6/2026/0917/HOUSE

1. 22 May 2026

   Received by Welwyn Hatfield

2. 17 Jul 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

• 6/2026/0836/EM Granted

  307 Knightsfield Welwyn Garden City AL8 7NJ

  Erection of single storey rear extension with roof lanterns, covered verandah area, installation of roof lantern to existing side roof and replacement window to rear

  12 May 2026 0m away
• 6/2026/0205/MAJ Awaiting decision

  Monks Walk School Knightsfield Welwyn Garden City AL8 7NL

  Erection of indoor sports hall, provision of external sports field viewing bank, and associated ground works, and hard and soft landscaping

  5 Feb 2026 98m away Full applications
• 6/2021/1604/EMT Granted

  19 Crossway Welwyn Garden City AL8 7ED

  Leylandii hedge consisting of 10-12 bushes/shrubs - remove. Replace with combination hedge of Laurel, Beech and Photinia. Christmas tree spruce - remove

  19 May 2021 112m away Trees
• 6/2026/1050/EM Awaiting decision

  19 Crossway Welwyn Garden City AL8 7ED

  Plum hedge row to reduce by 2m height. Reduce lateral branches over garden area by 1.5-2m. They are blocking lots of light to half the garden and causing a nuisance. Want to maintain height and width

  16 Jun 2026 112m away
• 6/2021/1638/EMT Granted

  14 Uplands Welwyn Garden City AL8 7EW

  Fell 1 x Goat Willow tree

  21 May 2021 135m away Trees
• 6/2021/1487/HOUSE Granted

  1 Crossway Welwyn Garden City AL8 7EB

  Erection of a rear conservatory

  11 May 2021 141m 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