4 Old Dairy Yard Welwyn Garden City AL7 4BY

1. 23 Feb 2026

   Received by Welwyn Hatfield

2. 13 May 2026

   Decision issued: Granted

3. 9 Aug 2026

   Added to PlanIndex

Welwyn Hatfield granted permission on 13 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.

• 3 Old Dairy Yard Welwyn Garden City AL7 4BY

  6/2024/0933/HOUSE Submitted 20 May 2024 50 yards away

  Installation of air source heat pump

  Granted Householder
  Domestic

• 57 Hollybush Lane Welwyn Garden City AL7 4JH

  6/2021/2201/HOUSE Submitted 21 Jul 2021 150 yards away

  Erection of single storey rear extension

  Refused Householder Extension
  Small domestic

• 14 Four Acres Welwyn Garden City AL7 4NW

  6/2020/1680/LAWP Submitted 13 Jul 2020 200 yards away

  Certificate of Lawfulness for erection of summer house in rear garden

  Refused Lawful development

• 50 Great Ley Welwyn Garden City AL7 4TL

  6/2021/1938/LAWP Submitted 25 Jun 2021 200 yards away

  Certificate of lawfulness for erection of single storey rear extension.

  Refused Lawful development Extension
  Small domestic

• 43 Great Ley Welwyn Garden City AL7 4TJ

  6/2026/1218/LAWP Submitted 13 Jul 2026 250 yards away

  Certificate of lawfulness for rear dormer roof extension to form a loft conversion

  Granted Lawful development Extension Loft or dormer

• 128 Mount Way Welwyn Garden City AL7 4JX

  6/2022/2425/EM Submitted 19 Oct 2022 300 yards away

  Erection of a single storey rear & side extension

  Granted Extension
  Small domestic

• 6/2026/1408/HOUSE Granted

  Wytmead Essendon Hill Essendon Hatfield AL9 6AW

  Reinstatement of the previously truncated chimney

  Received 10 Aug, published by the council 31 Aug 2026 Householder
• 6/2026/1170/HOUSE Granted

  6 Highfields Cuffley Potters Bar EN6 4EL

  Conversion of garage into study room with alterations to the front elevation, repositioning of lower ground floor entrance hall, erection of two storey infill side extension with internal alterations, replacement of existing front and side building brickwork with K-Render finish, removal of chimney and installation of 2 rooflights

  Received 6 Jul, published by the council 30 Jul 2026 Householder
• 6/2026/1177/HOUSE Granted

  Red Lodge High Road Essendon Hatfield AL9 6HU

  Erection of two single-storey side extensions, detached garage with barn-hipped roof and photovoltaic panels, relocated garden room and associated works to hardstanding and site layout.

  Received 7 Jul, published by the council 9 Aug 2026 Householder
• 6/2026/1376/HOUSE Granted

  18 Briary Wood Lane Welwyn AL6 0TF

  Erection of a single storey ground floor extension & part two storey rear, raising the roof and alterations to facilitate loft conversion to include new crown roof with front & rear dormers

  Received 4 Aug, published by the council 22 Aug 2026 Householder
• 6/2026/1392/HOUSE Granted

  1 Little Wade Welwyn Garden City AL7 4LE

  Erection of a single storey rear extension

  Received 6 Aug, published by the council 15 Aug 2026 Householder