3 Longlands Road Welwyn Garden City AL7 3QD

1. 3 Sep 2026

   Received by Welwyn Hatfield

2. 22 Sep 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 29 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 householder applications in a median of 60 days. More in our guide to how long planning decisions take.

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.

• 95 Mill Green Road Welwyn Garden City AL7 3XA

  6/2023/0212/HOUSE Submitted 30 Jan 2023 50 yards away

  Erection of a single storey side extension with front steps

  Withdrawn Householder Extension
  Small domestic

• 95 Mill Green Road Welwyn Garden City AL7 3XA

  6/2023/0250/EM Submitted 1 Feb 2023 50 yards away

  Erection of a single storey side extension with front steps

  Withdrawn Extension
  Small domestic

• 79 Mill Green Road Welwyn Garden City AL7 3UX

  6/2025/2358/HOUSE Submitted 10 Nov 2025 100 yards away

  85% historically approved · decision due ~6 Jan

  Erection of a two storey side extension, single storey rear extension and loft conversion with sun tunnels and rear rooflight, installation of replacement front door

  Awaiting decision Householder Extension Loft or dormer
  Small domestic

• 79 Mill Green Road Welwyn Garden City AL7 3UX

  6/2025/2294/EM Submitted 29 Oct 2025 100 yards away

  90% historically approved · decision due ~29 Dec

  Erection of a two storey side/single storey rear extension and loft conversion (resubmission of refused application 6/2025/0950/EM)

  Awaiting decision Extension Loft or dormer
  Small domestic

• 110 Mill Green Road Welwyn Garden City AL7 3XE

  6/2026/0345/EMT Submitted 24 Feb 2026 100 yards away

  3 x Leyland Cypress to reduce by around 6ft in height

  Granted Trees

• 110 Mill Green Road Welwyn Garden City AL7 3XE

  6/2021/1203/EMH Submitted 13 Apr 2021 100 yards away

  Extension of driveway to enable two cars to park

  Granted Householder Extension
  Domestic

• 6/2026/1316/HOUSE Granted

  178 Knella Road Welwyn Garden City AL7 3NN

  Erection of part single and part two storey rear extension with alterations to openings on rear elevation

  Received 27 Jul, published by the council 22 Aug 2026 Householder
• 6/2026/1252/HOUSE Granted

  31 Brockswood Lane Welwyn Garden City AL8 7BE

  Erection of part single storey part two storey rear extension, garage conversion and installation of air conditioning unit mounted at ground floor on the rear elevation

  Received 16 Jul, published by the council 9 Aug 2026 Householder
• 6/2026/0112/HOUSE Granted

  54 Tolmers Road Cuffley Potters Bar EN6 4JF

  Erection of part two storey and part single storey front and side extensions. Erection of first floor rear extension. Alterations to the roof, including front and rear dormers and rooflights

  Received 26 Jan, published by the council 24 Jul 2026 Householder
• 6/2026/1620/HOUSE Awaiting decision

  68 Tolmers Road Cuffley Potters Bar EN6 4JY

  Erection of front boundary dwarf wall, railings and gated entrances and battened fencing to left and right boundaries to front garden alongside hardstanding to frontage

  Received 17 Sep, published by the council 22 Sep 2026 Householder
• 6/2026/1308/HOUSE Granted

  122 The Commons Welwyn Garden City AL7 4SB

  Proposed conversion of existing garage to habitable room alterations to the roof, erection of a glazed veranda and detached gazebo

  Received 27 Jul, published by the council 9 Aug 2026 Householder