17 Brookbridge Lane Datchworth Knebworth Hertfordshire SG3 6SU

1. 8 Jun 2021

   Received by East Hertfordshire

2. 17 Jun 2021

   Validated

   Checked as complete and ready for consideration.

3. 12 Aug 2021

   Decision issued: Refuse

4. 19 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

• 11, Brookbridge Lane, Datchworth, Knebworth, SG3 6SU

  3/07/0631/FP Submitted 23 Mar 2007 54m away

  Single storey side and rear extensions and front bay window.

  Granted Full applications Extension Windows or glazing 2 docs
  Small domestic

• 1 Brookbridge Lane Datchworth Knebworth Hertfordshire SG3 6SU

  X/22/0347/CND Submitted 16 Aug 2022 137m away

  Discharge of condition 4 (archaeology) for planning approval 3/20/0225/HH

  Decided Conditions 4 docs

• 59 Nutcroft Datchworth Hertfordshire SG3 6TQ

  3/26/1072/HH Submitted 30 Jul 2026 164m away

  84% historically approved · decision due ~15 Oct

  Construction of two storey side and rear extension

  Awaiting decision Householder Extension 14 docs
  Domestic

• 1, Hawkins Hall Lane, Datchworth, Knebworth, SG3 6TF

  3/07/0776/FP Submitted 17 Apr 2007 188m away

  Replacement dwelling

  Refused Full applications 2 docs
  Domestic

• 1, Hawkins Hall Lane, Datchworth, Herts, SG3 6TF

  3/08/0373/OP Submitted 26 Feb 2008 188m away

  Proposed 6 one bedroom apartments with car parking & ancillary works

  Refused Outline New dwelling

• 54, Nutcroft, Datchworth, Herts, SG3 6TG

  3/07/1143/FP Submitted 1 Jun 2007 194m away

  First floor rear extension

  Granted Full applications Extension 1 doc

• 3/26/1185/HH Awaiting decision

  10 Broad Green Wood Bayford Hertfordshire SG13 8PS

  Construction of single storey detached outbuilding for use ancillary to main dwellinghouse with creation of patio area

  25 Aug 2026 Householder
• 3/26/1182/HH Awaiting decision

  113 North Road Hertford Hertfordshire SG14 2BU

  Construction of porch and alterations to rear doors

  24 Aug 2026 Householder
• 3/26/1181/HH Awaiting decision

  72 Stanstead Road Hertford Hertfordshire SG13 7HY

  Construction of front porch, single storey rear extension and fenestration changes

  24 Aug 2026 Householder
• 3/26/1175/HH Awaiting decision

  High Hall Farm Mill Lane Anstey Hertfordshire SG9 0BL

  Conversion of outbuilding to create an ancillary bedroom, home office and a gym/play room

  21 Aug 2026 Householder
• 3/26/1164/HH Awaiting decision

  130 Stortford Hall Park Bishops Stortford Hertfordshire CM23 5AP

  Conversion of garage to habitable room

  20 Aug 2026 Householder