Unit off Gypsy Moth Avenue, Hatfield

1. 16 Jun 2026

   Received by Welwyn Hatfield

2. 17 Jun 2026

   Validated

   Checked as complete and ready for consideration.

3. 24 Jul 2026

   Added to PlanIndex

4. 3 Aug 2026

   Decision issued: Refused

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.

This application deals with conditions on an existing permission, supplying the details a condition requires or asking to vary or remove one, without reopening the permission itself. More in our guide to planning application types.

• University Bus Garage Gypsy Moth Avenue Hatfield AL10 9BS

  6/2026/0122/FULL Submitted 26 Jan 2026 300 yards away

  82% historically approved · decision due ~24 Mar

  The installation of electric vehicle infrastructure to convert existing diesel bus fleet to fully electric vehicles (EV)

  Awaiting decision Full applications

• Toolbank Gypsy Moth Avenue Hatfield Business Park Hatfield AL10 9BS

  6/2021/2208/FULL Submitted 21 Jul 2021 350 yards away

  Installation of sliding gates to replace swing gates, installation of external window and doors to accommodate increase in internal mezzanine floor and creation of additional vehicle parking.

  Granted Full applications Windows or glazing

• 16 Chipmunk Chase Hatfield AL10 9GH

  6/2026/0534/HOUSE Submitted 24 Mar 2026 350 yards away

  Retention of single storey rear extension and garage conversion to study/office

  Refused Householder Extension
  Small domestic

• H R Owen Mosquito Way Hatfield AL10 9WN

  6/2021/0505/COND Submitted 16 Feb 2021 350 yards away

  Submission of details pursuant to conditions 1 (construction management plan), 2 (surface water drainage) and 7 (details of foundation design of approval) on planning permission 6/2019/1411/MAJ.

  Granted Conditions

• Plot 5100 Hatfield Business Park Mosquito Way Hatfield AL10 9WN

  6/2021/1449/VAR Submitted 10 May 2021 350 yards away

  Variation of condition 12 (soft landscaping) on planning permission 6/2019/1411/MAJ

  Withdrawn Amendments

• The Beacon Mosquito Way Hatfield AL10 9WN

  6/2021/1430/ADV Submitted 6 May 2021 350 yards away

  Installation of internally illuminated wall-mounted fascia signs

  Granted Advertising

• 6/2026/1206/COND Granted

  Land south of Welham Manor and west of Station Road, including 26 Station Road Welham Green AL9 7EL

  Submission of details pursuant to condition 10 (Landscaping) on planning application 6/2024/2418/MAJ

  Received 10 Jul, published by the council 24 Jul 2026 Conditions
• 6/2026/1419/COND Granted

  Howe Dell School The Runway Hatfield AL10 9AH

  Submission of details pursuant to Condition 1 (Biodiversity Gain Plan), Condition 2 (Landscape and Ecological Management Plan (LEMP)), Condition 3 (Construction Traffic Management Plan (CTMP)) and Condition 4 (Tree Survey, Arboricultural Method Statement and Tree Protection Strategy) on planning permission 6/2026/0478/FULL

  Received 11 Aug, published by the council 22 Aug 2026 Conditions
• 6/2026/1537/COND Granted

  Land south of Welham Manor and west of Station Road, including 26 Station Road Welham Green AL9 7EL

  Submission of details pursuant to Condition 15 (Fire Hydrants) on planning permission 6/2024/2418/MAJ

  Received 3 Sep, published by the council 22 Sep 2026 Conditions
• 6/2026/1402/COND Granted

  Wytmead Essendon Hill Essendon Hatfield AL9 6AW

  Submission of details pursuant to Condition 1 (samples of the roof tiles) and condition 3 (rooflights) on listed building consent 6/2026/0690/LB

  Received 7 Aug, published by the council 31 Aug 2026 Conditions
• 6/2026/1693/COND Awaiting decision

  114 Parkway Welwyn Garden City AL8 6HN

  Submission of details pursuant to Condition 1 (details of block paving) and 2 (drawings of doors, rooflight and windows) on planning permission 6/2026/0403/HOUSE

  Received 25 Sep, published by the council 7 Oct 2026 Conditions