178 Knella Road Welwyn Garden City AL7 3NN

1. 27 Jul 2026

   Received by Welwyn Hatfield

2. 28 Jul 2026

   Validated

   Checked as complete and ready for consideration.

3. 22 Aug 2026

   Added to PlanIndex

4. 7 Sep 2026

   Status changed to Under Consideration

   Previously Under Consultation.

5. 21 Sep 2026

   Decision issued: Granted

Welwyn Hatfield granted permission on 21 September 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.

• 165 Knella Road Welwyn Garden City AL7 3NT

  6/2024/1545/PN8 Submitted 13 Aug 2024 100 yards away

  Prior approval for the erection of a single storey rear infill extension measuring 6.00m in depth, 3.69m in height and 2.46m to the eaves

  Granted Prior approval Extension
  Small domestic

• 213 Knella Road Welwyn Garden City AL7 3NT

  6/2021/1876/HOUSE Submitted 18 Jun 2021 200 yards away

  Erection of a part two-storey and part single storey extension to rear

  Granted Householder Extension
  Small domestic

• Land at rear of 2 Woodfield Road Welwyn Garden City AL7 1JH

  6/2026/0248/FULL Submitted 12 Feb 2026 200 yards away

  Erection of a new building to house a Class 7 MOT testing station in connection with Burrowfields Autos

  Granted Full applications

• Isabel Hospice Head Office 99 99 Bridge Road East Welwyn Garden City AL7 1GL

  6/2024/1861/TPO Submitted 27 Sep 2024 200 yards away

  T2 Lime tree dead, fell to ground level. TPO187 G1 and TPO 904 (2023) G1

  Granted Trees

• Isabel Hospice Head Office 99 Bridge Road East Welwyn Garden City AL7 1GL

  6/2024/2115/COND Submitted 1 Nov 2024 200 yards away

  Submission of details pursuant to Condition 1 (Trees), Condition 2 (Landscaping), Condition 7 (Tactile paving crossing) Condition 8 (Travel Plan), Condition 10 (Cycle parking), Condition 11 (EV Charging) on planning permission 6/2024/0525/FULL

  Granted Conditions Trees

• 125 Knella Road Welwyn Garden City AL7 3NA

  6/2026/0597/HOUSE Submitted 7 Apr 2026 200 yards away

  Erection of a single storey side extension

  Granted Householder Extension
  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