18 Worcester Road Hatfield AL10 0DX

1. 24 Mar 2026

   Received by Welwyn Hatfield

2. 5 Jun 2026

   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

• 18 Worcester Road Hatfield AL10 0DX

  6/2021/1827/LAWP Submitted 14 Jun 2021 0m away

  Certificate of lawfulness for erection of rear outbuilding

  Granted Lawful development

• 18 Worcester Road Hatfield AL10 0DX

  6/2021/1829/HOUSE Submitted 14 Jun 2021 0m away

  Demolition of rear conservatory and erection of single storey rear extension and front lean to porch.

  Granted Householder Extension Demolition
  Small domestic

• 24 Worcester Road Hatfield AL10 0DX

  6/2022/2638/HOUSE Submitted 21 Nov 2022 24m away

  Erection of single storey front/side extension

  Granted Householder Extension
  Small domestic

• 15 Worcester Road Hatfield AL10 0DU

  6/2026/1006/LAWP Submitted 8 Jun 2026 64m away

  Certificate of lawfulness for the erection of a single-storey rear extension, removal of the chimney and associated internal alterations

  Granted Lawful development Extension
  Small domestic

• 7 Ely Close Hatfield AL10 0DW

  6/2026/1189/LAWE Submitted 8 Jul 2026 129m away

  81% historically approved · decision due ~2 Sep

  Certificate of lawfulness for the existing use of the property as a HMO (C4)

  Awaiting decision Lawful development

• 15 Ely Close Hatfield AL10 0DW

  6/2026/0419/FULL Submitted 6 Mar 2026 148m away

  Retrospective change of use from a dwellinghouse (use class C3) to a 4 bedroom HMO (use class C4) and installation of a bike shed

  Granted Full applications
  Small 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