Castle Hotel Windsor 18 High Street Windsor SL4 1LJ

This site has had 12 applications since 2025: 5 approved, 3 refused.

• 26/02044/LBC Awaiting decision

  Castle Hotel Windsor 18 High Street Windsor SL4 1LJ

  Consent for new and replacement signage and external painting of the entrance doors and existing window frames.

  Submitted 19 Aug 2026 Heritage and listed buildings
• 26/02049/ADV Awaiting decision

  Castle Hotel Windsor 18 High Street Windsor SL4 1LJ

  Consent for 18no. non illuminated wall mounted signs; 1no. non illuminated pole mounted sign; 1no. illuminated wall mounted sign; external lettering to the front elevation, 1no. externally illuminated projecting sign and 2no. non illuminated hanging signs and 2no. internally illuminated menu boxes.

  Submitted 19 Aug 2026 Advertising
• 26/01913/FULL Awaiting decision

  Castle Hotel Windsor 18 High Street Windsor SL4 1LJ

  Removal of existing garden fixtures and fittings and provision of replacement seating, entrance gate and front screening, planters. New ground surface with resin-bound gravel, decorative ceiling awning, new garden umbrellas and new escape stair screening fence.

  Submitted 4 Aug 2026 Full applications
• 26/01914/LBC Awaiting decision

  Castle Hotel Windsor 18 High Street Windsor SL4 1LJ

  Consent for replacement seating, entrance gate and front screening, planters. New ground surface with resin-bound gravel, decorative ceiling awning, new garden umbrellas and new escape stair screening fence.

  Submitted 4 Aug 2026 Heritage and listed buildings
• 26/01103/ADV Refused

  Castle Hotel Windsor 18 High Street Windsor SL4 1LJ

  Consent to display 2no. non-illuminated hanging signs; 2no. back illuminated wall mounted menu boards and the installation of 7no non-illuminated retractable awnings.

  Decided 17 Sep 2026 Advertising
• 26/01101/LBC Refused

  Castle Hotel Windsor 18 High Street Windsor SL4 1LJ

  Consent for the repainting of the entrance doors and window facades and the replacement of 2no. non-illuminated hanging signs; 2no. back illuminated wall mounted menu boards and the installation of 7no non-illuminated retractable awnings.

  Decided 17 Sep 2026 Heritage and listed buildings
• 26/00929/LBC Granted

  Castle Hotel Windsor 18 High Street Windsor SL4 1LJ

  Consent for internal refurbishment works to upper floors and basement and limited rear facade amendments.

  Decided 2 Jul 2026 Heritage and listed buildings
• 26/00631/LBC Granted

  Castle Hotel Windsor 18 High Street Windsor SL4 1LJ

  Consent for the internal works and alterations at ground floor including demolition and refurbishment works to the entrance way, reception, bar and dining areas and managers office.

  Decided 20 May 2026 Heritage and listed buildings
• 26/00182/CONDIT Granted

  Castle Hotel Windsor 18 High Street Windsor SL4 1LJ

  Details required by Condition 3 (Aircraft noise) of planning permission 24/01100/FULL for Works to the existing Mews building to include the replacement of existing canopy and removal of existing Juliet balconies to windows on east elevation, replacement windows and alterations to external finish to Mews and rendered areas of the existing buildings including the Conference area, external link corridor and entrance to hotel bedroom wing.

  Decided 27 Feb 2026 Conditions
• 25/02140/FULL Granted

  Castle Hotel Windsor 18 High Street Windsor SL4 1LJ

  7no. replacement windows and the redecoration and repair of 3no. windows to the north elevation, 9no. replacement windows and the redecoration and repair of 4no. windows to the south elevations, 26no. replacement windows, the redecoration and repair of 2no. windows and the redecoration of 2no. windows to the west elevations.

  Decided 26 Nov 2025 Full applications

1. 5 May 2026

   Received by Windsor and Maidenhead

2. 11 May 2026

   Validated

   Checked as complete and ready for consideration.

3. 25 Jul 2026

   Added to PlanIndex

4. 17 Sep 2026

   Decision issued: Refuse

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.

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.

• Castle Hotel Windsor 18 High Street Windsor SL4 1LJ

  26/01103/ADV Submitted 5 May 2026 50 yards away

  Consent to display 2no. non-illuminated hanging signs; 2no. back illuminated wall mounted menu boards and the installation of 7no non-illuminated retractable awnings.

  Refused Advertising 18 docs

• Castle Hotel Windsor 18 High Street Windsor SL4 1LJ

  26/01101/LBC Submitted 5 May 2026 50 yards away

  Consent for the repainting of the entrance doors and window facades and the replacement of 2no. non-illuminated hanging signs; 2no. back illuminated wall mounted menu boards and the installation of 7no non-illuminated retractable awnings.

  Refused Heritage and listed buildings Windows or glazing 18 docs

• Castle Hotel Windsor 18 High Street Windsor SL4 1LJ

  25/02140/FULL Submitted 22 Aug 2025 50 yards away

  7no. replacement windows and the redecoration and repair of 3no. windows to the north elevation, 9no. replacement windows and the redecoration and repair of 4no. windows to the south elevations, 26no. replacement windows, the redecoration and repair of 2no. windows and the redecoration of 2no. windows to the west elevations.

  Granted Full applications Windows or glazing 24 docs

• Mercure Castle Hotel 18 High Street Windsor SL4 1LJ

  22/00975/ADV Submitted 7 Apr 2022 50 yards away

  Consent to display 1no. non-illuminated fascia sign.

  Granted Advertising 18 docs

• Mercure Castle Hotel 18 High Street Windsor SL4 1LJ

  21/02063/FULL Submitted 5 Jul 2021 50 yards away

  New outdoor seating area with entrance gates, decking, steps, access ramp and handrails, pergola, arbour and planters. (Retrospective)

  Granted Full applications 36 docs

• Mercure Castle Hotel 18 High Street Windsor SL4 1LJ

  22/01330/LBC Submitted 17 May 2022 50 yards away

  Replacement of existing hotel name sign on the front facade with a new name sign.

  Granted Heritage and listed buildings 18 docs

• 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