6/2021/1758/LAWP

1. 4 Jun 2021

   Received by Welwyn Hatfield

2. 7 Jun 2021

   Validated

   Checked as complete and ready for consideration.

3. 26 Jul 2021

   Decision issued: Granted

4. 24 Jul 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

• 6/2025/0979/HOUSE Granted

  11 Georges Wood Road Brookmans Park AL9 7BY

  Erection of a two-storey front/side extension, single storey rear extension, installation of dormers to facilitate the conversion of the loft to habitable space

  27 May 2025 117m away Householder
• 6/2026/0686/FULL Withdrawn

  11 Georges Wood Road Brookmans Park AL9 7BY

  Erection of new dwelling and associated hard and soft landscaping following demolition of the existing dwelling and the detached garage

  17 Apr 2026 117m away Full applications
• 6/2023/0192/LAWP Granted

  13 Kentish Lane Hatfield AL9 6NG

  Certificate of lawfulness for the erection of single storey rear extension

  26 Jan 2023 180m away Lawful development
• 6/2021/1746/PN8 Refused

  36 Pine Grove Brookmans Park Hatfield AL9 7BS

  Prior approval for the erection of a single storey rear extension

  3 Jun 2021 302m away Prior approval
• 6/2026/0703/HOUSE Awaiting decision

  57 Great North Road Brookmans Park AL9 6LA

  Erection of part double part single storey rear extension, single storey front porch extension, raising of roof and eaves to accommodate loft conversion, alterations to materials and fenestration, erection of front boundary wall and gates

  20 Apr 2026 459m away Householder
• 6/2024/1673/HOUSE Granted

  15 Mymms Drive Brookmans Park AL9 7AE

  Conversion of the garage into a habitable room, erection of part single, part double storey front extension, first floor rear extension. Alterations to the roof including, raising the ridge and formation of crown roof with front and rears dormers and replacement roof tiles and the re-positioning of windows and doors and new render to external walls

  2 Sep 2024 479m away Householder

• 6/2026/0769/LAWE Refused

  6 St Audreys Close Hatfield AL10 8UW

  Certificate of existing lawfulness of an HMO

  1 May 2026 Lawful development
• 6/2025/0845/LAWE Refused

  Park Farm Northaw Road West Northaw EN6 4NS

  Certificate of lawfulness for mixed use of field for storage, dog exercising and training, and agriculture, and the stationing of a caravan, together with ancillary temporary uses including camping

  2 May 2025 Lawful development
• 6/2026/0932/LAWP Granted

  169 Bishops Rise Hatfield AL10 9EP

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

  27 May 2026 Lawful development
• 6/2026/0900/LAWP Refused

  41 Great North Road Welwyn Garden City AL8 7TJ

  Certificate of lawfulness for the erection of a hip to gable roof extension, formation of rear dormer, erection of single storey side extension and insertion of rooflight to front elevation

  20 May 2026 Lawful development
• 6/2026/1045/LAWP Granted

  6 The Gardens Brookmans Park AL9 7UL

  Certificate of lawfulness for the conversion of garage, elevational changes to front and rear elevations and new roof lights

  16 Jun 2026 Lawful development