23 Mardley Wood Welwyn AL6 0UY

1. 31 Mar 2023

   Received by Welwyn Hatfield

2. 26 May 2023

   Decision issued: Granted

3. 25 Sep 2026

   Added to PlanIndex

Welwyn Hatfield granted permission on 26 May 2023, 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.

• 15 Mardley Wood Welwyn AL6 0UY

  6/2021/2017/LAWP Submitted 2 Jul 2021 50 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

• 33 Mardley Wood Welwyn AL6 0UY

  6/2023/1091/TPO Submitted 23 May 2023 100 yards away

  2x Silver Birches - remove the dead trees and offshoot as they are threat to the property and road users. Another species will be planted to replace the dead trees.

  Granted Trees

• 3 Heathlands Welwyn AL6 0UU

  6/2026/0560/HOUSE Submitted 26 Mar 2026 100 yards away

  Erection of rear and side single-storey extension with conversion of garage to habitable accommodation

  Granted Householder Extension
  Small domestic

• 3 Heathlands Welwyn AL6 0UU

  6/2023/0478/HOUSE Submitted 2 Mar 2023 100 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 200 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

• 18 Briary Wood Lane Welwyn AL6 0TF

  6/2026/1376/HOUSE Submitted 4 Aug 2026 200 yards away

  Erection of a single storey ground floor extension & part two storey rear, raising the roof and alterations to facilitate loft conversion to include new crown roof with front & rear dormers

  Granted Householder Extension Loft or dormer
  Small domestic

• 6/2026/1408/HOUSE Granted

  Wytmead Essendon Hill Essendon Hatfield AL9 6AW

  Reinstatement of the previously truncated chimney

  Received 10 Aug, published by the council 31 Aug 2026 Householder
• 6/2026/1170/HOUSE Granted

  6 Highfields Cuffley Potters Bar EN6 4EL

  Conversion of garage into study room with alterations to the front elevation, repositioning of lower ground floor entrance hall, erection of two storey infill side extension with internal alterations, replacement of existing front and side building brickwork with K-Render finish, removal of chimney and installation of 2 rooflights

  Received 6 Jul, published by the council 30 Jul 2026 Householder
• 6/2026/1177/HOUSE Granted

  Red Lodge High Road Essendon Hatfield AL9 6HU

  Erection of two single-storey side extensions, detached garage with barn-hipped roof and photovoltaic panels, relocated garden room and associated works to hardstanding and site layout.

  Received 7 Jul, published by the council 9 Aug 2026 Householder
• 6/2026/1376/HOUSE Granted

  18 Briary Wood Lane Welwyn AL6 0TF

  Erection of a single storey ground floor extension & part two storey rear, raising the roof and alterations to facilitate loft conversion to include new crown roof with front & rear dormers

  Received 4 Aug, published by the council 22 Aug 2026 Householder
• 6/2026/1392/HOUSE Granted

  1 Little Wade Welwyn Garden City AL7 4LE

  Erection of a single storey rear extension

  Received 6 Aug, published by the council 15 Aug 2026 Householder