North Mymms Park Tollgate Road North Mymms AL9 7TR

1. 21 Apr 2026

   Received by Welwyn Hatfield

2. 11 May 2026

   Validated

   Checked as complete and ready for consideration.

3. 24 Jul 2026

   Added to PlanIndex

4. Decision

   Awaiting decision

   Decision expected by 6 July 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   Welwyn Hatfield took a median of 58 days over the applications it decided in the last year.

This application is with Welwyn Hatfield for determination, against a statutory target of eight weeks. Over the last year Welwyn Hatfield's median decision took 58 days. More in our guide to how long planning decisions take.

An amendment application makes limited changes to a permission that already exists; anything beyond modest adjustment needs a fresh application. More in our guide to planning application types.

• North Mymms Park Tollgate Road North Mymms Hatfield AL9 7TR

  6/2026/1248/LAWE Submitted 15 Jul 2026 100 yards away

  80% historically approved · decision due ~9 Sep

  Certificate of lawfulness of existing use as a wedding venue, conference, ceremonies, corporate events and filming

  Awaiting decision Lawful development

• Mansion House North Mymms Park Tollgate Road North Mymms Hatfield AL9 7TR

  6/2026/1251/MAJ Submitted 16 Jul 2026 100 yards away

  Change of use to wedding venue, conference, ceremonies, corporate events and filming (Retrospective)

  Refused Full applications
  Major scheme

• 6/2026/1491/VAR Awaiting decision

  Land at Great North Road Stanborough Welwyn Garden City AL8 7TQ

  Variation of condition 28 (approved plans) on planning permission 6/2025/0764/FULL

  Received 25 Aug, published by the council 7 Sep 2026 Amendments
• 6/2026/1424/VAR Awaiting decision

  18 Birchwood Close Hatfield AL10 0PP

  Variation of Condition 1 (Arboricultural Method Statement and Tree Protection Plan) and Condition 2 (External Materials) on planning permission 6/2025/0927/HOUSE

  Received 12 Aug, published by the council 31 Aug 2026 Amendments
• 6/2026/1360/VAR Awaiting decision

  93 Salisbury Road Welwyn Garden City AL7 3RY

  Variation of condition 2 (approved plans) on planning permission 6/2025/2622/HOUSE

  Received 3 Aug, published by the council 15 Aug 2026 Amendments
• 6/2026/0659/VAR Granted

  38 The Ridgeway Cuffley Potters Bar EN6 4AX

  Variation of condition 3 (Arboricultural Method Statement and the Tree Protection Plan) and condition 18 (approved plans) on planning permission 6/2023/2115/FULL

  Received 14 Apr, published by the council 24 Jul 2026 Amendments
• 6/2026/0752/VAR Refused

  Land adjacent to Woodvale 1 Carbone Hill Northaw Potters Bar EN6 4PJ

  Variation of condition 3 (levels), 6 (hard and soft landscaping), 7 (materials), 9 (energy statement) and 16 (approved plans) on planning permission 6/2024/1554/FULL

  Received 28 Apr, published by the council 24 Jul 2026 Amendments