Land West of Woolmer’s Park The Hay Barn (Howell Court Farm) Essendon AL9 5RL

1. 13 Mar 2026

   Received by Welwyn Hatfield

2. 23 Apr 2026

   Validated

   Checked as complete and ready for consideration.

3. 24 Jul 2026

   Added to PlanIndex

4. 22 Aug 2026

   Status changed to Under Consultation

   Previously Under Consideration.

5. 22 Sep 2026

   Status changed to Under Consideration

   Previously Under Consultation.

6. 1 Oct 2026

   Status changed to Under Consultation

   Previously Under Consideration.

7. 7 Oct 2026

   Status changed to Under Consideration

   Previously Under Consultation.

8. Decision

   Awaiting decision

   Decision expected by 18 June 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 decided full applications in a median of 102 days. More in our guide to how long planning decisions take.

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.

• Holwell Court Farm Hertford Road Hatfield Herts. AL9 5RE

  3/21/0283/VAR Submitted 4 Feb 2021 50 yards away

  Application for removal of Condition 2 - (Restricting agricultural use) of approved application Ref: 3/03/0711/FP (Open fronted hay storage barn)

  Granted Amendments 7 docs

• 1-13 Holwell Court Hatfield AL9 5RL

  6/2026/1169/LB Submitted 6 Jul 2026 100 yards away

  Installation of full fibre network to the building

  Granted Heritage and listed buildings

• Holwell Court Farm Hay Barn West Of Woolmers Park Track North From Lower Hatfield Road Within Woolmers Park Letty Green Essendon Hertfordshire

  3/26/0318/FUL Submitted 6 Mar 2026 150 yards away

  80% historically approved · decision due ~4 Jun

  Demolition of existing agricultural barn and erection of a self-build dwelling house with associated upgraded vehicular accessway, parking, landscaping and ancillary works

  Awaiting decision Full applications New dwelling Demolition 47 docs
  Domestic

• Bothys field land at Holwell Court Farm Holwell Court Hatfield AL9 5RL

  6/2026/0400/FULL Submitted 4 Mar 2026 150 yards away

  Erection of a hay store and a machinery store

  Granted Full applications

• Bothys Field Holwell Court Farm

  6/2026/1406/COND Submitted 7 Aug 2026 150 yards away

  Submission of details pursuant to condition 1 (Biodiversity Net Gain Plan) and condition 2 (Landscape and Ecology Management Plan) on planning application 6/2026/0400/FULL

  Granted Conditions 1 doc

• Holwell Court Farm Holwell Court Hatfield AL9 5RL

  6/2026/0915/FULL Submitted 22 May 2026 200 yards away

  82% historically approved · decision due ~2 Sep

  Refurbishment of the existing residential farmhouse and the change of use of the adjoining stables from storage (use class B8) to residential (use class C3) to form a single residential unit. Erection of a single storey storey glazed links across the adjoining former stables and alteration of fenestration and associated hard and soft landscaping

  Awaiting decision Full applications Windows or glazing
  Small domestic

• 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