6/2026/0560/HOUSE

1. 26 Mar 2026

   Received by Welwyn Hatfield

2. 23 Jun 2026

   Decision issued: Granted

3. 24 Jul 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.

Householder applications cover work to an existing house and its garden: extensions, loft and garage conversions, porches, outbuildings and similar alterations within the boundary of the home. They cannot be used to create a separate dwelling or change what the building is used for. Councils aim to decide them within eight weeks, and immediate neighbours are usually notified and given a chance to comment.

More on householder applications in our guide

• 6/2026/1205/TPO Awaiting decision

  12 Mardley Hill Welwyn AL6 0TN

  TPO 24 T2 - 1 x Oak to remove in sections to ground level. Tree is suppressed by neighbouring tree leaving a high canopy, blocking lights to neighbouring gardens as part of a larger group **a reduction doesnt seem suitable due to the existing canopy shape. Reducing the tree significantly will create a denser thicker poorly attached growth. Client happy to replant 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

  10 Jul 2026 143m away Trees
• 6/2026/1108/TPO Awaiting decision

  16 Mardley Hill Welwyn AL6 0TN

  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)

  26 Jun 2026 162m away Trees
• 6/2022/2636/COND Withdrawn

  15 The Drive Welwyn AL6 0TW

  Submission of details pursuant of condition 1 (external materials) on planning application 6/2020/1902/FULL

  21 Nov 2022 224m away Conditions
• 6/2021/1697/TPO Granted

  47 Mardley Hill Welwyn AL6 0TT

  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.

  27 May 2021 249m away Trees
• 6/2021/1732/TPO Granted

  53 Mardley Hill Welwyn AL6 0TT

  Fell 1 x Leyland Cypress tree

  2 Jun 2021 282m away Trees
• 6/2022/2782/HOUSE Granted

  1A Marlborough Close Welwyn AL6 0UG

  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

  7 Dec 2022 294m away Householder

• 6/2025/2262/HOUSE Granted

  9 Hill Rise Cuffley Potters Bar EN6 4ED

  Erection of a part single and part two storey rear extension, garage conversion to habitable use and alterations to fenestration

  24 Oct 2025 Householder
• 6/2026/0904/HOUSE Granted

  7 Greenfield Hatfield AL9 5HW

  Erection of a single storey rear extension, conversion of double integral garage, covered porch, replacement front dormer and erection of new boundary wall following the removal of the existing hedge

  21 May 2026 Householder
• 6/2026/0975/HOUSE Granted

  4 Northwood Welwyn Garden City AL7 2PX

  Erection of single storey rear extension and open pergola following demolition of conservatory

  3 Jun 2026 Householder
• 6/2026/0998/HOUSE Granted

  41 Lemsford Lane Welwyn Garden City AL8 6YN

  Erection of a single storey side/rear extension following the demolition of existing outbuilding

  8 Jun 2026 Householder
• 6/2026/1293/HOUSE Awaiting decision

  33 Claves Crescent Welwyn Garden City AL7 1WN

  Erection of a single storey rear conservatory

  22 Jul 2026 Householder