19 The Chase Welwyn AL6 0QT

1. 14 Apr 2021

   Received by Welwyn Hatfield

2. 9 Jun 2021

   Decision issued: Granted

3. 9 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.

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

• 21 The Chase Welwyn AL6 0QT

  6/2023/0237/HOUSE Submitted 31 Jan 2023 9m away

  Erection of single storey rear extension and garage conversion with new roof and 2 x rooflights. Plus alterations to openings to existing front and rear elevations, including replacing front window

  Granted Householder Extension Loft or dormer +2
  Small domestic

• 29 The Chase Welwyn AL6 0QT

  6/2021/0826/HOUSE Submitted 15 Mar 2021 50m away

  Erection of a part single storey, part two storey side and rear extension

  Granted Householder Extension 1 doc
  Small domestic

• 4 The Chase Welwyn AL6 0QT

  6/2026/0721/HOUSE Submitted 23 Apr 2026 50m away

  Reduction in height of the existing retaining boundary wall and alteration to and extending the garden boundary fencing.

  Refused Householder
  Small domestic

• The North Star 82 Great North Road Welwyn AL6 0TA

  6/2026/1067/FULL Submitted 19 Jun 2026 98m away

  81% historically approved · decision due ~28 Aug

  Use of an existing flat roof as a first-floor teaching terrace and installation of an external fire escape staircase

  Awaiting decision Full applications

• The North Star Nursery 82 Great North Road Oaklands AL6 0TA

  6/2026/0016/COND Submitted 5 Jan 2026 108m away

  Submission of details pursuant to condition 1 (Biodiversity Gain Plan), condition 2 (Habitat Management Monitoring Plan), condition 3 (Landscaping) and condition 4 (Material samples of proposed fenestration) on planning permission 6/2025/0781/FULL

  Granted Conditions Windows or glazing

• The North Star 82 Great North Road Welwyn AL6 0TA

  6/2026/0025/VAR Submitted 7 Jan 2026 108m away

  Variation of condition 15 (amendments to the approved scheme) on planning permission 6/2025/0781/FULL

  Granted Amendments

• 6/2026/1228/HOUSE Granted

  109 Mount Way Welwyn Garden City AL7 4LA

  Erection of single storey front extension

  13 Jul 2026 Householder
• 6/2026/1011/HOUSE Granted

  5 Brookside Crescent Cuffley Potters Bar EN6 4QW

  Erection of rear extension, single storey side extension, new porch, additions/alterations to windows on side elevation and demolition of garage

  9 Jun 2026 Householder
• 6/2026/0703/HOUSE Granted

  57 Great North Road Brookmans Park AL9 6LA

  Erection of part double part single storey rear extension, single storey front porch extension, raising of roof and eaves to accommodate loft conversion, alterations to materials and fenestration, erection of front boundary wall and gates

  20 Apr 2026 Householder
• 6/2026/0534/HOUSE Refused

  16 Chipmunk Chase Hatfield AL10 9GH

  Retention of single storey rear extension and garage conversion to study/office

  24 Mar 2026 Householder
• 6/2026/1175/HOUSE Granted

  5A Honeycroft Welwyn Garden City AL8 6HR

  Erection of a single storey rear extension, alterations to opening on side elevation and garden room with covered area following demolition of conservatory

  7 Jul 2026 Householder