6 South Mundells Welwyn Garden City AL7 1EP

1. 20 Apr 2026

   Received by Welwyn Hatfield

2. 27 Apr 2026

   Validated

   Checked as complete and ready for consideration.

3. 22 May 2026

   Decision issued: Prior Approval Required and Granted

4. 9 Aug 2026

   Added to PlanIndex

Welwyn Hatfield granted permission on 22 May 2026, 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.

Prior approval applies where permitted development rights already grant the principle of the work, leaving the council only the specific matters the rules name, commonly within 56 days. More in our guide to planning application types.

• Arundel House Garnell Business Park Brownfields Welwyn Garden City AL7 1AY

  6/2024/2296/FULL Submitted 29 Nov 2024 150 yards away

  80% historically approved · decision due ~7 Feb

  Change of use from Commercial Property (Class E) to Place of Worship (Class F1)

  Awaiting decision Full applications

• Arundel House Garnell Business Park Brownfields Welwyn Garden City AL7 1AY

  6/2024/1504/FULL Submitted 7 Aug 2024 150 yards away

  Change of use of commercial property from Class E (warehouse and office) to Place of Worship Class F1

  Refused Full applications

• 17-21 Brownfields Welwyn Garden City AL7 1AN

  6/2023/0294/TPO Submitted 7 Feb 2023 200 yards away

  2 x Oak trees T1 & T2 - to remove major deadwood over access road and reduce low limbs from over buildings by 1m (1 currently touching chimney stack), crown lift to 5m. Both trees are overhanging privately owned industrial property and access road in Brownfields.

  Granted Trees

• 29 Brownfields Welwyn Garden City AL7 1AN

  6/2021/0883/COND Submitted 18 Mar 2021 200 yards away

  Submission of details pursuant to condition 2 (location of disabled car user parking bay) & 3 (location of electric vehicle charging point), on planning permission 6/2018/1616/FULL

  Granted Conditions

• Black Fan Road, at the entrance to Brownfields, Welwyn Garden City, Hatfield, Hertfordshire, AL7 1BA

  6/2023/0703/PN15 Submitted 28 Mar 2023 200 yards away

  Erection of 15m high slim-line monopole, supporting 6 no. antennas, 3 no. equipment cabinets and ancillary development thereto.

  Refused Prior approval

• 4A Bridgefields Welwyn Garden City AL7 1RX

  6/2021/1927/TPO Submitted 24 Jun 2021 300 yards away

  T1 - London Plane - Crown lift to 5 meters, reduce south west of crown by 3 meters to allow clearance from building. No cuts larger than 80mm diameter. T2 + T3 Lime - Crown lift to 5 meters, removal of basal growth and prune over extended branches by 2 meters to bring back into shape. No cuts larger than 80mm T4 + T5 + T6 Lime - Crown lift to 5 meters and removal of basal growth. No cuts larger than 80mm

  Granted Trees

• 6/2026/1265/PN8 Granted

  1 Newstead Hatfield AL10 9DH

  Prior approval for a single storey rear extension measuring 6.00m in depth, 2.60m to the eaves and the maximum height of 3.00m

  Received 20 Jul, published by the council 1 Aug 2026 Prior approval
• 6/2026/1086/PN24 Refused

  The Hub Tamblin Way Hatfield AL10 9EZ

  Prior approval for installation of a roof-mounted solar PV system, comprising of 212 Solarwatt panels to a total system size of 95.4 kWp

  Received 23 Jun, published by the council 2 Aug 2026 Prior approval
• 6/2026/1686/PN8 Awaiting decision

  65 Maple Grove Welwyn Garden City AL7 1NN

  Prior approval for the erection of a single storey rear extension measuring 6m in depth, 3m in height and 2.75m to the eaves

  Received 23 Sep, published by the council 1 Oct 2026 Prior approval
• 6/2026/1399/PN8 Granted

  1 High Dells Hatfield AL10 9JD

  Prior approval for a single storey rear extension measuring 4.50m in depth, 2.58m to the eaves and the maximum height of 2.75m

  Received 7 Aug, published by the council 22 Aug 2026 Prior approval
• 6/2026/1335/PN8 Refused

  31 Kentish Lane Brookmans Park AL9 6NG

  Prior approval for 2x single storey rear extensions and 1x single storey side/rear extension measuring 8m in depth, 2.85m to the eaves and the maximum height of 4m

  Received 30 Jul, published by the council 22 Aug 2026 Prior approval