14 Deards End Lane Knebworth Hertfordshire SG3 6NL

1. 2 Apr 2026

   Received by North Hertfordshire

2. 26 May 2026

   Decision issued: Refused

3. 9 Aug 2026

   Added to PlanIndex

The council refused this application for the reasons set out on the decision notice, which the council portal holds in full. Only the applicant can appeal a refusal; the time limit runs from the decision date and is shorter for householder schemes.

Refusal does not prevent a fresh attempt. Applicants often address the reasons for refusal and resubmit, so a refused scheme is not necessarily the end of proposals for the site.

Householder applications cover work to an existing house and its garden: extensions, loft and garage conversions, porches, outbuildings and similar alterations within the boundary of the home. They cannot be used to create a separate dwelling or change what the building is used for. Councils aim to decide them within eight weeks, and immediate neighbours are usually notified and given a chance to comment.

More on householder applications in our guide

• 16 Deards End Lane Knebworth Hertfordshire SG3 6NL

  26/00995/TCA Submitted 15 Apr 2026 47m 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

• 12 Deards End Lane Knebworth Hertfordshire SG3 6NL

  20/02668/FPH Submitted 17 Nov 2020 58m away

  Part single storey part two storey side extensions, insertion of gable window to existing side gable end, erection of single storey attached front garage and ground and first floor rear extensions following demolition of existing front attached garage and rear conservatory

  Withdrawn Householder Extension Demolition +1 24 docs
  Small domestic

• 12 Deards End Lane Knebworth Hertfordshire SG3 6NL

  21/01475/FPH Submitted 17 May 2021 58m away

  Two storey side extension to one side of the property, and a single storey to the other side, part first floor and single storey rear extension, insertion of no.1 dormers to existing front elevation roofslope and erection of attached front elevation garage following demolition of existing front elevation attached garage and rear elevation conservatory

  Refused Householder Extension Loft or dormer +1 26 docs
  Small domestic

• 14 Deards End Lane Knebworth Hertfordshire SG3 6NL

  26/02081/FPH Submitted 19 Aug 2026 69m away

  90% historically approved · decision due ~14 Oct

  Erection of two storey side extension following demolition of existing ground floor side extension

  Awaiting decision Extension Demolition

• Land At Old Knebworth Lane Knebworth Herts SG3 6NL

  26/00447/SCR Submitted 10 Jun 2026 69m away

  92% historically approved · decision due ~5 Aug

  Ref: 18089 We write on behalf of our client Xela Energy Ltd to formally request an Environmental Impact Assessment (EIA) Screening Opinion from Stevenage Borough Council under Regulation 6 of the Town and Country Planning Regulations 2017

  Awaiting decision

• 25a Deards End Lane Knebworth Hertfordshire SG3 6NL

  26/02051/TCA Submitted 17 Aug 2026 69m away

  99% historically approved · decision due ~12 Oct

  2x Fir - Reduce in height by 3m removing the over hanging branches.

  Awaiting decision Trees

• 26/00371/FPH Decided

  12 Dale Close Hitchin Hertfordshire SG4 9AS

  Replacement raised hipped roof and insertion of front rooflight and two rear dormers to facilitate loft conversion into habitable accommodation. Two storey and part single storey side and rear extensions and front porch following demolition of existing side and rear extensions. Alterations to fenestration to include insertion of first floor side window. External cladding and Installation of rear raised patio and steps.

  10 Feb 2026 Householder
• 26/00904/FPH Decided

  4 Leete Place Royston Hertfordshire SG8 5DX

  Single storey side and rear extension, open-sided front porch, replacement roof including installation of rooflights, removal of chimney and alterations to existing fenestration following demolition of existing store. Installation of vehicular access via dropped kerb and vehicle crossover including hardstanding to provide No.2 parking spaces.

  22 Apr 2026 Householder
• 26/01380/FPH Decided

  15 Ninesprings Way Hitchin Hertfordshire SG4 9NQ

  Part two storey and part single storey side extension and single storey rear extension following demolition of existing side element and rear conservatory. Front porch, alterations to fenestration and hard and soft landscaping works. External cladding and rendering.

  5 Jun 2026 Householder
• 26/01414/FPH Decided

  80 Willian Road Hitchin Hertfordshire SG4 0LT

  Replacement raised roof to facilitate additional accommodation at first floor level. Two storey rear extension following removal of existing shed. Alterations to fenestration and external render. Installation of front hardstanding and provision of two parking spaces.

  1 Jun 2026 Householder
• 26/01062/FPH Decided

  47 Common Rise Hitchin Hertfordshire SG4 0HN

  Two storey and part single storey rear extension following demolition of existing rear element.

  22 May 2026 Householder