: Existing Topographical SurveyA0 256.pdf (0 kb) | Not published | View |
| Description: Green Travel PlanGREEN TRAVEL PLAN 170512.pdf (0 kb) | Not published | View |
| Description: Existing Tree SurveyEXISTING TREE SURVEY.pdf (0 kb) | Not published | View |
| Description: Tree Survey Report170527 - 20 Blackfan Rd Welwyn - FINALTree Survey Report May2017.pdf (0 kb) | Not published | View |
Documents open on the council website. Browse council documents if a link has changed.
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