45 Great Dell Welwyn Garden City AL8 7HP

This site has had 4 applications since 2024: 1 approved, 1 refused.

• 6/2026/0621/FULL Refused

  45 Great Dell Welwyn Garden City AL8 7HP

  Change of use of amenity land to driveway area with part hedge removal, part two storey rear extension, roof lantern to existing kitchen roof and alterations to openings to rear

  Decided 17 Jun 2026 Full applications
• 6/2026/0619/EM Awaiting decision

  45 Great Dell Welwyn Garden City AL8 7HP

  Part two storey rear extension, roof lantern to existing kitchen roof and alterations to openings to rear

  Submitted 8 Apr 2026
• 6/2024/1851/EM Granted

  45 Great Dell Welwyn Garden City AL8 7HP

  Insertion of roof light and corner bi-fold doors to existing extension

  Decided 18 Nov 2024

1. 13 Aug 2026

   Received by Welwyn Hatfield

2. 31 Aug 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 8 October 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   Welwyn Hatfield took a median of 58 days over the applications it decided in the last year.

This application is with Welwyn Hatfield for determination, against a statutory target of eight weeks. Over the last year Welwyn Hatfield decided full applications in a median of 102 days. More in our guide to how long planning decisions take.

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.

• 45 Great Dell Welwyn Garden City AL8 7HP

  6/2026/0621/FULL Submitted 9 Apr 2026 50 yards away

  Change of use of amenity land to driveway area with part hedge removal, part two storey rear extension, roof lantern to existing kitchen roof and alterations to openings to rear

  Refused Full applications Extension Windows or glazing

• 45 Great Dell Welwyn Garden City AL8 7HP

  6/2026/0619/EM Submitted 8 Apr 2026 50 yards away

  90% historically approved · decision due ~1 Jul

  Part two storey rear extension, roof lantern to existing kitchen roof and alterations to openings to rear

  Awaiting decision Extension Windows or glazing

• 45 Great Dell Welwyn Garden City AL8 7HP

  6/2024/1851/EM Submitted 26 Sep 2024 50 yards away

  Insertion of roof light and corner bi-fold doors to existing extension

  Granted Extension Loft or dormer +1

• 43 Great Dell Welwyn Garden City AL8 7HP

  6/2024/1619/HOUSE Submitted 23 Aug 2024 50 yards away

  First floor side extension, two storey rear extension and conversion of existing garage, alterations to openings on existing rear elevation with insertion of roof light to existing roof and formation of hardstanding to front

  Granted Householder Extension Loft or dormer
  Domestic

• 43 Great Dell Welwyn Garden City AL8 7HP

  6/2024/1604/EM Submitted 21 Aug 2024 50 yards away

  First floor side extension, two storey front extension and conversion of existing garage, alterations to openings on existing rear elevation with insertion of roof light to existing roof and formation of hardstanding to front

  Granted Extension Loft or dormer

• 15 Brooms Close Welwyn Garden City AL8 7JA

  6/2026/0452/EM Submitted 12 Mar 2026 50 yards away

  Replacement shed 8ftx16ft

  Granted
  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