16 Mardley Hill Welwyn AL6 0TN

1. 23 Mar 2021

   Received by Welwyn Hatfield

2. 18 May 2021

   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.

Tree applications cover work to protected trees: those under a tree preservation order need consent for pruning or felling, and trees in a conservation area need six weeks written notice before work starts. The council assesses the amenity value of the tree and can refuse consent, approve it with conditions, or in conservation areas make a preservation order in response.

More on trees applications in our guide

• 16 Mardley Hill Welwyn AL6 0TN

  6/2026/1108/TPO Submitted 26 Jun 2026 1m away

  T1 - 1 x Oak to reduce by approximately 2m height and width, ensuring to cut back clearing the house sufficiently. Oak reducing due to canopy in close proximity to property and roof. (Covered by TPO 24 A3)

  Granted Trees

• 12 Mardley Hill Welwyn AL6 0TN

  6/2021/0943/TPO Submitted 23 Mar 2021 24m away

  T1 - re-pollard 3-4m T2 - fell Beech tree to ground level T3 - oak tree 3-4m crown reduction T4 - Beech tree 5-6m crown reduction

  Refused Trees

• 12 Mardley Hill Welwyn AL6 0TN

  6/2026/1205/TPO Submitted 10 Jul 2026 24m away

  98% historically approved · decision due ~7 Sep

  TPO 24 T3 - 1 x Beech tree to reduce overhanging lateral branches by approximately 2m. Reduce lateral overhang to no 16 as tree is too close to boundary and excessive overhang is leaving bird poo on kids play equipment

  Awaiting decision Trees

• 12 Mardley Hill Welwyn AL6 0TN

  6/2021/2127/TPO Submitted 14 Jul 2021 24m away

  T1 - oak - crown reduce 1-2m and deadwood T2 - oak fell to ground level T3 - beech - crown reduce 4-5m T4 - beech - crown reduce 4-5m

  Granted Trees

• 41 Mardley Hill Welwyn AL6 0TT

  6/2024/0758/FULL Submitted 24 Apr 2024 54m away

  Retention of outdoor seating area

  Granted Full applications

• 2 The Drive Welwyn AL6 0TR

  6/2021/1309/TPO Submitted 22 Apr 2021 75m away

  TPO 640: G5 (Oak x2) - Reduce by one third and thin TPO 640: T9 and T10 (Spruce x2) - Remove wind damaged branches TPO 640: T8 (Cedar) - Remove wind damaged branch

  Granted Trees

• 6/2026/1095/TPO Granted

  31 Parkside Welwyn AL6 9DQ

  T1 Goat Willow Pollard back to previous trimming points which is approx 3-4m off T2 Cedar Crown reduction by 2-3m approx back to previous pruning points

  24 Jun 2026 Trees
• 6/2026/1531/TPO Awaiting decision

  37 The Ridgeway Cuffley EN6 4BB

  T1 English Oak (Quercus robur) ref T316 fell to ground level

  2 Sep 2026 Trees
• 6/2026/1260/EMT Granted

  77 The Commons Welwyn Garden City AL7 4RZ

  Fell 1 dead Beech tree in rear garden.

  17 Jul 2026 Trees
• 6/2026/1271/TPO Granted

  33 Oaklands Rise Welwyn AL6 0RN

  Removal of dead hornbeam tree. (covered by TPO 673 (2017))

  20 Jul 2026 Trees
• 6/2026/0899/EMT Granted

  10 The Commons Welwyn Garden City AL7 4RP

  4 x conifer reduce to 6ft (1.8m) height. 3 x self set ash, fell & poison. 2 x self set sycamore, fell & poison

  20 May 2026 Trees