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Planning application

26/01483/NMA

27 Lytton Fields Knebworth Hertfordshire SG3 6BA

Refused North Hertfordshire Non-Material Amendment

Proposal

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).

As published by the council, reference 26/01483/NMA

Timeline

Dates from the published record

  1. 8 Jun 2026

    Received by North Hertfordshire

  2. 23 Jun 2026

    Decision issued: Refused

  3. 24 Jul 2026

    Added to PlanIndex

What refusal means

The process from here

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.

About amendments applications

How this application type works

An amendment application changes a permission that already exists. Non-material amendments cover small adjustments with no wider effect, while minor material amendments, usually made by varying a condition, allow modest design changes without a fresh application. Anything beyond that needs a new permission, so the scope here is deliberately narrow.

More on amendments applications in our guide

Nearby applications

Within 500 metres

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  • 23/00292/FPH Decided

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    8 Feb 2023 296m away Householder
  • 21/01795/FPH Decided

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    Single storey front porch extension, single storey side extension, raise eaves height, conversion and extension of existing detached side elevation garage/store to link to main dwellinghouse

    15 Jun 2021 338m away Householder
  • 26/01579/FPH Awaiting decision

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    15 Jul 2026 353m away Householder
  • 23/00340/TCA Granted

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  • 22/03156/FP Decided

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In North Hertfordshire

  • 26/01732/NMA Decided

    1 Kingswood Avenue Hitchin Hertfordshire SG4 0PB

    1. Amendment to the fenestration to the rear elevation of the rear extension. Omission of one window and widening of double doors, with the addition of glazed side panels. 2. Showing on Side Elevation D-D the new obscure glazed window to the new en-suite. The window was shown on the first floor plan (as non-material amendment to planning permission reference 26/00347/FPH granted on 25.03.2026).

    9 Jul 2026 Amendments
  • 26/01664/NMA Decided

    5 Westbury Farm Close Offley Hertfordshire SG5 3FL

    Addition of flue pipe to serve log burner and re-positioned window (end elevation C) (as Non-Material Amendment to planning permission 25/02069/FPH granted 17.10.2025)

    2 Jul 2026 Amendments
  • 26/01811/NMA Awaiting decision

    Glebe Lodge Pirton Road Holwell Hitchin Hertfordshire SG5 3SS

    Alterations to workshop fenestration (as non-material amendment to planning permission reference 24/00466/FPH granted on 09.04.2024).

    21 Jul 2026 Amendments
  • 26/01057/NMA Decided

    The Old Granary Church End Barley Royston Hertfordshire SG8 8JW

    Remove part of rear roof light and introduce a smaller roof light within a new section of zinc roof (as Non-Material Amendment to application 18/02096/FPH granted 25.10.2018)

    15 Jul 2026 Amendments
  • 26/01784/NMA Awaiting decision

    Land On The South West Side Of Barkway Road Royston Hertfordshire SG8 9DF

    To add a sentence to a number of conditions to allow a minor start on site to implement the planning approval by adding the words: " ...other than the excavation and concreting of the foundations to the pair of garages serving plots 9 and 10 or demolition of the existing workshops in the vicinity of plots 1 and 2 on plan numbers HAN/BAR21/01E and HAN/BAR21/02A ...." to Condition numbers: 3 External Materials, 4 hard and soft landscaping, 8 Biodiversity Management Plan, 13, Foul water/ sewerage, 14 Construction traffic management plan (only a days work for a mini digger and one visit by a grab lorry and one by a cement mixer), 15 Construction management plan (as 14), 19 WSI - attached - is a watching brief possible on this small excavation, 22 No contamination has been found - reports deposited with original application. The site is located on chalk very close to the surface resulting in a shallow dig (as non-material amendment to planning permission reference 21/02957/FP granted on 22.05.2023).

    16 Jul 2026 Amendments