1 High Dells Hatfield AL10 9JD

1. 7 Aug 2026

   Received by Welwyn Hatfield

2. 22 Aug 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 2 October 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. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.

The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.

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

• 1 High Dells Hatfield AL10 9JD

  6/2022/2904/FULL Submitted 23 Dec 2022 0m away

  Erection of a single storey, part two storey rear extension with erection of a two storey side extension and subdivision of plot to facilitate the creation of 1 dwelling.

  Refused Full applications Extension
  Domestic

• 1 High Dells Hatfield AL10 9JD

  6/2025/2403/FULL Submitted 17 Nov 2025 0m away

  Erection of a two-storey dwelling as a subdivision of the existing plot, with associated car parking areas and erection of a single-storey rear extension to the existing property

  Refused Full applications Extension
  Small domestic

• 78 Bishops Rise Hatfield A10 9HH

  6/2024/1920/HOUSE Submitted 8 Oct 2024 35m away

  Erection of a single storey rear and side extension, alterations to openings

  Granted Householder Extension
  Small domestic

• 64 Bishops Rise Hatfield Hertfordshire AL10 9HH

  6/2022/2783/PN8 Submitted 8 Dec 2022 97m away

  Prior approval for flat roof single storey rear extension measuring 6m in depth, 3m in height and 2.4m to the eaves

  Granted Prior approval Extension
  Small domestic

• 14 Sparrowhawk Place Hatfield AL10 9UR

  6/2026/1320/TPO Submitted 28 Jul 2026 120m away

  98% historically approved · decision due ~22 Sep

  T3 Cherry 1m reduction of entire tree. T4 Cherry 1m reduction of entire tree. T5 Cherry 1m reduction of entire tree. (covered by TPO562 (2016))

  Awaiting decision Trees

• 1 Peregrine Way Hatfield AL10 9UP

  6/2021/1025/HOUSE Submitted 29 Mar 2021 167m away

  Erection of two storey front and side extension; conversion of loft to habitable space; insertion of upper floor window on side elevation; and insertion of rooflights.

  Refused Householder Extension Loft or dormer +1
  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
• 6/2026/1335/PN8 Awaiting decision

  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

  30 Jul 2026 Prior approval