10 The Swallows Welwyn Garden City AL7 1BY

1. 19 Apr 2021

   Received by Welwyn Hatfield

2. 14 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

• 175 Blythway Welwyn Garden City AL7 1DS

  6/2026/0854/EM Submitted 14 May 2026 45m away

  Replace the existing front boundary hedge with a new, well-maintained evergreen hedge to improve the appearance of the property and enhance biodiversity within the street scene.

  Granted

• 175 Blythway Welwyn Garden City AL7 1DS

  6/2024/1536/LAWP Submitted 13 Aug 2024 54m away

  Certificate of lawfulness for new porch, side door removal, new rear bi-folding rear doors, chimney removal, front and rear roof lights and proposed rear dormer

  Granted Lawful development Extension Loft or dormer +1
  Small domestic

• 176 Blythway Welwyn Garden City AL7 1DU

  6/2023/0076/HOUSE Submitted 12 Jan 2023 70m away

  Erection of first floor side extension

  Granted Householder Extension
  Domestic

• 176 Blythway Welwyn Garden City AL7 1DU

  6/2023/0059/EM Submitted 10 Jan 2023 70m away

  Erection of a first floor side extension

  Granted Extension

• 168 Blythway Welwyn Garden City AL7 1DU

  6/2026/1450/EM Submitted 18 Aug 2026 75m away

  90% historically approved · decision due ~13 Oct

  Refurbishment and upgrade of existing rendered, gable wall, with the application of a ‘breathable’ top silicone coat for durability and longevity

  Awaiting decision

• 150 Blythway Welwyn Garden City AL7 1DU

  6/2024/1643/EMT Submitted 28 Aug 2024 86m away

  Ash tree to fell due to ash die back. No replanting due to other existing trees within property. Rear garden ///hope.dare.stone ash tree closest dwelling, green blob on plan

  Granted Trees
  Domestic

• 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