8 Mardley Heights Welwyn AL6 0TX

1. 8 Oct 2024

   Received by Welwyn Hatfield

2. 9 Oct 2024

   Validated

   Checked as complete and ready for consideration.

3. 12 Dec 2024

   Decision issued: Granted

4. 25 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

• 37 Mardley Avenue Welwyn AL6 0TU

  6/2025/2248/FULL Submitted 23 Oct 2025 49m away

  Erection of a single chalet dwelling

  Refused Full applications
  Domestic

• 5 Mardley Heights Welwyn AL6 0TX

  6/2021/1299/TPO Submitted 22 Apr 2021 50m away

  Prune T1 Oak located at the front of property according to the following specifications: • Crown reduction by removing up to 2 meters growth pruning back to suitable growth points to leave a balanced crown Crown clean removing any damaged, diseased and deadwood Prune G1 Various Species, Beech, Berberis and flowering Current located at the front garden according to the following specifications: • Prune back hard garden side back to mainstem of Beech and following line down other species garden side Prune T3 Pine located at the front of property according to the following specifications: • Crown reduction by removing 1.5 meters growth in height pruning back to suitable growth points reduce lateral branches to leave a balanced crown Prune G3 Mixed Hegde located at the Left of driveway according to the following specifications: • Trim back sides and top to leave a tidy formative shaped hedge trimming back hard form driveway without cuasing possible future browning off Prune T1 Beech located at the left rear of house according to the following specifications: • Crown reduction by removing up to 2.5 meters growth pruning back to suitable growth points to leave a balanced crown bring down height enough but not too much as to keep privacy Crown clean removing any damaged, diseased and deadwood

  Granted Trees

• 47 Mardley Hill Welwyn AL6 0TT

  6/2021/1697/TPO Submitted 27 May 2021 58m away

  T1 - Sweet Chestnut repollard back to previous points gaining some control and access of light. T2 - Overall reduce and shape all round by approx 25%. T3 - T6 Are all neighbours trees. Looking to cut all trees back to boundary line T3 - Oak Tree to cut tree back to boundary line. T4 - T5 Lime Trees to cut trees back to boundary line. T6 - Pine Tree to shorten just a couple of limbs back a couple of meters.

  Granted Trees

• 20 Mardley Heights Welwyn AL6 0SX

  6/2024/1895/TPO Submitted 1 Oct 2024 60m away

  2 x Silver birches branches thinned out. Fell 1 x Hornbeam. (TPO 641 G5 (2017))

  Refused Trees

• 35 Mardley Hill Welwyn AL6 0TT

  6/2021/1099/HOUSE Submitted 6 Apr 2021 75m away

  Replacement garage

  Granted Householder
  Domestic

• 41 Mardley Hill Welwyn AL6 0TT

  6/2024/0758/FULL Submitted 24 Apr 2024 82m away

  Retention of outdoor seating area

  Granted Full applications

• 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