Hawkshead Lane North Mymms Brookmans Park Hatfield AL9 7TA

1. 23 Feb 2023

   Received by Welwyn Hatfield

2. 24 Feb 2023

   Validated

   Checked as complete and ready for consideration.

3. 20 Apr 2023

   Decision issued: Prior Approval Required and Refused

4. 22 Aug 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.

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.

• Royal Veterinary College Hawkshead Lane North Mymms AL9 7TA

  6/2026/1337/FULL Submitted 30 Jul 2026 50 yards away

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

  Granted Full applications

• Small Animal Hospital at the Hawkshead Campus of the Royal Veterinary College AL9 7TA

  6/2026/0765/EIA Submitted 30 Apr 2026 150 yards away

  Request for a screening opinion for proposal to implement the proposals for a new Small Animal Hospital as per the Approved Hawkshead Campus Masterplan (2018): Request for an Environmental Impact Assessment (EIA) Screening Opinion under Regulations 5 and 6 of the Town and Country Planning (E nvironmental Impact Assessment) Regulations 2017 (as amended)

  Decided Outline

• Royal Veterinary College Hawkshead Lane North Mymms AL9 7TA

  6/2024/2399/COND Submitted 18 Dec 2024 200 yards away

  Submission of details pursuant to condition 1 (Travel Plan) on planning permission 6/2018/2943/MAJ

  Refused Conditions

• Royal Veterinary College Hawkshead Lane North Mymms AL9 7TA

  6/2026/1030/FULL Submitted 11 Jun 2026 250 yards away

  Proposed new manège with associated lighting, fencing, landscaping, and associated works

  Granted Full applications

• 24 Hawkshead Lane North Mymms AL9 7TB

  6/2026/0700/HOUSE Submitted 20 Apr 2026 400 yards away

  Alteration and extension to roof with the insertion of a new rooflight. Garage conversion involving the replacement of garage door with window

  Refused Householder Extension Loft or dormer +1
  Small domestic

• 22 Hawkshead Lane Hatfield AL9 7TB

  6/2021/2348/LAWP Submitted 9 Aug 2021 0.3 miles away

  Certificate of lawfulness for the erection of a 3m two storey rear extension

  Granted Lawful development Extension

• 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