9A London Road Knebworth SG3 6LG

1. 29 Apr 2021

   Received by Welwyn Hatfield

2. 4 May 2021

   Validated

   Checked as complete and ready for consideration.

3. 29 Jun 2021

   Decision issued: Granted

4. 9 Aug 2026

   Added to PlanIndex

Welwyn Hatfield granted permission on 29 June 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.

• 18A London Road Woolmer Green SG3 6JP

  6/2022/2658/HOUSE Submitted 22 Nov 2022 100 yards away

  Erection of first floor side extension, single story rear extension and conversion of car port into habitable space

  Refused Householder Extension
  Domestic

• 2 Mardleybury Court Woolmer Green Knebworth SG3 6LP

  6/2019/2855/COND Submitted 12 Nov 2019 100 yards away

  Submission of details pursuant to condition 6 (arboricultural method statement) on planning permission 6/2019/0909/FULL

  Granted Conditions

• 22B London Road Woolmer Green SG3 6JP

  6/2024/1996/PN33 Submitted 16 Oct 2024 100 yards away

  Change of use from commercial, business and service (Use Class E) to dwellinghouse (Use Class C3) to form one dwelling

  Granted
  Domestic

• 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

• 4 Evergreen Close Woolmer Green SG3 6JN

  6/2026/1391/TPO Submitted 6 Aug 2026 150 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

• 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

• 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