5A Roundabout Lane Welwyn AL6 0TH

1. 10 Jul 2024

   Received by Welwyn Hatfield

2. 4 Sep 2024

   Decision issued: Refused

3. 9 Aug 2026

   Added to PlanIndex

The council refused this application for the reasons set out on the decision notice, which the council portal holds in full. Only the applicant can appeal a refusal; the time limit runs from the decision date and is shorter for householder schemes.

Refusal does not prevent a fresh attempt. Applicants often address the reasons for refusal and resubmit, so a refused scheme is not necessarily the end of proposals for the site.

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

• 18 Briary Wood Lane Welwyn AL6 0TF

  6/2026/1376/HOUSE Submitted 4 Aug 2026 52m away

  83% historically approved · decision due ~1 Oct

  Erection of a single storey ground floor extension & part two storey rear, raising the roof and alterations to facilitate loft conversion to include new crown roof with front & rear dormers

  Awaiting decision Householder Extension Loft or dormer
  Small domestic

• 2A Hangmans Lane Welwyn AL6 0TJ

  6/2024/1845/TPO Submitted 25 Sep 2024 117m away

  TPO 677 (2017) - Trim oak tree by 25% - 30% of the total existing tree cover. In particular cutting back some of the longer branches overhanging the road.

  Granted Trees

• 15 Mardley Wood Welwyn AL6 0UY

  6/2021/2017/LAWP Submitted 2 Jul 2021 177m away

  Erection of a single storey front extension and a single storey rear extension, following the demolition of existing front porch canopy and rear conservatory, plus alterations to fenestration to existing front and side elevations.

  Refused Lawful development Extension Demolition +1
  Small domestic

• 9 Mardley Hill Welwyn AL6 0UE

  6/2026/1198/HOUSE Submitted 10 Jul 2026 180m away

  83% historically approved · decision due ~4 Sep

  Erection of single storey front, side and rear extension, raising the existing roof and formation of rear dormer. Alterations to the fenestration, including, installation of new windows and doors and external rendering and cladding, following the demolition of garage and porch

  Awaiting decision Householder Extension Loft or dormer +2
  Small domestic

• 21E Canonsfield Welwyn AL6 0QB

  6/2021/1878/HOUSE Submitted 18 Jun 2021 184m away

  Erection of a part two storey front extension

  Refused Householder Extension
  Domestic

• 1A Marlborough Close Welwyn AL6 0UG

  6/2022/2782/HOUSE Submitted 7 Dec 2022 211m away

  Erection of front porch, and part two, part single storey side and rear extension incorporating conversion of existing garage space and elongation of existing rear dormer window. Elongation of front dormer window and external alterations. Change of external materials and landscape works

  Granted Householder Extension Loft or dormer +1 2 docs
  Small domestic

• 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