217 Knightsfield Welwyn Garden City AL8 7QL

1. 24 Mar 2021

   Received by Welwyn Hatfield

2. 29 Mar 2021

   Validated

   Checked as complete and ready for consideration.

3. 24 May 2021

   Decision issued: Granted

4. 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

• 217 Knightsfield Welwyn Garden City AL8 7QL

  6/2021/2061/EM Submitted 17 Jun 2021 26m away

  Demolition of rear lean-to structure and erection of single storey rear extension

  Granted Extension Demolition
  Small domestic

• 228 Knightsfield Welwyn Garden City AL8 7RB

  6/2024/1710/EMT Submitted 6 Sep 2024 72m away

  Maple to fell. No replacement tree.

  Granted Trees

• 5 Malmsdale Welwyn Garden City AL8 7QN

  6/2021/0900/EMT Submitted 19 Mar 2021 73m away

  G1 Lawsons Cypress - fell G2 Privet bushes - fell Prune T1 Lilac - Crown reduction in height and shape by removing up to 1.5 meters growth; crown clean removing any damaged, diseased and deadwood Prune T2 Ceanothus - Crown reduction/re-shape by removing up to 1.5 meters growth

  Granted Trees

• 251 Knightsfield Welwyn Garden City AL8 7RA

  6/2021/1782/EM Submitted 8 Jun 2021 123m away

  Erect new shed type structure in place of current shed and move current shed alongside.

  Granted
  Small domestic

• 51 Oakdale Welwyn Garden City AL8 7QP

  6/2021/0739/HOUSE Submitted 8 Mar 2021 180m away

  Retention of erection of a single storey side storage unit

  Refused Householder
  Small domestic

• 51 Oakdale Welwyn Garden City AL8 7QP

  6/2021/2149/EM Submitted 15 Jul 2021 180m away

  Retention of single storey side storage unit with flue

  Granted
  Small domestic

• 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