13 Kentish Lane Hatfield AL9 6NG

1. 26 Jan 2023

   Received by Welwyn Hatfield

2. 17 Mar 2023

   Decision issued: Granted

3. 24 Jul 2026

   Added to PlanIndex

Welwyn Hatfield granted permission on 17 March 2023, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.

A lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.

• 13 Kentish Lane Brookmans Park Hertfordshire AL9 6NG

  6/2022/2685/LAWP Submitted 25 Nov 2022 50 yards away

  Certificate of lawfulness for proposed single storey side extension

  Granted Lawful development Extension
  Small domestic

• 3 Upland Drive Brookmans Park AL9 6PS

  6/2021/1452/HOUSE Submitted 10 May 2021 150 yards 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 150 yards 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 200 yards 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 200 yards 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 200 yards away

  Certificate of lawfulness for the erection of an outbuilding

  Granted Lawful development

• 6/2026/1370/LAWP Granted

  17-17A Mill Lane Welwyn AL6 9EU

  Certificate of lawfulness for the change of use of offices to 3 x 2 bedroom flats

  Received 3 Aug, published by the council 15 Aug 2026 Lawful development
• 6/2026/1218/LAWP Granted

  43 Great Ley Welwyn Garden City AL7 4TJ

  Certificate of lawfulness for rear dormer roof extension to form a loft conversion

  Received 13 Jul, published by the council 9 Aug 2026 Lawful development
• 6/2026/1250/LAWP Granted

  40 Dellsome Lane Welham Green Hatfield AL9 7ND

  Certificate of lawfulness for Class A - Larger single storey rear extension (previously subject to prior approval application ref: 6/25/1851/PN8), Class B - Roof extension/hip to gable conversion, Class C - Other alterations to roof

  Received 16 Jul, published by the council 9 Aug 2026 Lawful development
• 6/2026/1210/LAWE Refused

  9 Flamingo Close Hatfield AL10 9LU

  Certificate of lawfulness for the existing use of the property as a HMO (Use Class C4) in continuous use for over 10 years

  Received 10 Jul, published by the council 9 Aug 2026 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

  Received 27 Apr, published by the council 24 Jul 2026 Lawful development