40 Dellsome Lane Welham Green Hatfield AL9 7ND

1. 16 Jul 2026

   Received by Welwyn Hatfield

2. 17 Jul 2026

   Validated

   Checked as complete and ready for consideration.

3. 9 Aug 2026

   Added to PlanIndex

4. 8 Sep 2026

   Decision issued: Granted

Welwyn Hatfield granted permission on 8 September 2026, 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.

• 6 Parsonage Lane Welham Green Hatfield AL9 7LU

  6/2021/2807/LAWP Submitted 29 Sep 2021 50 yards away

  Certificate of lawfulness for external alterations to existing windows and bifold door.

  Refused Lawful development Windows or glazing

• 6 Parsonage Lane Welham Green Hatfield AL9 7LU

  6/2021/1778/HOUSE Submitted 8 Jun 2021 50 yards away

  Erection of a two storey side and rear extension, demolition of garage and alterations to fenestration

  Granted Householder Extension Demolition +1
  Domestic

• 2 Parsonage Lane Welham Green Hatfield AL9 7LU

  6/2026/0989/LAWP Submitted 4 Jun 2026 50 yards away

  Certificate of lawfulness for the erection of a single storey rear extension

  Granted Lawful development Extension
  Small domestic

• 95 Dellsome Lane Welham Green Hatfield AL9 7NE

  6/2021/1441/LAWP Submitted 7 May 2021 50 yards away

  Certificate of lawfulness for proposed loft conversion, including three rooflights and one window on the rear dormer.

  Granted Lawful development Loft or dormer Windows or glazing

• 54 Dellsome Lane Welham Green Hatfield AL9 7ND

  6/2021/0897/HOUSE Submitted 19 Mar 2021 50 yards away

  Erection of an outbuilding at the end of rear garden

  Granted Householder
  Small domestic

• 6 Huggins Lane Welham Green Hatfield AL9 7LR

  6/2026/1203/HOUSE Submitted 8 Jul 2026 50 yards away

  87% historically approved · decision due ~22 Sep

  Erection of a two storey side extension, front boundary fencing with gates and formation of hardstanding for off road parking.

  Awaiting decision Householder Extension
  Domestic

• 6/2026/1287/LAWE Refused

  Woodhurst Farm, Stables Cattlegate Road Northaw Potters Bar EN2 8AU

  Certificate of Lawfulness for existing use of a former agricultural building (Barn) as a self- contained single residential dwelling house (Use Class C3) following its conversion and continuous occupation for a period in excess of 10 years prior to the date of this application

  Received 22 Jul, published by the council 9 Aug 2026 Lawful development
• 6/2026/1306/LAWP Granted

  184 Unit 4 St Albans Road West Hatfield AL10 0TF

  Certificate of lawfulness for the change of use of the front office portion of Unit 4 to a daycare/crèche facility, to include an internal mezzanine, within Use Class E.

  Received 27 Jul, published by the council 22 Aug 2026 Lawful development
• 6/2026/1328/LAWP Granted

  41 Great North Road Welwyn Garden City AL8 7TJ

  Certificate of lawfulness for a proposed hip to gable loft conversion with rear facing dormer and single storey side extension, plus insertion of rooflight to front elevation

  Received 29 Jul, published by the council 9 Aug 2026 Lawful development
• 6/2026/1288/LAWE Granted

  1 The Limberlost Welwyn AL6 9TS

  Certificate of existing lawfulness for a single storey extension

  Received 22 Jul, published by the council 22 Aug 2026 Lawful development
• 6/2026/1297/LAWE Granted

  White Lodge Farm The Bellbrook Bulls Lane Hatfield AL9 7AZ

  Certificate of lawfulness in relation to existing gate and fencing

  Received 23 Jul, published by the council 9 Aug 2026 Lawful development