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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
Refused As published: 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.

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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 0.3 miles

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

    22/03319/CLAMA Submitted 13 Dec 2022 50 yards 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 50 yards 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 50 yards 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 50 yards 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 50 yards 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 50 yards 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

  • 26/00814/VAR Granted

    Land West of Switchback Road North And North of Nightingale Lane Maidenhead

    Variation (under Section 73a) of planning permission 21/02963/FULL to vary the wording of Condition 8 (Drainage), 9 (Vehicles), 10 (Landscaping) and 11 (Painting) without complying with one month time limit.

    Received 27 Mar, published by the council 25 Jul 2026 Amendments
  • 26/01411/VAR Granted

    Whiteladies Park Prince Albert Drive Ascot SL5 8AQ

    Variation (under Section 73) of Condition 11 to substitute those plans approved under 25/03016/FULL for the Redevelopment of existing dwelling, including demolition and reconstruction of western extension, the construction of an eastern extension including an indoor swimming pool, and creation of a basement area with amended plans.

    Received 8 Jun, published by the council 25 Jul 2026 Amendments
  • 26/01792/VAR Granted

    Silver Birches St Marys Road Ascot SL5 9JE

    Variation (under Section 73) of Condition 9 (Approved Plans) to substitute those plans approved under 26/00205/FULL for a raised ridge, 2 no. front dormers and 1 no. rear dormer, 1no. side bay window, new chimney, single storey side/rear extension, alterations to fenestration and hardstanding, following demolition of existing elements with amended plans.

    Received 22 Jul, published by the council 31 Jul 2026 Amendments
  • 26/02420/NMA Awaiting decision

    Development At King Street And Queen Street And Broadway Maidenhead

    Non material amendments to planning permission 25/00066/VAR as per covering letter.

    Received 2 Oct, published by the council 9 Oct 2026 Amendments
  • 26/02152/NMA Granted

    Land Bounded By Ascot Fire Station Station Hill And West of Hermitage Parade And South of High Street Ascot SL5 7HF

    Non material amendments to planning permission 25/01050/FULL to amend the wording of Condition 8 (Bat Mitigation Scheme).

    Received 1 Sep, published by the council 8 Sep 2026 Amendments