Hertfordshire Data Centre Mundells Welwyn Garden City AL7 1GE

1. 5 Aug 2024

   Received by Welwyn Hatfield

2. 7 Nov 2024

   Decision issued: Granted

3. 24 Jul 2026

   Added to PlanIndex

Welwyn Hatfield granted permission on 7 November 2024, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. 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.

• 9 Sterling Court Mundells Welwyn Garden City AL7 1FZ

  6/2022/2690/LAWP Submitted 25 Nov 2022 300 yards away

  Certificate of lawfulness for proposed loft conversion with two side facing box dormers with four rooflights, installation of front and rear gable windows.

  Refused Lawful development Loft or dormer Windows or glazing

• 11 Sterling Court Mundells Welwyn Garden City AL7 1FZ

  6/2023/0339/HOUSE Submitted 13 Feb 2023 300 yards away

  Loft conversion complete with side dormers, floor plan redesign and all associated works

  Withdrawn Householder Loft or dormer
  Domestic

• 25 Windhill Welwyn Garden City AL7 1RH

  6/2021/1517/EMH Submitted 12 May 2021 350 yards away

  Erection of single storey side/front extension, single storey rear extension with insertion of roof light and replacing some glazing with facing brickwork to front existing window.

  Granted Householder Extension Loft or dormer +1
  Small domestic

• 25 Windhill Welwyn Garden City AL7 1RH

  6/2021/1507/HOUSE Submitted 12 May 2021 350 yards away

  Erection of single storey side/front extension, single storey rear extension with insertion of roof light and replacement of some glazing with facing brickwork to front existing window.

  Granted Householder Extension Loft or dormer +1
  Small domestic

• 21 Windhill Welwyn Garden City AL7 1RH

  6/2026/0227/EM Submitted 9 Feb 2026 350 yards away

  Installation of solar panels

  Granted

• 2 Upper Shot Welwyn Garden City AL7 1RP

  6/2021/1845/EMT Submitted 15 Jun 2021 350 yards away

  1 x Sliver Birch stem to fell to ground level

  Withdrawn Trees

• 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