26 New Road Knebworth SG3 6JX

1. 27 Jan 2023

   Received by Welwyn Hatfield

2. 24 Mar 2023

   Decision issued: Granted

3. 24 Jul 2026

   Added to PlanIndex

Welwyn Hatfield granted permission on 24 March 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.

• 7 Garden Close Knebworth SG3 6JF

  6/2021/1723/LAWP Submitted 1 Jun 2021 50 yards away

  Certificate of lawfulness for a single storey rear extension

  Granted Lawful development Extension 1 doc
  Small domestic

• 31 New Road Knebworth SG3 6LA

  6/2021/1981/HOUSE Submitted 29 Jun 2021 100 yards away

  Demolishing existing conservatory and construction of a single storey kitchen / utility extension.

  Granted Householder Extension
  Small domestic

• 4 Evergreen Close Woolmer Green SG3 6JN

  6/2026/1391/TPO Submitted 6 Aug 2026 100 yards away

  97% historically approved · decision due ~1 Oct

  Crown reduction of a Silver Birch tree by up to 20% (approximately 2 - 3 metres) to reduce branch spread and weight. Work is required to manage size, prevent encroachment and maintain tree health Reduce overhanging branches by approximately 2 metres to prevent encroachment over the driveway and reduce pigeon fouling on vehicles The tree is close to the house and has grown too large for the garden so the works are required to manage its size and maintain its health TPO 105 T3

  Awaiting decision Trees

• 5 Evergreen Close Woolmer Green SG3 6JN

  6/2026/0880/TPO Submitted 19 May 2026 100 yards away

  Retrospective 5 day notice: Fell 1 dead silver birch TPO 105

  Granted Trees

• 9 New Road Woolmer Green SG3 6JX

  6/2022/2860/HOUSE Submitted 19 Dec 2022 100 yards away

  Erection of single storey rear infill extension with roof lantern, raised patio and replacement of existing windows following the demolition of an existing conservatory

  Granted Householder Extension Demolition +1
  Small domestic

• Land Off London Road Woolmer Green Knebworth Hertfordshire SG3 6JZ

  25/01841/ADJ Submitted 21 Jul 2025 100 yards away

  91% historically approved · decision due ~15 Sep

  Approval of reserved matters (layout, scale, appearance and landscaping) for residential development pursuant to condition 1 (reserved matters), condition 2 (submission of reserved matters), condition 3 (reserved matters layout), condition 4 (landscaped buffer), condition 6 (detailed engineering details), condition 9 (Biodiversity), condition 10 (Health Impact Assessment), condition 11 (written scheme of investigation), condition 13 (surface water) and condition 25 (noise assessment) of outline planning permission (ref: 6/2023/2552/OUTLINE) comprising 150 dwellings, public open space, car parking ,and associated infrastructure works. NORTH HERTS DISTRICT COUNCIL : ADJACENT AUTHORITY : CONSULTEE ONLY

  Awaiting decision Outline New dwelling 2 docs
  Major scheme

• 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