27 Lytton Fields Knebworth Hertfordshire SG3 6BA

1. 3 Aug 2026

   Received by North Hertfordshire

2. 9 Aug 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 28 September 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   North Hertfordshire took a median of 51 days over the applications it decided in the last year.

This application is with North Hertfordshire for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.

The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.

This page mirrors an entry on the statutory planning register that North Hertfordshire is required to keep. The published feed for this record does not state which type of application it is, which is common for older entries and for some council systems; the register entry on the council portal will say, alongside the case officer and any consultation dates.

Every planning application follows the same broad path: submission, validation, publicity, then a decision by officers or committee. Our guide to planning application types explains the common types and what each can approve.

• 27 Lytton Fields Knebworth Hertfordshire SG3 6BA

  26/01483/NMA Submitted 8 Jun 2026 0m away

  90% historically approved · decision due ~3 Aug

  No raising of roof required, flat roof dormers (as existing design), Juliette balconies to rear dormer, extension of porch roof and no single storey rear extension as non-material amendment to planning permission reference 25/03244/FPH granted on 12.02.2026).

  Decided Amendments Extension Loft or dormer
  Small domestic

• 11 Oak Tree Gardens Knebworth Hertfordshire SG3 6EQ

  24/01834/LDCP Submitted 16 Aug 2024 49m away

  Erection of single storey rear conservatory

  Granted Lawful development Extension 7 docs
  Small domestic

• 2 Oak Tree Gardens Knebworth Hertfordshire SG3 6EQ

  22/03025/FPH Submitted 23 Nov 2022 88m away

  Part conversion of garage to provide home office including replacement door opening on side elevation

  Decided Householder 11 docs
  Domestic

• Caxton Villa 14 Park Lane Knebworth Hertfordshire SG3 6PF

  23/00009/FPH Submitted 6 Jan 2023 147m away

  Installation of additional vehicular crossover.

  Decided Householder 8 docs
  Domestic

• 25 Deards Wood Knebworth Hertfordshire SG3 6PG

  22/03259/FPH Submitted 22 Dec 2022 164m away

  Two storey side and rear extension, raise existing roof ridge height, replace existing windows and replace existing dormer windows following demolition of existing conservatory. Extend the existing driveway within the boundary and creation of vehicular crossover (as variation of previously approved Planning Permission 21/02945/FPH granted 26.01.2022)

  Decided Householder Extension Loft or dormer +3 14 docs
  Small domestic

• 28 Stockens Dell Knebworth Hertfordshire SG3 6BG

  23/00041/FPH Submitted 6 Jan 2023 214m away

  First floor front infill extension, single storey front extension and open sided front porch following demolition of existing front extension

  Decided Householder Extension Demolition
  Small domestic