66 Hillfield Hatfield AL10 0TU

1. 30 Jul 2024

   Received by Welwyn Hatfield

2. 10 Sep 2024

   Decision issued: Prior Approval Not Required

3. 9 Aug 2026

   Added to PlanIndex

Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.

Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.

Prior approval applications arise where permitted development rights already grant the principle of the work, such as larger home extensions, changes of use to housing or agricultural buildings. The council may only consider the specific matters set out in the rules, for example transport, flooding or appearance, and in many classes the work may proceed if the council does not respond within the deadline, commonly 56 days.

More on prior approval applications in our guide

• 55 Wood Common Hatfield AL10 0UE

  6/2026/0948/HOUSE Submitted 29 May 2026 63m away

  Erection of part single, part two storey rear extension and installation of two windows within the right elevation.

  Refused Householder Extension Windows or glazing
  Domestic

• Garages Lockley Crescent and Drovers Way Hatfield AL10 0TL

  6/2026/1387/COND Submitted 5 Aug 2026 105m away

  88% historically approved · decision due ~30 Sep

  Submission of details pursuant to condition number 1 (Construction Management Plan) on planning permission 6/2022/0010/FULL

  Awaiting decision Conditions

• 63 Hillfield Hatfield AL10 0TY

  6/2021/1165/LAWP Submitted 12 Apr 2021 108m away

  Certificate of lawfullness for the conversion of a garage for habitable space and replacement of garage door with window

  Refused Lawful development Windows or glazing

• 49 Lockley Crescent Hatfield AL10 0TL

  6/2021/1475/HOUSE Submitted 10 May 2021 134m away

  Erection of single storey rear extension

  Granted Householder Extension
  Small domestic

• 49 Lockley Crescent Hatfield AL10 0TL

  6/2021/1476/LAWP Submitted 10 May 2021 134m away

  Certificate of lawfulness for the erection of outbuilding studio in rear garden

  Refused Lawful development

• 105 Great North Road Hatfield AL9 5LR

  6/2024/1586/FULL Submitted 21 Aug 2024 137m away

  Erection of a three bedroom detached dwellinghouse

  Granted Full applications
  Domestic

• 6/2026/1385/PN14 Granted

  Car Park at Bishops Square Hatfield Business Park Hatfield AL10 9NE

  Prior approval for demolition of existing carpark building

  5 Aug 2026 Prior approval
• 6/2026/1125/PN8 Granted

  39 The Ridgeway Northaw EN6 4BD

  Prior approval for the erection of a single storey rear extensions measuring 8m in depth, 4m in height and 3m to the eaves

  29 Jun 2026 Prior approval
• 6/2026/1217/PN8 Refused

  48 Great Ganett Welwyn Garden City AL7 3DE

  Prior approval for a single storey rear extension measuring 4m in depth, 3m to the eaves and the maximum height of 3m

  13 Jul 2026 Prior approval
• 6/2026/1411/PN15 Awaiting decision

  Grass verge along Bessemer Road Bessemer Road Welwyn Garden City AL7 1ET

  Prior approval for the installation of 20m high Taurus Street pole with 9no antennas, 6no RRH and equipment housing, together with associated ancillary development

  10 Aug 2026 Prior approval
• 6/2026/1399/PN8 Awaiting decision

  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

  7 Aug 2026 Prior approval