10 Sunnyfield Hatfield AL9 5DX

1. 8 Jul 2024

   Received by Welwyn Hatfield

2. 16 Aug 2024

   Validated

   Checked as complete and ready for consideration.

3. 11 Oct 2024

   Decision issued: Granted

4. 9 Aug 2026

   Added to PlanIndex

Welwyn Hatfield granted permission on 11 October 2024, 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.

A full application seeks permission for a complete, detailed proposal in one go, with siting, design, access and landscaping all fixed at this stage. More in our guide to planning application types.

• 28 Pleasant Rise Hatfield AL9 5DU

  6/2026/1559/LAWP Submitted 8 Sep 2026 50 yards away

  75% historically approved · decision due ~3 Nov

  Certificate of lawfulness for construction of a new detached, single-storey garden room/summerhouse within an existing rear garden

  Awaiting decision Lawful development
  Small domestic

• 22 Pleasant Rise Hatfield AL9 5DU

  6/2024/1837/LAWP Submitted 24 Sep 2024 50 yards away

  Certificate of lawfulness for the installation of a rear dormer window

  Granted Lawful development Loft or dormer Windows or glazing

• 15 Greenfield Hatfield AL9 5HW

  6/2021/0765/HOUSE Submitted 9 Mar 2021 100 yards away

  Erection of a two storey front and side extension

  Granted Householder Extension
  Domestic

• 13 Greenfield Hatfield AL9 5HW

  6/2026/0368/HOUSE Submitted 27 Feb 2026 100 yards away

  Erection of single storey rear extension, first floor front and side extension, single storey front infill extension and alteration to fenestration

  Granted Householder Extension Windows or glazing
  Small domestic

• 13 Greenfield Hatfield AL9 5HW

  6/2026/1014/HOUSE Submitted 9 Jun 2026 100 yards away

  Erection of two-storey front extension

  Refused Householder Extension
  Domestic

• 3 Greenfield Hatfield AL9 5HW

  6/2021/1817/HOUSE Submitted 11 Jun 2021 150 yards away

  Single storey rear extension, following demolition of existing conservatory, removal of chimney stack and erection of a first floor side extension with 2 x terrace areas. Conversion of existing garage and alterations to fenestration, plus replacement of existing cladding to front and rear first floor elevations to K render.

  Refused Householder Extension Demolition +1
  Small domestic

• 6/2026/1052/FULL Granted

  Unit 3 Woodside Lane Hatfield AL9 6DE

  Retention of an extension to the existing building and the erection of a rear extension following demolition of existing buildings (part retrospective)

  Received 17 Jun, published by the council 24 Jul 2026 Full applications
• 6/2026/1264/FULL Granted

  53 Brookmans Avenue Brookmans Park AL9 7QG

  Erection of dwelling with boundary wall and gates following demolition of existing property

  Received 17 Jul, published by the council 15 Aug 2026 Full applications
• 6/2026/1337/FULL Granted

  Royal Veterinary College Hawkshead Lane North Mymms AL9 7TA

  Relocation of the Transfusion Medicine Vet Pod and associated parking, landscaping and associated works

  Received 30 Jul, published by the council 9 Aug 2026 Full applications
• 6/2026/1689/MAJ Awaiting decision

  Howlands House Howlands Welwyn Garden City AL7 4QJ

  Erection of a single 3 and 4-storey building comprising 44 temporary accommodation homes, staff office and laundry facilities, children's play space, cycle and vehicular parking, associated servicing, plant enclosure, substation, landscaping and external works.

  Received 25 Sep, published by the council 1 Oct 2026 Full applications
• 6/2026/0952/FULL Granted

  18 Fallowfield Welwyn Garden City AL7 1EE

  Retrospective application for change of use from amenity land to residential land to form part hardstanding and part garden land at the front of the property and installation of a drop kerb

  Received 1 Jun, published by the council 24 Jul 2026 Full applications