Unit 19 Martinfield Business Centre Martinfield Welwyn Garden City AL7 1HG

1. 8 Oct 2021

   Received by Welwyn Hatfield

2. 13 Oct 2021

   Validated

   Checked as complete and ready for consideration.

3. 26 May 2023

   Decision issued: Refused

4. 25 Sep 2026

   Added to PlanIndex

Welwyn Hatfield refused this application for the reasons on the decision notice; only the applicant can appeal, and refused schemes often return in revised form. More in our guide to what happens after a planning decision.

A full application seeks permission for a complete, detailed proposal in one go, with siting, design, access and landscaping all fixed at this stage. More in our guide to planning application types.

• Inspira House Martinfield Welwyn Garden City AL7 1GW

  6/2026/0204/FULL Submitted 5 Feb 2026 100 yards away

  Installation of roof insulation and new edge detail, raising height by 500mm. Addition of externally mounted rainwater hoppers and downpipes

  Granted Full applications

• Inspira House Martinfield Welwyn Garden City AL7 1GW

  6/2020/3130/FULL Submitted 24 Nov 2020 100 yards away

  Addition of 3 residential units to existing building.

  Withdrawn Full applications

• 45-63 Brownfields Mill Brownfields Welwyn Garden City AL7 1AN

  6/2026/0766/MAJ Submitted 30 Apr 2026 100 yards away

  Erection of an additional storey to the roof of the building to accommodate additional office space.

  Granted Full applications
  Major scheme

• Norton Building Bridge Road East Welwyn Garden City AL7 1JR

  6/2025/2413/VAR Submitted 18 Nov 2025 150 yards away

  90% historically approved · decision due ~13 Jan

  Variation of conditions Condition 9 (Land contamination), Condition 10 (Piling Method Statement and foundation works risk assessment), Condition 12 (Construction Management Plan), Condition 13 (Detailed drawings), Condition 14 (Construction drawings for flooding risk management), Condition 15 (Construction phase surface water management plan), Condition 16 (Water supplies and fire hydrants), Condition 17 (Cycle storage), Condition 18 (Energy saving technologies), Condition 19 (Landscaping details), Condition 20 (Samples of materials), Condition 22 (Survey and verification report for surface water drainage system), Condition 23 (Maintenance and management of the sustainable drainage scheme) Condition 24 (Lighting strategy for bats), Condition 25 (Noise mitigation), Condition 26 (Surface water interception and disposal), Condition 28 (EV charging spaces), Condition 29 (Water efficiency and water reduction measures), Condition 30 (BREEAM certification), Condition 31 (Recycling and waste storage), Condition 32 (Overarching Travel Plan and Plot Travel Plans), Condition 41 (Approved landscaping details) and Condition 42 (Approved Drawings) on planning permission 6/2024/0908/MAJ

  Awaiting decision Amendments 5 docs

• 6 City Park Swiftfields Welwyn Garden City AL7 1LY

  6/2019/2620/COND Submitted 18 Oct 2019 250 yards away

  Submission of details pursuant to condition 1 (plant and equipment noise) and 2 (cycle parking) on planning permission 6/2019/2000/FULL

  Split decision Conditions

• 20 Tewin Road Welwyn Garden City AL7 1LG

  6/2019/3066/FULL Submitted 3 Dec 2019 250 yards away

  Retention of change of use from offices (B1a) to a church and community centre (D1)

  Granted Full applications 1 doc

• 6/2026/1052/FULL Granted

  Unit 3 Woodside Lane Hatfield AL9 6DE

  Retention of an extension to the existing building and the erection of a rear extension following demolition of existing buildings (part retrospective)

  Received 17 Jun, published by the council 24 Jul 2026 Full applications
• 6/2026/1264/FULL Granted

  53 Brookmans Avenue Brookmans Park AL9 7QG

  Erection of dwelling with boundary wall and gates following demolition of existing property

  Received 17 Jul, published by the council 15 Aug 2026 Full applications
• 6/2026/1337/FULL Granted

  Royal Veterinary College Hawkshead Lane North Mymms AL9 7TA

  Relocation of the Transfusion Medicine Vet Pod and associated parking, landscaping and associated works

  Received 30 Jul, published by the council 9 Aug 2026 Full applications
• 6/2026/1689/MAJ Awaiting decision

  Howlands House Howlands Welwyn Garden City AL7 4QJ

  Erection of a single 3 and 4-storey building comprising 44 temporary accommodation homes, staff office and laundry facilities, children's play space, cycle and vehicular parking, associated servicing, plant enclosure, substation, landscaping and external works.

  Received 25 Sep, published by the council 1 Oct 2026 Full applications
• 6/2026/0952/FULL Granted

  18 Fallowfield Welwyn Garden City AL7 1EE

  Retrospective application for change of use from amenity land to residential land to form part hardstanding and part garden land at the front of the property and installation of a drop kerb

  Received 1 Jun, published by the council 24 Jul 2026 Full applications