3 High Street Windsor SL4 1LD

This site has had 2 applications since 2026.

• 26/01399/LBC Awaiting decision

  3 High Street Windsor SL4 1LD

  Consent for works to facilitate the change of use of the second floor from Class E Offices to Class C3 residential to provide two self-contained apartments, including replacement of second floor rear windows and double doors with slim profile double glazing, new internal subdivisions/partitions, new services for bathrooms, and installation of new secondary glazing to front sash windows.

  Submitted 8 Jun 2026 Heritage and listed buildings

1. 8 Jun 2026

   Received by Windsor and Maidenhead

2. 30 Jun 2026

   Validated

   Checked as complete and ready for consideration.

3. 25 Jul 2026

   Added to PlanIndex

4. Decision

   Awaiting decision

   Decision expected by 25 August 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.

   Windsor and Maidenhead took a median of 56 days over the applications it decided in the last year.

This application is with Windsor and Maidenhead for determination, against a statutory target of eight weeks. Over the last year Windsor and Maidenhead decided full applications in a median of 64 days. More in our guide to how long planning decisions take.

A full application seeks permission for a complete, detailed proposal in one go, with siting, design, access and landscaping all fixed at this stage. More in our guide to planning application types.

• 3 High Street Windsor SL4 1LD

  26/01399/LBC Submitted 8 Jun 2026 50 yards away

  83% historically approved · decision due ~11 Aug

  Consent for works to facilitate the change of use of the second floor from Class E Offices to Class C3 residential to provide two self-contained apartments, including replacement of second floor rear windows and double doors with slim profile double glazing, new internal subdivisions/partitions, new services for bathrooms, and installation of new secondary glazing to front sash windows.

  Awaiting decision Heritage and listed buildings New dwelling Windows or glazing 19 docs

• 7 High Street Windsor SL4 1LD

  26/01426/FULL Submitted 9 Jun 2026 50 yards away

  Change of use of part of the basement, first and second floor from office (Class E) to mixed use compromising Sui Generis (Beauty Salon) and ancillary uses.

  Granted Full applications 22 docs

• The Quadrant 55 - 57 High Street Windsor SL4 1LP

  20/03190/LBC Submitted 26 Nov 2020 50 yards away

  Consent for repairs to external facade

  Granted Heritage and listed buildings 12 docs

• Stores Rear of 6 High Street Windsor

  26/01271/FULL Submitted 21 May 2026 50 yards away

  Change of use of the existing building, from Commercial Office (Use Class E) to 2 x serviced apartments (Sui Generis), including internal reconfigurations and external conservation-style roof lights.

  Withdrawn Full applications New dwelling Loft or dormer 32 docs

• 9A High Street Windsor

  25/01060/FULL Submitted 23 Apr 2025 50 yards away

  Creation of 3no. dwellings with ancillary storage units in basement, new external staircase to basement, alterations to fenestration and existing car park spaces, 1no. cycle shed and new gate and railings.

  Refused Full applications Windows or glazing 40 docs
  Several homes

• 9A High Street Windsor

  25/01061/LBC Submitted 23 Apr 2025 50 yards away

  Consent for internal alterations to create 3no. dwellings with ancillary storage units in basement, new external staircase to basement alterations to fenestration and railings

  Granted Heritage and listed buildings Windows or glazing 23 docs
  Several homes

• 26/02029/FULL Granted

  5 Kimber Close Windsor SL4 4BJ

  Single storey rear extension.

  Received 17 Aug, published by the council 27 Aug 2026 Full applications
• 26/01955/FULL Granted

  2 Holmlea Road Datchet Slough SL3 9HQ

  Change of use from a dwellinghouse (Use Class C3) to a children's home (Use Class C2) for up to three children, together with conversion of the garage to an office with an en-suite facilities and alterations to fenestration.

  Received 7 Aug, published by the council 27 Aug 2026 Full applications
• 26/01121/FULL Granted

  Zain House 15 Wilton Crescent Windsor SL4 4YJ

  Single storey side/front extension, first floor extension over existing side element with 1no. Juliet balcony and 1no. Juliet balcony to existing rear elevation.

  Received 6 May, published by the council 11 Aug 2026 Full applications
• 26/01977/FULL Granted

  9 St Marks Place Windsor SL4 3BG

  Garage conversion and alterations to fenestration.

  Received 11 Aug, published by the council 24 Aug 2026 Full applications
• 26/01804/FULL Granted

  16 Devereux Road Windsor SL4 1JJ

  Installation of air conditioning compressor unit to the first floor side elevation.

  Received 23 Jul, published by the council 24 Aug 2026 Full applications