Land To Rear of Mymms Drive Brookmans Park AL9 7AF

1. 28 Jul 2025

   Received by Welwyn Hatfield

2. 29 Jun 2026

   Decision issued: Granted

3. 24 Jul 2026

   Added to PlanIndex

Welwyn Hatfield granted permission on 29 June 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.

A full application seeks permission for a complete, detailed proposal in one go, with siting, design, access and landscaping all fixed at this stage. More in our guide to planning application types.

• 49 Great North Road Brookmans Park AL9 6LB

  6/2021/1506/HOUSE Submitted 12 May 2021 100 yards away

  Erection of single storey rear extension.

  Granted Householder Extension
  Small domestic

• 5 Mymms Drive Brookmans Park AL9 7AE

  6/2023/0570/LAWP Submitted 14 Mar 2023 150 yards away

  Certificate of lawfulness for erection of outbuilding to facilitate pool and gym

  Granted Lawful development

• 5 Mymms Drive Hatfield AL9 7AE

  6/2023/0147/HOUSE Submitted 20 Jan 2023 150 yards away

  Erection of boundary wall and brick piers, including metal railings and gates

  Granted Householder
  Small domestic

• 5 Mymms Drive Brookmans Park AL9 7AE

  6/2023/0567/HOUSE Submitted 13 Mar 2023 150 yards away

  Erection of a ground floor rear extension, first floor side extension, loft conversion including the raising of the roof ridge to create a crown roof and insertion of front and rear dormers and side rooflights, front garage extension, new front porch and alterations to fenestration.

  Granted Householder Extension Loft or dormer +1
  Small domestic

• 5 Mymms Drive Brookmans Park AL9 7AE

  6/2023/0560/HOUSE Submitted 13 Mar 2023 150 yards away

  Erection of a first floor side extension, loft conversion including the raising of the roof ridge to create a crown roof and insertion of front and rear dormers and side rooflights, front garage extension, new front porch and alterations to fenestration.

  Granted Householder Extension Loft or dormer +1
  Small domestic

• 22 Mymms Drive Brookmans Park AL9 7AF

  6/2024/2265/LAWP Submitted 25 Nov 2024 150 yards away

  Certificate of lawfulness for a proposed detached outbuilding in rear garden

  Granted Lawful development

• 6/2026/1052/FULL Granted

  Unit 3 Woodside Lane Hatfield AL9 6DE

  Retention of an extension to the existing building and the erection of a rear extension following demolition of existing buildings (part retrospective)

  Received 17 Jun, published by the council 24 Jul 2026 Full applications
• 6/2026/1264/FULL Granted

  53 Brookmans Avenue Brookmans Park AL9 7QG

  Erection of dwelling with boundary wall and gates following demolition of existing property

  Received 17 Jul, published by the council 15 Aug 2026 Full applications
• 6/2026/1337/FULL Granted

  Royal Veterinary College Hawkshead Lane North Mymms AL9 7TA

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

  Received 30 Jul, published by the council 9 Aug 2026 Full applications
• 6/2026/1689/MAJ Awaiting decision

  Howlands House Howlands Welwyn Garden City AL7 4QJ

  Erection of a single 3 and 4-storey building comprising 44 temporary accommodation homes, staff office and laundry facilities, children's play space, cycle and vehicular parking, associated servicing, plant enclosure, substation, landscaping and external works.

  Received 25 Sep, published by the council 1 Oct 2026 Full applications
• 6/2026/0952/FULL Granted

  18 Fallowfield Welwyn Garden City AL7 1EE

  Retrospective application for change of use from amenity land to residential land to form part hardstanding and part garden land at the front of the property and installation of a drop kerb

  Received 1 Jun, published by the council 24 Jul 2026 Full applications