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Planning application

143 St Leonards Road Windsor

Refused Windsor and Maidenhead 25/02218/NMA Non-material Amendment

Works: Extension Windows or glazing Small domestic

Read from the description, not a valuation. How we read the register

Relates to 22/03319/CLAMA

Refused. Only the applicant can appeal, within the statutory time limit, and a revised scheme can be submitted instead.

Proposal

Non material amendments to planning permission 22/03319/CLAMA for the removal of 2no. single storey rear extensions, addition of 1no. side infill extension and alterations to fenestration.

As published by the council, reference 25/02218/NMA

Application record

Reference
25/02218/NMA
Type
Non-material Amendment
Status
Decided
Decision
Refuse
Received
28 Aug 2025
Validated
10 Oct 2025
Decided
31 Oct 2025
Ward
Old Windsor
Parish
Windsor Unparished
Decision by
Delegated

Timeline

Dates from the published record

  1. 28 Aug 2025

    Received by Windsor and Maidenhead

  2. 10 Oct 2025

    Validated

    Checked as complete and ready for consideration.

  3. 31 Oct 2025

    Decision issued: Refuse

  4. 11 Aug 2026

    Added to PlanIndex

Cases linked to this one on the register

  • 22/03319/CLAMA Granted

    Chevron Air Holidays 143 St Leonards Road Windsor SL4 3DW

    Prior approval to change the use from offices (Class E) to create x2 semi-detached dwellings (Class C3).

    Decided 6 Feb 2023 Prior approval

Documents

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

4 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

What this refusal means

Windsor and Maidenhead refused this application for the reasons on the decision notice; only the applicant can appeal, and refused schemes often return in revised form. More in our guide to what happens after a planning decision.

About amendment applications

An amendment application makes limited changes to a permission that already exists; anything beyond modest adjustment needs a fresh application. More in our guide to planning application types.

Nearby applications

Within 500 metres

  • Chevron Air Holidays 143 St Leonards Road Windsor SL4 3DW

    22/03319/CLAMA Submitted 13 Dec 2022 0m away

    Prior approval to change the use from offices (Class E) to create x2 semi-detached dwellings (Class C3).

    Granted Prior approval 10 docs

  • 21 Victor Road Windsor SL4 3JS

    26/01448/FULL Submitted 11 Jun 2026 39m away

    Single storey rear/side extension.

    Granted Full applications Extension 13 docs
    Small domestic

  • 21 Victor Road Windsor SL4 3JS

    21/02389/FULL Submitted 3 Aug 2021 40m away

    x2 front rooflights and x1 rear L-shaped dormer.

    Granted Full applications Loft or dormer 9 docs

  • 15 Victor Road Windsor SL4 3JS

    21/03380/FULL Submitted 15 Nov 2021 49m away

    Single storey side/rear extension with 2 No. rooflights, rear dormer to main loft with 1 No. front facing rooflight (retrospective), proposed single storey rear extension with 3 No. rooflights, dormer to rear and 1 No. front facing rooflight to main roof.

    Granted Full applications Extension Loft or dormer 9 docs
    Small domestic

  • 11 Victor Road Windsor SL4 3JS

    21/01951/CPD Submitted 24 Jun 2021 58m away

    Certificate of lawfulness to determine whether the proposed interior renovation/alterations and loft conversion with rear dormer is lawful.

    Granted Lawful development Loft or dormer 9 docs

  • 9 Victor Road Windsor SL4 3JS

    22/00963/FULL Submitted 8 Apr 2022 60m away

    x1 rooflight to the South elevation and x1 dormer to the North elevation.

    Granted Full applications Loft or dormer 10 docs

In Windsor and Maidenhead

  • 26/01996/NMA Granted

    Leigh Cottage Church Road Sunningdale Ascot SL5 0NJ

    Non material amendments to planning permission 25/02661/FULL for 1no. additional window to west elevation.

    12 Aug 2026 Amendments
  • 26/01388/VAR Granted

    21 Springfield Park Maidenhead SL6 2YN

    Variation (under Section 73) of Condition 3 to substitute those plans approved under 25/03049/FULL for a Garage conversion, single storey front porch, single storey rear/side extension and alterations to fenestration with amended plans.

    4 Jun 2026 Amendments
  • 26/01811/NMA Granted

    Grove Park Industrial Estate Waltham Road White Waltham Maidenhead SL6 3LW

    Non material amendments to planning permission 25/01083/VAR for changes to the proposed elevations and materials to plots 10-11, 15-16, 18-19, 24-25, 26-27, 28-29, 39-41, 42-44 and 45-47 and 48-51.

    24 Jul 2026 Amendments
  • 25/00668/VAR Granted

    59 Norden Road Maidenhead SL6 4AZ

    Variation (under Section 73) of Condition 15 to substitute those plans approved under 23/00279/FULL for 4 no. flats with associated parking, cycle and refuse storage and new access following the demolition of the existing dwelling with amended plans.

    17 Mar 2025 Amendments
  • 26/01154/VAR Granted

    106 - 114 High Street Maidenhead

    Variation (under Section 73) of planning permission 20/03508/OUT as amended by 26/00842/NMA to allow for the alteration of the List of approved drawings condition (3), as well as documents associated with condition 9 (Surface water drainage scheme), 12 (Air quality report) 16 (Retail units/use class) and 19 (Acoustic measures).

    8 May 2026 Amendments