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
Mercury House 1 Broadwater Road Welwyn Garden City AL7 3BQ
Last published check: 13 Oct 2026, 04:44. 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 sourceChange of use from B1(a) office to C3 residential, construction of roof and side extensions, creation of 43 residential apartments and cycle storage compound
Sign in to view all collected council fields and recorded changes.
Sign in to view collected detailsMercury House 1 Broadwater Road Welwyn Garden City AL7 3BQ
This record has no verified map location.
| Document | Published | Action |
|---|---|---|
| Description: Application Form - Without Personal DataApplicationFormNoPersonalData.pdf (0 kb) | Not published | View |
| Description: Application Form - Redacted NMAApplicationFormNoPersonalData(1).pdf (0 kb) | Not published | View |
| Description: Application Form - Redacted NMAApplicationFormNoPersonalData(2).pdf (0 kb) | Not published | View |
| Description: NMA Application Form - RedactedApplicationFormNoPersonalData(3).pdf (0 kb) | Not published | View |
| Description: Existing Site Plan0890_A_2000_E - Site Layout.pdf (0 kb) | Not published | View |
| Description: Existing Elevations0890_A_0514_B - Existing Elevations.pdf (0 kb) | Not published | View |
| Description: Proposed Elevations NMA0890_A_8200_C - Proposed Elevations.pdf (0 kb) | Not published | View |
| Description: Proposed Elevations Materials Key NMA0890-JSA-XX-XX-DR-A-04102-P3_ProposedElevationsMaterialsKey.pdf (0 kb) | Not published | View |
| Description: ProposedElevationsMaterialsKey0890-JSA-XX-XX-DR-A-04102-P4_ProposedElevationsMaterialsKey.pdf (0 kb) | Not published | View |
| Description: Proposed Elevations0890_A_8200_E - Proposed Elevations.pdf (0 kb) | Not published | View |
| Description: NMA Proposed Elevations0890_A_8200_E - Proposed Elevations(2).pdf (0 kb) | Not published | View |
| Description: NMA Proposed Elevations0890-JSA-XX-XX-DR-A-04102-P4_ProposedElevationsMaterialsKey.pdf (0 kb) | Not published | View |
| Description: Existing Floor Plans0890_A_0504_E - Existing Plans.pdf (0 kb) | Not published | View |
| Description: Location Plan0890_A_0001_B - Site Location Plan.pdf (0 kb) | Not published | View |
| Description: Design & access statement (Superseded)DAS_01_B.pdf (0 kb) | Not published | View |
| Description: Planning statementMercury House Supporting Planning Statement.pdf (0 kb) | Not published | View |
| Description: Comments - Thames Water, Development ControlEmail-3rd Party Planning Application - 6 2016 2624 FULL.pdf (0 kb) | Not published | View |
| Description: Comments - Herts Fire & Rescueplan_es_10-01-2017_10-48-36(1).pdf (0 kb) | Not published | View |
| Description: Objection - Hertfordshire ConstabularyComments (3).htm (0 kb) | Not published | View |
| Description: Objection - Environmental HealthComments (4).htm (0 kb) | Not published | View |
| Description: Comments - Lead Local Flood Authority620162624FULL - Mercury House, 1 Broadwater Road Formal Application Response letter CC.pdf (0 kb) | Not published | View |
| Description: Comments - Health and Safety ExecutiveEmail-FW TRIM 6 2016 2624 FULL Mercury House 1 Broadwater Road Welwyn Garden City AL7 3BQ Change of.pdf (0 kb) | Not published | View |
| Description: Additional Comments - Environmental HealthEmail-RE 6 2016 2624 FULL- 1 Mercury House.pdf (0 kb) | Not published | View |
| Description: Comments - Herts HighwaysEmail-Planning application 6 2016 2624 FULL - Mercury House.pdf (0 kb) | Not published | View |
| Description: Comments - WHBC Affordable HousingComments (6).htm (0 kb) | Not published | View |
| Description: Comments - Development ServicesEmail-6 2016 2624 FULL-Mercury House 1 Broadwater Road AL7 3BQ.pdf (0 kb) | Not published | View |
| Description: Comments - Hertfordshire EcologyMercury House 1 Broadwater Road Welwyn Garden City AL7 3BQ 6 2016 2624 FULL_BAT ASSESSMENT ADVISED w outline mit if more surveys needed.pdf (0 kb) | Not published | View |
| Description: Comments - HCC ObligationsEmail-6 2016 2624 FULL-Mercury House 1 Broadwater Road AL7 3BQ.msg (0 kb) | Not published | View |
| Description: WHBC Conservation officerEmail-FW WGC Mercury House Broadwater Rd 16 2625 FUL .msg (0 kb) | Not published | View |
| Description: Comment - Hertfordshire Ecology (Updated)Mercury House 1 Broadwater Road Welwyn Garden City AL7 3BQ 6.2016.2624.FULL_BAT CAUTION V2.pdf (0 kb) | Not published | View |
| Description: Comment - Herts Fire & RescueHi Rachael.pdf (0 kb) | Not published | View |
