11 Dellfield Road Hatfield AL10 8EW

1. 15 Apr 2021

   Received by Welwyn Hatfield

2. 10 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

• 19 Briars Lane Hatfield AL10 8ES

  6/2024/1544/LAWP Submitted 13 Aug 2024 103m away

  Certificate of lawfulness for a loft conversion with rear dormer and roof lights to front existing roof elevation

  Granted Lawful development Loft or dormer

• Council owned flats: Feather Dell Hatfield AL10 8DD 20-42 Feather Dell Hatfield AL10 8DD

  6/2026/1275/FULL Submitted 20 Jul 2026 113m away

  81% historically approved · decision due ~14 Sep

  Installation of wall insulation (materials to match existing to all of the external wall), replacement windows and doors to double/triple glazed units and thermal doors, balcony insulation system to be added to balcony slab and new railings (to match existing) to be installed

  Awaiting decision Full applications Windows or glazing

• 38 Dellfield Road Hatfield AL10 8EW

  6/2026/0417/HOUSE Submitted 6 Mar 2026 135m away

  Erection of a single storey rear extension and part side wrap around and front porch extension

  Granted Householder Extension
  Small domestic

• Hatfield Swim Centre Lemsford Road Hatfield AL10 0RU

  6/2021/1787/FULL Submitted 9 Jun 2021 169m away

  Installation of 2 air source heat pumps and associated air to water heat pumps within an acoustic enclosure

  Granted Full applications 1 doc

• 2 Feather Dell Hatfield AL10 8DD

  6/2024/1916/HOUSE Submitted 7 Oct 2024 180m away

  Erection of single storey front extension and conversion of existing garage with alterations to the fenestration

  Granted Householder Extension Windows or glazing
  Small domestic

• 46a Curzon Point The Common Hatfield AL10 0LU

  6/2025/2062/FULL Submitted 26 Sep 2025 195m away

  Change of use to allow for private residential use (HMO) at purpose built student accommodation

  Refused Full applications

• 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