The Willows Marshmoor Lane Welham Green Hatfield AL9 7HT

This site has had 2 applications since 2026: 1 approved, 1 refused.

• 6/2026/0433/HOUSE Refused

  The Willows Marshmoor Lane Welham Green Hatfield AL9 7HT

  Extension of existing residential dwelling, along with the demolition and re-construction of existing carport and store

  Decided 6 May 2026 Householder

1. 26 May 2026

   Received by Welwyn Hatfield

2. 27 May 2026

   Validated

   Checked as complete and ready for consideration.

3. 21 Jul 2026

   Decision issued: Granted

4. 24 Jul 2026

   Added to PlanIndex

Welwyn Hatfield granted permission on 21 July 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.

• The Willows Marshmoor Lane Welham Green Hatfield AL9 7HT

  6/2026/0433/HOUSE Submitted 10 Mar 2026 50 yards away

  Extension of existing residential dwelling, along with the demolition and re-construction of existing carport and store

  Refused Householder Extension Demolition 2 docs
  Domestic

• Railway Cottage 1-2 Marshmoor Lane Welham Green Hatfield AL9 7HT

  6/2023/0039/LAWP Submitted 9 Jan 2023 100 yards away

  Certificate of lawfulness for a single storey rear extension

  Granted Lawful development Extension
  Small domestic

• Millwards House Great North Road Hatfield AL9 5SD

  6/2022/2492/FULL Submitted 31 Oct 2022 250 yards away

  Retention of metal fence to front of property

  Refused Full applications
  Small domestic

• Alloy Sales Ltd Travellers Lane Welham Green Hatfield AL9 7HF

  6/2024/1412/VAR Submitted 24 Jul 2024 250 yards away

  Removal of condition 3 (use of premises) on planning permission S6/1981/0553

  Granted Amendments

• 93 Holloways Lane Welham Green Hatfield AL9 7NU

  6/2026/0425/HOUSE Submitted 9 Mar 2026 300 yards away

  Erection of single storey rear extension following demolition of existing detached garage

  Granted Householder Extension Demolition
  Small domestic

• 11 Nash Close Welham Green Hatfield AL9 7NN

  6/2021/0984/FULL Submitted 25 Mar 2021 350 yards away

  Insertion of new front door into side elevation and internal alterations to create 2 self contained units providing 1 x 2 bedroom 3 person flat and 1 x 1 bedroom 1 person flat.

  Refused Full applications

• 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