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Planning application

21/01172/FULL

6 St Marks Place Windsor SL4 3BG

Granted Windsor and Maidenhead Full

Proposal

Single storey rear extension and 3 No. front rooflights and 2 No. rear dormers to facilitate a loft conversion

As published by the council, reference 21/01172/FULL

Timeline

Dates from the published record

  1. 14 Apr 2021

    Received by Windsor and Maidenhead

  2. 23 Jul 2021

    Decision issued: Application Permitted

  3. 27 Jul 2026

    Added to PlanIndex

What a grant of permission means

The process from here

Permission has been granted, usually subject to conditions listed on the decision notice, some of which must be discharged before work starts. The decision notice on the council portal sets out exactly what was approved.

Work must normally begin within three years of the decision or the permission lapses. Neighbours cannot appeal a grant; challenging one means judicial review of how the decision was made, within tight time limits.

About full applications applications

How this application type works

A full application seeks permission for a complete, detailed proposal in one go: siting, design, access and landscaping are all fixed at this stage. It is the standard route for new buildings, conversions and changes of use. The statutory target is eight weeks for smaller schemes and thirteen weeks for major development, though complex cases often take longer by agreement.

More on full applications applications in our guide

Nearby applications

Within 500 metres

  • 23/00365/FULL Granted

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    Change of use from C1 (Guest House) to C3 (Residential) to create 1 no. residential dwelling with 2no. rear dormers.

    8 Feb 2023 32m away Full applications
  • 26/00873/FULL Granted

    17 Queens Road Windsor SL4 3BQ

    Single storey side/rear extension

    7 Apr 2026 42m away Full applications
  • 23/00646/VAR Withdrawn

    17 Queens Road Windsor SL4 3BQ

    Variation (under Section 73) of planning permission 20/00908/FULL to vary the wording of Condition 1 (Commencement - Full Application 3 Years).

    14 Mar 2023 42m away Amendments
  • 22/02828/LBC Granted

    Admiral House St Leonards Road Windsor SL4 3BL

    Consent for the replacement of existing end of life HVAC air conditioning system with a new VRF air conditioning system to be located internally and condensers at roof level, installation of internal VAM units, replacement office ceilings and lighting, fire alarm, CCTV, internal repairs and redecoration, removal of the existing gas services, replacement of the rear entrance door serving the lower ground floor and ground floor, new decking and bike storage to lower ground floor lightwell, repair and restoration of the existing terrazzo flooring within the entrance lobby and damp proofing works.

    20 Oct 2022 43m away Heritage and listed buildings
  • 22/02827/FULL Granted

    Admiral House St Leonards Road Windsor SL4 3BL

    Replacement of existing end of life HVAC air conditioning system with a new VRF air conditioning system to be located internally and condensers at roof level, replacement of the rear entrance door serving the lower ground floor and ground floor, new decking and bike storage to lower ground floor lightwell.

    20 Oct 2022 43m away Full applications
  • 26/01096/TCA Granted

    5 St Marks Road Windsor SL4 3BD

    Cherry (Prunus spp) - remove.

    5 May 2026 59m away Trees

In Windsor and Maidenhead

  • 26/00962/FULL Granted

    Bonnicut Barn Bonnicut Court 14 High Street Sunningdale Ascot SL5 0NB

    2no. front dormers, part raising of the front elevation to form a parapet wall and terrace, 3no. front rooflights, 3no. rear dormers and alterations to fenestration. (Part Retrospective).

    20 Apr 2026 Full applications
  • 26/01310/FULL Granted

    6 Gilman Crescent Windsor SL4 4YN

    Single storey front/side extension, relocated front door, two storey rear extension, alterations to fenestration and hardstanding, new steps, 1 no. dropped kerb, following demolition of existing elements

    22 May 2026 Full applications
  • 25/03313/FULL Refused

    Land To The South of Lower Mount Farm Long Lane Cookham Maidenhead

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    15 Dec 2025 Full applications
  • 26/01387/FULL Granted

    7 Elm Road Windsor SL4 3NB

    Single storey rear/side extension

    5 Jun 2026 Full applications
  • 26/00877/FULL Granted

    45 Queens Close Old Windsor Windsor SL4 2PR

    Two storey front/side extension.

    7 Apr 2026 Full applications