7 Garden Close Knebworth SG3 6JF

1. 1 Jun 2021

   Received by Welwyn Hatfield

2. 22 Jul 2021

   Decision issued: Granted

3. 24 Jul 2026

   Added to PlanIndex

Welwyn Hatfield granted permission on 22 July 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.

A lawful development certificate is a legal determination that existing or proposed works do not need planning permission; the merits of the scheme are not considered. More in our guide to planning application types.

• 5 Evergreen Close Woolmer Green SG3 6JN

  6/2026/0880/TPO Submitted 19 May 2026 30m away

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

  Granted Trees

• 4 Evergreen Close Woolmer Green SG3 6JN

  6/2026/1391/TPO Submitted 6 Aug 2026 39m 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

• 26 New Road Knebworth SG3 6JX

  6/2023/0203/HOUSE Submitted 27 Jan 2023 63m 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 95m away

  93% 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 95m away

  93% 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

• 43 London Road Woolmer Green Hertfordshire SG3 6JE

  6/2022/2619/HOUSE Submitted 16 Nov 2022 120m away

  Erection of a part single storey, part two storey rear extension with Juliet balcony and rooflights, alterations to porch and existing openings, insertion of new windows in flank wall, removal of chimney, and alteration of external materials from dashed render with smooth painted render, following the demolition of the existing rear conservatory

  Refused Householder Extension Loft or dormer +2
  Small domestic

• 6/2026/1370/LAWP Granted

  17-17A Mill Lane Welwyn AL6 9EU

  Certificate of lawfulness for the change of use of offices to 3 x 2 bedroom flats

  Received 3 Aug, published by the council 15 Aug 2026 Lawful development
• 6/2026/1218/LAWP Granted

  43 Great Ley Welwyn Garden City AL7 4TJ

  Certificate of lawfulness for rear dormer roof extension to form a loft conversion

  Received 13 Jul, published by the council 9 Aug 2026 Lawful development
• 6/2026/1250/LAWP Granted

  40 Dellsome Lane Welham Green Hatfield AL9 7ND

  Certificate of lawfulness for Class A - Larger single storey rear extension (previously subject to prior approval application ref: 6/25/1851/PN8), Class B - Roof extension/hip to gable conversion, Class C - Other alterations to roof

  Received 16 Jul, published by the council 9 Aug 2026 Lawful development
• 6/2026/1210/LAWE Refused

  9 Flamingo Close Hatfield AL10 9LU

  Certificate of lawfulness for the existing use of the property as a HMO (Use Class C4) in continuous use for over 10 years

  Received 10 Jul, published by the council 9 Aug 2026 Lawful development
• 6/2026/0735/LAWE Refused

  1 Northaw Place Coopers Lane Northaw Potters Bar EN6 4NQ

  Certificate of lawfulness for the existing use of the land as residential garden land ancillary to the dwellinghouse continuously since 2012

  Received 27 Apr, published by the council 24 Jul 2026 Lawful development