Knebworth Estate Knebworth Park Old Knebworth Knebworth Hertfordshire SG3 6PY

1. 28 Jan 2021

   Received by North Hertfordshire

2. 27 May 2021

   Decision issued: Conditional Permission

3. 9 Aug 2026

   Added to PlanIndex

North Hertfordshire granted permission on 27 May 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 full application seeks permission for a complete, detailed proposal in one go, with siting, design, access and landscaping all fixed at this stage. More in our guide to planning application types.

• Park Gate House Park Lane Old Knebworth Knebworth Hertfordshire SG3 6QD

  26/02439/EC Submitted 29 Sep 2026 300 yards away

  The Electronic Communications Code (Conditions and restrictions) Regulations 2003 (as amended) Regulation 5 Notice of Intention to Install Fixed Line Broadband Apparatus: install cabling to exterior wall.

  Granted

• The Meadow Land Off Park Lane Old Knebworth Hertfordshire

  21/02339/TCA Submitted 3 Aug 2021 350 yards away

  Removal of dead and diseased branches as per 'Tree Works'

  Granted Trees 4 docs

• Manor Gardens Cottage Park Lane Old Knebworth Knebworth Hertfordshire SG3 6QB

  24/01232/LBC Submitted 20 Aug 2024 400 yards away

  Replace 4no. timber windows (2no. front dormer windows, 1no. rear dormer window and 1no. first floor window on side elevation) with 12mm slimline double-glazed timber windows (as amended by drawing of Window 4 received by email on 17/12/2024).

  Granted Heritage and listed buildings Loft or dormer Windows or glazing 8 docs

• Knebworth House Knebworth Park Old Knebworth Knebworth Hertfordshire SG3 6PY

  23/00363/LBC Submitted 14 Feb 2023 400 yards away

  Retention of repairs and stabilisation of turrets T9 & T10 and merlons and replacement stringcourse in stone. Retention of works to dismantle and reconstruct chimney CH31.

  Granted Heritage and listed buildings 8 docs

• The Green Park Lane Old Knebworth Hertfordshire

  21/02313/TCA Submitted 2 Aug 2021 400 yards away

  Removal of dead and diseased branches as per 'Tree Works'

  Granted Trees 4 docs

• Crom Cottage Park Lane Old Knebworth Knebworth Hertfordshire SG3 6QA

  23/00789/LBC Submitted 31 Mar 2023 450 yards away

  Internal alterations together with replacement window frame (Item 9) and window lintels (Item 21) like-for-like.

  Granted Heritage and listed buildings Windows or glazing 11 docs

• 26/00298/FP Decided

  Hobbs Close Garage London Road St Ippolyts Hitchin Hertfordshire SG4 7NJ

  Erection of one detached 4-bed dwelling following demolition of existing garage building as revision of previously approved planning permission 21/00298/FP granted 26.03.2021.

  Received 19 Mar, published by the council 20 Oct 2026 Full applications
• 26/01022/FP Awaiting decision

  Service Station Bedford Road Hitchin Hertfordshire SG5 2UG

  Installation of parcel lockers following removal of existing locker and installation of paved pathway.

  Received 19 Oct, published by the council 24 Jul 2026 Full applications
• 26/02400/FP Awaiting decision

  Greenbanks London Road St Ippolyts Hitchin Hertfordshire SG4 7NJ

  Erection of four dwellings including cycle storage, parking, hard and soft landscaping, and alterations to access layout following demolition of existing dwelling and other buildings.

  Received 16 Oct, published by the council 20 Oct 2026 Full applications
• 26/02392/FP Awaiting decision

  Land South Of 14 High Street Graveley Hertfordshire SG4 7LB

  Erection of one detached self-build dwelling including parking, cycle store, bin store, Air Source Heat Pump, alterations to ground levels and soft and hard landscaping.

  Received 16 Oct, published by the council 19 Oct 2026 Full applications
• 26/01937/FP Decided

  Hitchin Town Hall Brand Street Hitchin Hertfordshire SG5 1HX

  Decarbonisation works including provision of secondary glazing to existing windows, the provision of insulation to the roof void above the main hall, replacement of mechanical plant including the removal of gas boilers and the installation of Photovoltaic (PV) panels and Air Source Heat Pump (ASHP)

  Received 18 Aug, published by the council 28 Aug 2026 Full applications