21 Gun Road Gardens Knebworth Hertfordshire SG3 6ED

1. 15 Nov 2022

   Received by North Hertfordshire

2. 9 Jan 2023

   Decision issued: Conditional Permission

3. 9 Aug 2026

   Added to PlanIndex

The council has decided this application; the published outcome sits in the record above and the decision notice on the council portal carries the detail, including any conditions.

If permission was granted, work must normally begin within three years of the decision. If it was refused, the applicant can appeal within the statutory time limit or submit a revised scheme.

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

• Land At The Rear Of 1 Stockens Green Knebworth Hertfordshire SG3 6DG

  22/03181/DOC Submitted 15 Dec 2022 93m away

  Condition 3-Tree Works Method Statement (as discharge of condition relating to planning permission 21/03068/FP granted 21.02.2022)

  Granted Conditions Trees

• 5 Stockens Green Knebworth Hertfordshire SG3 6DG

  21/02051/TCA Submitted 5 Jul 2021 119m away

  Weeping Willow - Reduce by approx 1/4

  Granted Trees 4 docs

• 6 Gun Meadow Avenue Knebworth Hertfordshire SG3 6BS

  26/02001/FPH Submitted 1 Sep 2026 133m away

  90% historically approved · decision due ~27 Oct

  Single storey infil side extension to link existing garage to dwelling. Insertion of dormer windows to existing rear and side roofslopes. Alterations to fenestration.

  Awaiting decision Extension Loft or dormer +1
  Small domestic

• 7a Stockens Green Knebworth Hertfordshire SG3 6DG

  21/01195/TCA Submitted 14 Apr 2021 136m away

  Norway Maple - Reduce by 2.5m height & width. Silver Birch - Fell to ground level. Cherry - Reduce by 3m height & 1.5m width

  Granted Trees 10 docs

• 15 Wadnall Way Knebworth Hertfordshire SG3 6DU

  23/00014/DOC Submitted 10 Jan 2023 144m away

  Condition 3 - landscape details (as discharge of condition relating to planning permission 22/02656/S73 granted 19.07.2021)

  Granted Conditions 4 docs

• 15 Wadnall Way Knebworth Hertfordshire SG3 6DU

  21/01748/S73 Submitted 4 Jun 2021 144m away

  Erection of two 2-bed dwellings with associated accesses and two parking spaces (Section 73 application variation of Condition 2 of planning permission 20/01987/FP granted 15.12.2020 - Relocate the parking bays from the side of 15 Wadnall Way to the front of the new dwelling).

  Decided Amendments New dwelling 10 docs
  Domestic

• 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