13 Stag Green Avenue Hatfield AL9 5EB

1. 3 Feb 2021

   Received by Welwyn Hatfield

2. 7 Jun 2021

   Validated

   Checked as complete and ready for consideration.

3. 13 Aug 2021

   Decision issued: Granted

4. 9 Aug 2026

   Added to PlanIndex

Welwyn Hatfield granted permission on 13 August 2021, 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.

• 4 Fawn Court Hatfield AL9 5DJ

  6/2021/2538/LAWP Submitted 31 Aug 2021 50 yards away

  Certificate of lawfulness for the removal of existing chimney, door and erection of new bi-folding doors

  Granted Lawful development Windows or glazing

• 23 Stag Green Avenue Hatfield AL9 5EB

  6/2022/2819/HOUSE Submitted 13 Dec 2022 100 yards away

  Erection of first floor rear extension and front porch/canopy infill extension with tiled pitched roof to front canopy

  Granted Householder Extension
  Small domestic

• 23 Stag Green Avenue Hatfield AL9 5EB

  6/2022/2671/LAWP Submitted 23 Nov 2022 100 yards away

  Certificate of lawfulness for the erection of a single storey side extension

  Granted Lawful development Extension
  Small domestic

• 29 Stag Green Avenue Hatfield AL9 5EB

  6/2023/0359/LAWP Submitted 16 Feb 2023 100 yards away

  Certificate of Lawful Development for a proposed first floor dormer extension with juliet balcony

  Granted Lawful development Extension Loft or dormer

• 29 Stag Green Avenue Hatfield Hertfordshire AL9 5EB

  6/2023/0358/HOUSE Submitted 15 Feb 2023 100 yards away

  Erection of rear infill extension with alterations to openings, first floor rear extension with insertion of rooflight to existing roof and front infill kitchen extension, under existing canopy

  Granted Householder Extension Loft or dormer
  Domestic

• 43 Stag Green Avenue Hatfield AL9 5EB

  6/2021/1774/HOUSE Submitted 7 Jun 2021 150 yards away

  Erection of a single storey front extension

  Granted Householder Extension
  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