3 Heathlands Welwyn AL6 0UU

This site has had 2 applications since 2023: 1 approved, 1 refused.

• 6/2023/0478/HOUSE Refused

  3 Heathlands Welwyn AL6 0UU

  Erection of two storey side extension

  Decided 27 Apr 2023 Householder

1. 26 Mar 2026

   Received by Welwyn Hatfield

2. 23 Jun 2026

   Decision issued: Granted

3. 24 Jul 2026

   Added to PlanIndex

Welwyn Hatfield granted permission on 23 June 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.

• 3 Heathlands Welwyn AL6 0UU

  6/2023/0478/HOUSE Submitted 2 Mar 2023 50 yards away

  Erection of two storey side extension

  Refused Householder Extension
  Domestic

• 14 Mardley Wood Welwyn AL6 0UX

  6/2021/1443/TPO Submitted 7 May 2021 100 yards away

  Crown lift 3 x Oak trees (T1-3) and 2 x Larch trees (T4, T6), T7)by 3m and remove dead wood, fell 2 x Larch trees (T5, T9) to ground level, reduce 1 x Larch tree (T8) by 20% covered by TPO

  Granted Trees

• 15 Mardley Wood Welwyn AL6 0UY

  6/2021/2017/LAWP Submitted 2 Jul 2021 100 yards away

  Erection of a single storey front extension and a single storey rear extension, following the demolition of existing front porch canopy and rear conservatory, plus alterations to fenestration to existing front and side elevations.

  Refused Lawful development Extension Demolition +1
  Small domestic

• 12 Mardley Hill Welwyn AL6 0TN

  6/2021/0943/TPO Submitted 23 Mar 2021 150 yards away

  T1 - re-pollard 3-4m T2 - fell Beech tree to ground level T3 - oak tree 3-4m crown reduction T4 - Beech tree 5-6m crown reduction

  Refused Trees

• 12 Mardley Hill Welwyn AL6 0TN

  6/2026/1205/TPO Submitted 10 Jul 2026 150 yards away

  TPO 24 T3 - 1 x Beech tree to reduce overhanging lateral branches by approximately 2m. Reduce lateral overhang to no 16 as tree is too close to boundary and excessive overhang is leaving bird poo on kids play equipment

  Granted Trees

• 12 Mardley Hill Welwyn AL6 0TN

  6/2021/2127/TPO Submitted 14 Jul 2021 150 yards away

  T1 - oak - crown reduce 1-2m and deadwood T2 - oak fell to ground level T3 - beech - crown reduce 4-5m T4 - beech - crown reduce 4-5m

  Granted Trees

• 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