6/2026/0150/HOUSE

1. 29 Jan 2026

   Received by Welwyn Hatfield

2. 30 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

• 6/2026/0201/EM Granted

  12 The Valley Green Welwyn Garden City AL8 7DQ

  Erection of ground floor rear extension following the removal of existing conservatory

  4 Feb 2026 0m away
• 6/2024/1768/EMT Granted

  32 Valley Road, Welwyn Garden City, AL8 7DN

  1 x Elderberry to remove to ground level. This tree is declining. 1 x Plum to remove to ground level. This is dead. 1 x Apple (dead) to remove to ground level. This is dead

  12 Sep 2024 60m away Trees
• 6/2021/1892/TC Granted

  17 The Valley Green Welwyn Garden City AL8 7DQ

  T1 - Large Cherry - reduce by up to 30% T2 - Holly - fell T3 - Lawson Cypress - fell T4 - Holly - fell T5 - 2 x Lawson Cypress - fell T6 - 5 x Large Leyland Cypress - reduce by 30%

  21 Jun 2021 61m away Trees
• 6/2021/1776/EMH Granted

  17 The Valley Green Welwyn Garden City AL8 7DQ

  Erection of a single and two storey rear extension garage conversion to habitable accommodation and replacement front canopy.

  7 Jun 2021 61m away Householder
• 6/2026/1081/EMT Awaiting decision

  23 Dellcott Close, Welwyn Garden City, AL8 7BB

  Fell 1 x apple tree. Fell 1 x Himalayan birch.

  22 Jun 2026 76m away Trees
• 6/2026/1078/TC Awaiting decision

  23 Dellcott Close Welwyn Garden City AL8 7BB

  Fell 1 x apple tree. Fell 1 x Himalayan birch.

  22 Jun 2026 76m away Trees

• 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