96 Birchwood Avenue Hatfield AL10 0PS

1. 26 Mar 2026

   Received by Welwyn Hatfield

2. 19 May 2026

   Decision issued: Granted

3. 9 Aug 2026

   Added to PlanIndex

Welwyn Hatfield granted permission on 19 May 2026, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.

Householder applications cover work to an existing house and its garden, such as extensions, lofts and outbuildings, and cannot create a separate dwelling or change what the building is used for. More in our guide to planning application types.

• 82 Birchwood Avenue Hatfield AL10 0PS

  6/2026/0710/HOUSE Submitted 21 Apr 2026 69m away

  Erection of single storey rear extension

  Granted Householder Extension
  Small domestic

• 33 Birchwood Avenue Hatfield AL10 0PR

  6/2021/1839/LAWP Submitted 15 Jun 2021 71m away

  Certificate of lawfulness for a loft conversion with rear dormer

  Granted Lawful development Loft or dormer

• 36 Birchwood Close Hatfield AL10 0PP

  6/2023/0318/PN8 Submitted 9 Feb 2023 145m away

  Prior approval for the erection of a single storey rear extension measuring 5m in depth, 2.56m in height, 2.30m to the eaves with rooflights and alterations to existing openings to side elevation, following demolition of existing conservatory and outbuildings

  Granted Prior approval Extension Loft or dormer +1
  Small domestic

• 65 Heathcote Avenue Hatfield AL10 0RQ

  6/2023/0410/HOUSE Submitted 22 Feb 2023 151m away

  Erection of single storey rear extension, front porch extension, installation of one front rooflight and a rear dormer to facilitate the conversion of loft to habitable space

  Refused Householder Extension Loft or dormer
  Small domestic

• 29 Heathcote Avenue Hatfield AL10 0RQ

  6/2026/0632/PN8 Submitted 9 Apr 2026 157m away

  Prior approval for a single storey rear extension which will measure 4m in depth, 3m to the eaves and the maximum height of 2.69m

  Granted Prior approval Extension
  Small domestic

• 100 Crawford Road Hatfield AL10 0PE

  6/2026/0729/PN8 Submitted 24 Apr 2026 169m away

  Prior approval for the erection of a single storey rear extension, measuring 6m in depth, 3m in height and 2.90m to the eaves

  Granted Prior approval Extension
  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