13 Kentish Lane Brookmans Park Hertfordshire AL9 6NG

1. 25 Nov 2022

   Received by Welwyn Hatfield

2. 20 Jan 2023

   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

• 13 Kentish Lane Hatfield AL9 6NG

  6/2023/0192/LAWP Submitted 26 Jan 2023 0m away

  Certificate of lawfulness for the erection of single storey rear extension

  Granted Lawful development Extension
  Small domestic

• 3 Upland Drive Brookmans Park AL9 6PS

  6/2021/1452/HOUSE Submitted 10 May 2021 133m away

  Erection of two storey side extension, part single/part first floor rear extension, front porch and rear dormer; increase in height of main roof; insertion of 2no front rooflights, 1no side rooflight and 1no rear rooflight; and external alterations.

  Granted Householder Extension Loft or dormer
  Small domestic

• 2 Upland Drive Hatfield AL9 6PS

  6/2021/1055/TPO Submitted 30 Mar 2021 138m away

  Reduce crown of 1 x Oak tree (T1) by 2m

  Granted Trees

• 2 Brookmans Manor 2 Georges Wood Road Hatfield AL9 7BZ

  6/2021/1044/TPO Submitted 29 Mar 2021 166m away

  T2 - conifer - crown reduce by 3m T5 - beech - reduce crown height and sides by 4m

  Granted Trees

• 4 Georges Wood Road Hatfield AL9 7BZ

  6/2021/1754/TPO Submitted 3 Jun 2021 180m away

  Trim western red cedar tree by 30% in height and trim sides that overhang boundary

  Granted Trees

• 4 Georges Wood Road Hatfield AL9 7BZ

  6/2021/1758/LAWP Submitted 4 Jun 2021 180m away

  Certificate of lawfulness for the erection of an outbuilding

  Granted Lawful development

• 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