31 New Road Knebworth SG3 6LA

1. 29 Jun 2021

   Received by Welwyn Hatfield

2. 15 Jul 2021

   Validated

   Checked as complete and ready for consideration.

3. 27 Sep 2021

   Decision issued: Granted

4. 22 Sep 2026

   Added to PlanIndex

Welwyn Hatfield granted permission on 27 September 2021, 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.

• 26 New Road Knebworth SG3 6JX

  6/2023/0203/HOUSE Submitted 27 Jan 2023 100 yards away

  Erection of ground floor infill extension and modifications to existing rear extension

  Granted Householder Extension
  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

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

  25/01358/ADJ Submitted 21 May 2025 100 yards away

  91% historically approved · decision due ~16 Jul

  Outline planning application for the erection of up to 150 residential dwellings with the provision of affordable housing, public open space, landscaping, sustainable drainage system (SuDS) and vehicular access point. All matters reserved except for means of access. NORTH HERTS DISTRICT COUNCIL: ADJACENT AUTHORITY : CONSULTEE ONLY.

  Awaiting decision Outline 1 doc

• 55 Garden Road Woolmer Green SG3 6JZ

  6/2026/1038/HOUSE Submitted 15 Jun 2026 150 yards away

  Erection of a part two/single storey side and rear extension and new front porch following the demolition of existing single storey side extension and porch

  Granted Householder Extension Demolition
  Small domestic

• 50 Carvers Croft Woolmer Green Hertfordshire SG3 6LX

  6/2023/0296/LAWP Submitted 7 Feb 2023 150 yards away

  Certificate of lawfulness for the erection of a single storey rear extension

  Granted Lawful development Extension
  Small domestic

• 59 Garden Road Knebworth Woolmer Green SG3 6JZ

  6/2021/2459/LAWP Submitted 23 Aug 2021 150 yards away

  Certificate of lawfulness for the erection of side porch following the demolition of existing porch

  Granted Lawful development Extension Demolition
  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