| Description: Photo of Tree.jpgPhoto of Tree.jpg (0 kb) | Not published | View |
| Description: S106 Dated 14 September 2017 (Redacted)2016 2624 S106 redacted(1).pdf (0 kb) | Not published | View |
| Description: Decision Notice PDFDecision Notice_620162624FULL.pdf (0 kb) | Not published | View |
| Description: Officer Report1 Mercury House.pdf (0 kb) | Not published | View |
| Description: Committee Report1 Mercury House(1).pdf (0 kb) | Not published | View |
| Description: Proposed Sections0890_A_8300_B - Proposed Sections.pdf (0 kb) | Not published | View |
| Description: Proposed Fourth Floor & Roof Plan0890_A_8103_C - Proposed Fourth Floor & Roof Plan.pdf (0 kb) | Not published | View |
| Description: Proposed Ground & First Floor Plans0890_A_8101_G - Proposed Ground & First Floor Plans.pdf (0 kb) | Not published | View |
| Description: Proposed Second & Third Floor Plans0890_A_8102_G - Proposed Second & Third Floor Plans.pdf (0 kb) | Not published | View |
| Description: Proposed Elevations0890_A_8200_E - Proposed Elevations.pdf (0 kb) | Not published | View |
| Description: Proposed Site Plan0890_A_8100_D - Proposed Site Plan[1].pdf (0 kb) | Not published | View |
| Description: Land contamination assessment - 4Geo Assessment - Pt 04.pdf (0 kb) | Not published | View |
| Description: Land contamination assessment - 5Geo Assessment - Pt 05.pdf (0 kb) | Not published | View |
| Description: Land contamination assessment - 7Geo Assessment - Pt 07.pdf (0 kb) | Not published | View |
| Description: Land contamination assessment - 2Geo Assessment - Pt 02.pdf (0 kb) | Not published | View |
| Description: Land contamination assessment - 6Geo Assessment - Pt 06.pdf (0 kb) | Not published | View |
| Description: Land contamination assessment - 1 (Redacted)Geo Assessment - Pt 01(1).pdf (0 kb) | Not published | View |
| Description: Land contamination assessment - 8 (Redacted)Geo Assessment - Pt 08(1).pdf (0 kb) | Not published | View |
| Description: Land contamination assessment - 3 (Redacted)Geo Assessment - Pt 03(1).pdf (0 kb) | Not published | View |
| Description: Surface Water Drainage Note & Calculations22781Surface Water Drainage Note and Calculations.pdf (0 kb) | Not published | View |
| Description: Bat Survey1193.1 MHW BRA.pdf (0 kb) | Not published | View |
| Description: Design and Access Statement (Revised)Mercury House SPS, Rev. A.pdf (0 kb) | Not published | View |
| Description: Site NoticeSite Notice_620162624FULL.pdf (0 kb) | Not published | View |
| Description: Site NoticeSite Notice_620162624FULL(1).pdf (0 kb) | Not published | View |
| Description: Site NoticeSite Notice_620162624FULL(2).pdf (0 kb) | Not published | View |
| Description: Proposed Layout, Ground & First Floor Plans0890_A_8101_D - Proposed Ground & First Floor Plans.pdf (0 kb) | Not published | View |
| Description: Proposed Layout, Second & Third Floor Plans0890_A_8102_D - Proposed Second & Third Floor Plans.pdf (0 kb) | Not published | View |
| Description: Proposed Layout, Fourth & Roof Plans0890_A_8103_B - Proposed Fourth & Roof Plan.pdf (0 kb) | Not published | View |
| Description: Proposed Sections0890_A_8300_A - Proposed Sections.pdf (0 kb) | Not published | View |
| Description: Proposed Elevations0890_A_8200_B - Proposed Elevations.pdf (0 kb) | Not published | View |
| Description: Proposed Layout, Ground Floor Site Plan0890_A_8100_A - Proposed Site Plan.pdf (0 kb) | Not published | View |
| Description: Proposed Ground & First Floor Plans0890_A_8101_E - Proposed Ground & First Floor Plans.pdf (0 kb) | Not published | View |
| Description: Proposed Elevations0890_A_8200_C - Proposed Elevations.pdf (0 kb) | Not published | View |
| Description: Proposed Second & Third Floor Plans0890_A_8102_E - Proposed Second & Third Floor Plans.pdf (0 kb) | Not published | View |
| Description: Proposed Site Plan0890_A_8100_B - Proposed Site Plan.pdf (0 kb) | Not published | View |
Documents open on the council website. Browse council documents if a link has changed.
Conditions aren’t listed here. Read the council decision notice for the full decision and conditions.
Related records could not be loaded.
Understanding planning · 13 min read
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
Understand pending consideration, approved, refused and withdrawn planning applications. Compare status labels and find the documents explaining each outcome.
Understanding planning · 13 min read
Read planning drawings, floor plans, elevations and sections. Use labelled diagrams, a drawing comparison table and revision checks to understand a proposal.