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Planning application

18 Oakfields Road Knebworth Hertfordshire SG3 6NS

Decided North Hertfordshire 24/02139/NMA Non-Material Amendment

Works: Extension Windows or glazing

Decided. The decision notice on the council portal carries the outcome in full, including any conditions.

Proposal

Configuration of rear extension roof amended; workshop footprint reduced with fenestration changes and solar panels added (as Non-Material Amendment to planning permission 23/01869/FPH granted 27.09.2023)

As published by the council, reference 24/02139/NMA

Application record

Reference
24/02139/NMA
Type
Non-Material Amendment
Status
Decided
Decision
Agreed
Received
24 Sep 2024
Validated
24 Sep 2024
Decided
8 Oct 2024
Ward
Knebworth Ward
Parish
Knebworth Parish Council
Decision by
Delegated
Postcode
SG3 6NS

Timeline

Dates from the published record

  1. 24 Sep 2024

    Received by North Hertfordshire

  2. 8 Oct 2024

    Decision issued: Agreed

  3. 9 Aug 2026

    Added to PlanIndex

Documents

Plans, drawings, consultee responses and the officer's report

Documents on file for this application

A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.

Trade members open them from here.

Open the documents

After the decision

The process from here

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.

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

  • 1 Oakfields Road Knebworth Hertfordshire SG3 6NS

    24/02162/DOC Submitted 14 Oct 2024 142m away

    Details reserved by condition 3 (Materials) of planning permission reference no 23/02892/FPH granted 13.02.2024

    Granted Conditions 3 docs

  • 14 Oakfields Avenue Knebworth Hertfordshire SG3 6NP

    24/00952/FPH Submitted 29 Apr 2024 186m away

    Retention of anthracite grey windows and doors

    Decided Householder Windows or glazing 13 docs
    Domestic

  • 20 Oakfields Avenue Knebworth Hertfordshire SG3 6NP

    21/01124/S73 Submitted 9 Apr 2021 212m away

    Two storey front and first floor front extensions, single storey rear extension, side porch canopy. Hip to gable roof extension, 3 rear dormer windows and 1 front dormer window to facilitate enlargement of existing first floor following demolition of existing rear conservatory. Section 73 application: variation of condition 2 of Planning permission 20/02746/FPH granted 18/01/2021 - changes to proposed front central dormer and alterations to proposed fenestration on rear elevation.

    Decided Amendments Extension Loft or dormer +2 5 docs
    Small domestic

  • 12 Stevenage Road Knebworth Hertfordshire SG3 6AW

    26/00838/FPH Submitted 14 Apr 2026 255m away

    Installation of front brick wall including brick piers, coping stones, metal railings, and vehicular access gate following removal of existing timber picket fence and vehicular gate (development already partially commenced).

    Decided Householder 18 docs
    Small domestic

  • 2 Church Gardens Stevenage Road Knebworth Hertfordshire SG3 6AR

    26/01019/TPO Submitted 17 Apr 2026 269m away

    2 x Hornbeam - Reduce by 3.5m height

    Granted Trees 6 docs

  • 1 Church Gardens Stevenage Road Knebworth Hertfordshire SG3 6AR

    21/01514/TPO Submitted 11 May 2021 273m away

    T1 Hornbeam - Felled as dead and dangerous.

    Granted Trees 8 docs

In North Hertfordshire

  • 26/00997/S73 Decided

    Hitchin Cricket Ground Lucas Lane Hitchin Hertfordshire SG5 2JA

    Variation of Condition 25 of Development B of planning permission 15/00192/1 granted 22.03.2016 and varied by condition 8 of 22/03044/S73 granted 22.02.2023. Extension of hours of the All-Weather Pitch on Saturdays from 09.00 - 18.30 hours to 09.00 - 20.00 hours. The permitted hours on Monday-Fridays remain at 09.00-22.00 hours and Sundays and Bank Holidays at 09.00-18.00 hours.

    14 May 2026 Amendments
  • 26/02015/NMA Decided

    17 Whitechurch Gardens Letchworth Garden City Hertfordshire SG6 2AU

    Increase width of rear extension (as Non-Material Amendment to planning permission 26/00677/FPH granted 07.05.2026)

    11 Aug 2026 Amendments
  • 26/01972/NMA Decided

    Land On The South Of Oughtonhead Lane Hitchin Hertfordshire SG5 2NA

    Reduce the number of solar panels shown on the approved plans to two per dwelling across the development, except for Plots 32 and 33 (as Non-Material Amendment to planning permission 23/00563/FP granted 22.04.2025)

    6 Aug 2026 Amendments
  • 26/01889/NMA Awaiting decision

    34 Grays Lane Hitchin Hertfordshire SG5 2HH

    Amendments to approved kitchen window and rear doors and insertion of flat rooflights to rear extension. (as Non-Material Amendment to planning permission 25/02569/FPH granted 27.11.2025)

    29 Jul 2026 Amendments
  • 26/01854/NMA Awaiting decision

    Tussocks The Causeway Therfield Royston Hertfordshire SG8 9PP

    Amendments to plots 1-3 ground floor layout (as Non-Material Amendment to planning permission 24/01371/FP granted 18.02.2025)

    24 Jul 2026 Amendments