6 Blackthorn Road Welwyn Garden City AL7 3JS

1. 12 Aug 2024

   Received by Welwyn Hatfield

2. 18 Sep 2024

   Validated

   Checked as complete and ready for consideration.

3. 13 Nov 2024

   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.

• 89 Wellcroft Road Welwyn Garden City AL7 3JX

  6/2024/1529/HOUSE Submitted 12 Aug 2024 100 yards away

  Erection of single storey front extension

  Granted Householder Extension
  Small domestic

• 110 Wellcroft Road Welwyn Garden City AL7 3JU

  6/2021/1528/HOUSE Submitted 13 May 2021 100 yards away

  Render existing wall to East facing extension side wall and new brick garden wall.

  Granted Householder Extension
  Domestic

• 111 Wellcroft Road Welwyn Garden City AL7 3JX

  6/2026/0797/HOUSE Submitted 6 May 2026 150 yards away

  Part two storey and part single storey rear extensions, alterations to openings and erection of detached garden room

  Granted Householder Extension
  Small domestic

• 55 Lowerfield Welwyn Garden City AL7 3JT

  6/2021/1560/HOUSE Submitted 17 May 2021 200 yards away

  Erection of first floor side extension and insertion of window to existing rear elevation at first floor level.

  Granted Householder Extension Windows or glazing
  Domestic

• 58 Wellcroft Road Welwyn Garden City AL7 3JY

  6/2021/1240/LAWP Submitted 16 Apr 2021 200 yards away

  Certificate of lawfulness for addition of front porch

  Granted Lawful development Extension
  Small domestic

• 54 Lowerfield Welwyn Garden City AL7 3JT

  6/2024/1967/LAWP Submitted 14 Oct 2024 200 yards away

  Certificate of lawfulness for a front porch

  Granted Lawful development 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