18a Deards End Lane Knebworth Hertfordshire SG3 6NL

1. 23 Oct 2019

   Received by North Hertfordshire

2. 8 Nov 2019

   Decision issued: No Objection

3. 28 Aug 2026

   Added to PlanIndex

North Hertfordshire granted permission on 8 November 2019, 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.

Applications for works to trees cover protected trees: consent under a tree preservation order, or six weeks notice for trees in a conservation area. More in our guide to planning application types.

• 18 Deards End Lane Knebworth Hertfordshire SG3 6NL

  23/00142/LDCP Submitted 20 Jan 2023 50 yards away

  Installation of 2 No. rear roof lights to existing roof slope

  Granted Lawful development Loft or dormer 7 docs

• 18 Deards End Lane Knebworth Hertfordshire SG3 6NL

  24/02871/TCA Submitted 18 Dec 2024 50 yards away

  T1: Walnut - Reduce by 30%. T2 : Ash - Reduce by 30%

  Granted Trees 3 docs

• 18 Deards End Lane Knebworth Hertfordshire SG3 6NL

  26/01053/PNSL Submitted 1 Apr 2026 50 yards away

  Installation of 9 solar panels on flat roof below higher pitched roof

  Granted Prior approval 8 docs

• 16 Deards End Lane Knebworth Hertfordshire SG3 6NL

  26/00995/TCA Submitted 15 Apr 2026 100 yards away

  T1: Cedar - Crown reduction by approx 7m, crown lift / raise canopy by approx 2m. Reduce lateral spread by approx 2m. Prune back to provide approx 0.5m clearance from the BT telephone line where branches are currently encroaching. T2: Thuja - Crown reduction by approx 5m. Crown lift / raise canopy by approx 2m. Reduce lateral spread by approx 2m.

  Granted Trees 4 docs

• 21a Deards End Lane Knebworth Hertfordshire SG3 6NL

  24/01664/FPH Submitted 29 Jul 2024 150 yards away

  Replace existing timber windows with triple glazed dark grey aluminium windows

  Granted Householder Windows or glazing
  Domestic

• 17 Deards End Lane Knebworth Hertfordshire SG3 6NL

  23/00873/FPH Submitted 24 Apr 2023 150 yards away

  Single storey rear extension, insertion of three rooflights to existing rear roofslope following removal of existing dormer window and erection of single storey side extension to facilitate double garage/utility/workshop following demolition of existing conservatory/garages/side extension. Alterations to fenestration

  Granted Householder Extension Loft or dormer +2
  Small domestic

• 26/02249/TPO Decided

  Caldicott Court Harrison Close Hitchin Hertfordshire SG4 9SL

  T1: Common Walnut - Crown reduction 30%. T3: Beech - Cut back to boundary. T4: Pine - Cut back to boundary.

  8 Sep 2026 Trees
• 26/02250/TCA Granted

  Caldicott Court Harrison Close Hitchin Hertfordshire SG4 9SL

  T2: Sycamore - Cut back to boundary. T5: 10x Pines - Crown reduction up to 30%.

  8 Sep 2026 Trees
• 26/02671/TCA Awaiting decision

  24 Wymondley Road Hitchin Hertfordshire SG4 9PN

  T003: Crab Apple - Remove. T007: Robina - Remove Ivy from Ground level to approx 1.5m. T024: Sycamore - reduce, after climbing inspection, to historically reduced level at 6m. T012: Sycamore - Reduce crown by up to 3.5m to suitable growth points, reduce sides to balance. T023: Lime - Reduce back to established old points at 6m.

  Received 20 Oct, published by the council 21 Oct 2026 Trees
• 26/02638/TCA Awaiting decision

  The Conifers Gipsy Lane Knebworth Hertfordshire SG3 6DJ

  T1: Eucalyptus - Fell

  Received 19 Oct, published by the council 20 Oct 2026 Trees
• 26/02677/TCA Awaiting decision

  Apartment 1 42 Bancroft Hitchin Hertfordshire SG5 1LA

  Pear - Remove.

  Received 19 Oct, published by the council 20 Oct 2026 Trees