159 Park Lane Old Knebworth Knebworth Hertfordshire SG3 6PR

1. 10 Sep 2026

   Received by North Hertfordshire

2. 10 Sep 2026

   Added to PlanIndex

3. 16 Oct 2026

   Decision issued

4. 16 Oct 2026

   Status changed to Decided

   Previously Registered.

North Hertfordshire has decided this application; the outcome above is the register's own wording and the decision notice on the council portal carries the detail. More in our guide to what happens after a planning decision.

The published feed does not state which type of application this is; the register entry on North Hertfordshire's portal will say. Our guide explains the common types.

• 195 Park Lane Old Knebworth Knebworth Hertfordshire SG3 6PR

  22/03197/FPH Submitted 12 Dec 2022 50 yards away

  Part single storey part two storey rear extension. Ground floor side door.

  Granted Householder Extension
  Small domestic

• 207 Park Lane Old Knebworth Knebworth Hertfordshire SG3 6PR

  21/01307/LDCP Submitted 22 Apr 2021 100 yards away

  Hipped roof to a gabled roof and insertion of dormer to existing rear elevation roofslope

  Granted Lawful development Loft or dormer 5 docs

• 190 Park Lane Old Knebworth Knebworth Hertfordshire SG3 6PS

  22/01738/FPH Submitted 17 Aug 2022 150 yards away

  Single storey rear extension to facilitate 1-bed annexe accommodation following demolition of existing outbuilding

  Refused Householder Extension Demolition 10 docs
  Small domestic

• 190 Park Lane Old Knebworth Knebworth Hertfordshire SG3 6PS

  22/02172/LBC Submitted 17 Aug 2022 150 yards away

  Single storey rear extension to facilitate 1-bed annexe accommodation following demolition of existing outbuilding

  Refused Heritage and listed buildings Extension Demolition 11 docs
  Small domestic

• 148 And 150 Park Lane Knebworth SG3

  02/00932/1HH Submitted 12 Jun 2002 200 yards away

  Single storey front extensions to provide separate porches

  Granted Householder Extension
  Small domestic

• Larch House Old Knebworth Lane Knebworth Hertfordshire SG3 6FS

  26/02332/TCA Submitted 16 Sep 2026 300 yards away

  R1: Robinia - Remove.

  Granted Trees