23-25 Mill Lane Welwyn AL6 9EU

1. 16 Feb 2026

   Received by Welwyn Hatfield

2. 26 May 2026

   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.

This type of application deals with conditions attached to an existing permission, either by supplying the details a condition requires, called discharging it, or by asking to vary or remove one. It does not reopen the principle of the permission itself. Building often cannot lawfully start, or continue past a set stage, until the named conditions are discharged.

More on conditions applications in our guide

• 23-25 Mill Lane Welwyn AL6 9EU

  6/2026/0262/COND Submitted 16 Feb 2026 0m away

  Submission of details pursuant to condition number 5 (Material details) and 6 (Hard and soft landscaping) on planning permission 6/2025/1212/HOUSE

  Granted Conditions
  Major scheme

• 36 Mimram Road Welwyn AL6 9HA

  6/2019/2831/HOUSE Submitted 8 Nov 2019 25m away

  Erection of rear infill extension with roof light and alterations to openings and installation of 3 roof lights to facilitate loft conversion

  Granted Householder Extension Loft or dormer
  Domestic

• 17-17A Mill Lane Welwyn AL6 9EU

  6/2026/1370/LAWP Submitted 3 Aug 2026 31m away

  81% historically approved · decision due ~30 Sep

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

  Awaiting decision Lawful development New dwelling

• 17-17a Mill Lane Welwyn AL6 9EU

  6/2026/0443/PN29 Submitted 11 Mar 2026 31m away

  Change of use of offices to 3 x 2 bedroom flats

  Decided Prior approval New dwelling

• 1 Mimram Walk Welwyn AL6 9EZ

  6/2022/2721/TC Submitted 1 Dec 2022 32m away

  Weeping Beech in rear garden to south of property. 30% Crown reduction to balance

  Granted Trees

• 31 Mill Lane Welwyn AL6 9EU

  6/2024/2010/TC Submitted 18 Oct 2024 58m away

  T1 Yew to cut back overhanging branches to the boundary.

  Granted Trees

• 6/2026/0942/COND Granted

  The Coach and Horses 61 Newgate Street Village Hertford SG13 8RA

  Submission of details pursuant to condition number 1 (Construction Method Statement) & 2 (Archaeological Written Scheme of Investigation) on planning permission 6/2022/1957/FULL

  29 May 2026 Conditions
• 6/2026/0979/COND Granted

  Marlborough Court Green Close Brookmans Park AL9 7ST

  Submission of details pursuant to condition 1 (construction methodology) on planning permission 6/2025/0434/FULL

  3 Jun 2026 Conditions
• 6/2025/0770/S106A Decided

  Land to the north east of King George V Playing Fields, Northaw Road East, Cuffley, Potters Bar EN6 4RD

  Application to modify S106 agreement dated 31 March 2022 in relation to planning application S6/2015/1342/PP

  24 Apr 2025 Conditions
• 6/2026/1239/COND Granted

  58 Bell Lane Brookmans Park AL9 7AY

  Submission of details pursuant to condition number 2 (Construction Traffic Management Plan) on planning permission 6/2025/2133/FULL

  15 Jul 2026 Conditions
• 6/2026/1483/COND Awaiting decision

  57 Tolmers Road Cuffley Potters Bar EN6 4JG

  Submission of details pursuant to condition number 3 (Hard and Soft Landscaping) on planning permission 6/2026/0435/FULL

  24 Aug 2026 Conditions