24 Garden Avenue Hatfield AL10 8LN

1. 7 Apr 2026

   Received by Welwyn Hatfield

2. 15 May 2026

   Validated

   Checked as complete and ready for consideration.

3. 14 Jul 2026

   Decision issued: Refused

4. 24 Jul 2026

   Added to PlanIndex

Welwyn Hatfield refused this application for the reasons on the decision notice; only the applicant can appeal, and refused schemes often return in revised form. 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.

• 169 Bishops Rise Hatfield AL10 9EP

  6/2026/0932/LAWP Submitted 27 May 2026 0.1 miles away

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

  Granted Lawful development Extension
  Small domestic

• 29 Garden Avenue Hatfield AL10 8LL

  6/2021/1033/HOUSE Submitted 29 Mar 2021 0.1 miles away

  Erection of single and two storey rear extension

  Granted Householder Extension
  Domestic

• 248 Bishops Rise Hatfield AL10 9QT

  6/2021/1705/PN8 Submitted 27 May 2021 0.1 miles away

  Prior approval for the erection of a single storey rear extension measuring 4.5m in depth, 2.86m in height and 2.86m to the eaves.

  Granted Prior approval Extension
  Small domestic

• 45 Garden Avenue Hatfield AL10 8LL

  6/2026/0848/PN8 Submitted 13 May 2026 0.1 miles away

  Prior approval for the erection of a single storey rear extension measuring 5.5m in depth, 3.25m in height and 3m to the eaves following the demolition of existing conservatory

  Granted Prior approval Extension Demolition
  Small domestic

• Bishops Rise Hatfield AL10 9QT

  6/2023/0528/PN15 Submitted 8 Mar 2023 0.1 miles away

  Proposed telecommunications installation: Proposed 15.0m Phase 8 Monopole and associated ancillary works

  Granted Prior approval

• 41 Cherry Way Hatfield AL10 8LF

  6/2024/1728/PN8 Submitted 9 Sep 2024 0.2 miles away

  Prior approval for the erection of a single storey rear extension measuring 4m deep, 2.8m eaves height, 2.95m max height

  Granted Prior approval Extension
  Small domestic

• 6/2026/1198/HOUSE Granted

  9 Mardley Hill Welwyn AL6 0UE

  Erection of single storey front, side and rear extension, raising the existing roof and formation of rear dormer. Alterations to the fenestration, including, installation of new windows and doors and external rendering and cladding, following the demolition of garage and porch

  Received 10 Jul, published by the council 24 Jul 2026 Householder
• 6/2026/1257/HOUSE Granted

  21 The Swallows Welwyn Garden City AL7 1BX

  Garage conversion with alterations to openings to front and rear elevations

  Received 17 Jul, published by the council 1 Aug 2026 Householder
• 6/2026/1293/HOUSE Granted

  33 Claves Crescent Welwyn Garden City AL7 1WN

  Erection of a single storey rear conservatory

  Received 22 Jul, published by the council 1 Aug 2026 Householder
• 6/2026/1202/HOUSE Granted

  40 Cecil Crescent Hatfield AL10 0HG

  Erection of single storey rear extension

  Received 10 Jul, published by the council 9 Aug 2026 Householder
• 6/2026/1228/HOUSE Granted

  109 Mount Way Welwyn Garden City AL7 4LA

  Erection of single storey front extension

  Received 13 Jul, published by the council 9 Aug 2026 Householder