26 Peregrine Way Hatfield AL10 9UP

1. 10 Mar 2026

   Received by Welwyn Hatfield

2. 30 Apr 2026

   Decision issued: Granted

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.

A lawful development certificate is a legal determination, not a planning judgement. It asks the council to confirm either that existing use or works are lawful, often through the passage of time, or that a proposal would not need planning permission at all. The applicant must prove the facts; the merits of the scheme are not considered.

More on lawful development applications in our guide

• 31 Peregrine Way Hatfield AL10 9UP

  6/2021/1331/HOUSE Submitted 26 Apr 2021 50m away

  Conversion of garage into habitable space.

  Granted Householder
  Domestic

• The former Three Valleys Water site (now Peregrine Way) Bishops Rise Hatfield 38 Hatfield Delivery Office Po Box 48 Town Centre Hatfield AL10 9HL

  6/2025/2267/VAR Submitted 24 Oct 2025 55m away

  Variation of Condition 2 (Approved Plans) and removal of condition 16 (Kissing Gate) on planning permission S6/2012/1790/S73B

  Refused Amendments

• Hatfield Pumping Station Bishops Rise Hatfield AL10 9UN

  6/2023/0504/TPO Submitted 6 Mar 2023 57m away

  Three Lombardy poplars (T3, T10 and T11) to be removed to facilitate improvement works to existing underground utilities. One Lombardy poplar (T2) to be removed due to extensive basal cavity with evidence of decay. TPO 561 (2016)

  Granted Trees

• 17 Sycamore Avenue Hatfield AL10 8LZ

  6/2026/1031/HOUSE Submitted 12 Jun 2026 112m away

  Erection of a part single storey, part two-storey rear extension, garage conversion, front porch extension, alterations to fenestration and external materials

  Withdrawn Householder Extension Windows or glazing
  Small domestic

• 1 Peregrine Way Hatfield AL10 9UP

  6/2021/1025/HOUSE Submitted 29 Mar 2021 116m 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

• 14 Sparrowhawk Place Hatfield AL10 9UR

  6/2026/1320/TPO Submitted 28 Jul 2026 119m 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

• 6/2026/0735/LAWE Refused

  1 Northaw Place Coopers Lane Northaw Potters Bar EN6 4NQ

  Certificate of lawfulness for the existing use of the land as residential garden land ancillary to the dwellinghouse continuously since 2012

  27 Apr 2026 Lawful development
• 6/2026/1132/LAWE Refused

  19 Cunningham Avenue Hatfield AL10 9LR

  Certificate of existing lawfulness of a 5 person HMO since 6 April 2006

  30 Jun 2026 Lawful development
• 6/2026/1506/LAWP Awaiting decision

  Gosmore Brocket Road Welwyn Garden City AL8 7TT

  Erection of single storey side extensions x 2 and two storey rear extension

  27 Aug 2026 Lawful development
• 6/2026/1503/LAWE Awaiting decision

  27 Batterdale Hatfield AL9 5JG

  Certificate of lawfulness for the existing like-for-like replacement of damaged and aged windows on the front and rear elevations

  26 Aug 2026 Lawful development
• 6/2026/1044/LAWP Granted

  5 Peartree Court Welwyn Garden City AL7 3XN

  Certificate of lawfulness for the change of use from C3 (dwellinghouse) to C4 (HMO for up to 6 unrelated residents)

  15 Jun 2026 Lawful development