Mercure Castle Hotel 18 High Street Windsor SL4 1LJ

This site has had 19 applications since 2021: 19 approved, 0 refused.

• 23/00378/CONDIT Granted

  Mercure Castle Hotel 18 High Street Windsor SL4 1LJ

  Details required by Condition 6 (Sample Of Render) of listed building consent 22/00998/LBC for the consent for the removal of the existing render at roof level and to the front elevation and undercroft where perished and renew with new breathable render using like for like materials/methods and decorated to match existing. Other works include the cleaning of elevations, formation of a new drip detail to both the parapet and cornice to prevent water ingress, ad-hoc repairs/replacement of roof slate, rainwater goods and leadwork, repairs to the chimney stacks, overhauling and subsequent repairs of the windows, French doors, and sills, and repairs to the balcony and balustrades as required including redecoration.approved.

  Decided 9 Mar 2023 Conditions
• 22/03266/CONDIT Granted

  Mercure Castle Hotel 18 High Street Windsor SL4 1LJ

  Details required by Condition 11 (Asbestos Report) of Listed Building Consent (22/00998/LBC) for consent for the removal of the existing render at roof level and to the front elevation and undercroft where perished and renew with new breathable render using like for like materials/methods and decorated to match existing. Other works include the cleaning of elevations, formation of a new drip detail to both the parapet and cornice to prevent water ingress, ad-hoc repairs/replacement of roof slate, rainwater goods and leadwork, repairs to the chimney stacks, overhauling and subsequent repairs of the windows, French doors, and sills, and repairs to the balcony and balustrades as required including redecoration.

  Decided 24 Jan 2023 Conditions
• 22/03171/CONDIT Granted

  Mercure Castle Hotel 18 High Street Windsor SL4 1LJ

  Details required by Condition 9 (Sample of Stonework) of Listed Building Consent 22/00998 for Consent for the removal of the existing render at roof level and to the front elevation and undercroft where perished and renew with new breathable render using like for like materials/methods and decorated to match existing. Other works include the cleaning of elevations, formation of a new drip detail to both the parapet and cornice to prevent water ingress, ad-hoc repairs/replacement of roof slate, rainwater goods and leadwork, repairs to the chimney stacks, overhauling and subsequent repairs of the windows, French doors, and sills, and repairs to the balcony and balustrades as required including redecoration.

  Decided 20 Jan 2023 Conditions
• 22/03168/CONDIT Granted

  Mercure Castle Hotel 18 High Street Windsor SL4 1LJ

  Details required by Condition 8 (Paint colour) of Listed Building Consent 22/00998 for Consent for the removal of the existing render at roof level and to the front elevation and undercroft where perished and renew with new breathable render using like for like materials/methods and decorated to match existing. Other works include the cleaning of elevations, formation of a new drip detail to both the parapet and cornice to prevent water ingress, ad-hoc repairs/replacement of roof slate, rainwater goods and leadwork, repairs to the chimney stacks, overhauling and subsequent repairs of the windows, French doors, and sills, and repairs to the balcony and balustrades as required including redecoration.

  Decided 20 Jan 2023 Conditions
• 22/03065/CONDIT Granted

  Mercure Castle Hotel 18 High Street Windsor SL4 1LJ

  Details required by Condition 7 (sample panel) of Listed Building Consent 22/00998 for Consent for the removal of the existing render at roof level and to the front elevation and undercroft where perished and renew with new breathable render using like for like materials/methods and decorated to match existing. Other works include the cleaning of elevations, formation of a new drip detail to both the parapet and cornice to prevent water ingress, ad-hoc repairs/replacement of roof slate, rainwater goods and leadwork, repairs to the chimney stacks, overhauling and subsequent repairs of the windows, French doors, and sills, and repairs to the balcony and balustrades as required including redecoration.

  Decided 21 Feb 2023 Conditions
• 22/02973/CONDIT Granted

  Mercure Castle Hotel 18 High Street Windsor SL4 1LJ

  Details required by condition 6 (lime sample) of Listed Building Consent (22/00998/LBC) for consent for the removal of the existing render at roof level and to the front elevation and undercroft where perished and renew with new breathable render using like for like materials/methods and decorated to match existing. Other works include the cleaning of elevations, formation of a new drip detail to both the parapet and cornice to prevent water ingress, ad-hoc repairs/replacement of roof slate, rainwater goods and leadwork, repairs to the chimney stacks, overhauling and subsequent repairs of the windows, French doors, and sills, and repairs to the balcony and balustrades as required including redecoration.

  Decided 20 Jan 2023 Conditions
• 22/02959/CONDIT Granted

  Mercure Castle Hotel 18 High Street Windsor SL4 1LJ

  Details required by condition 12 (cleaning details) of Listed Building Consent (22/00998/LBC) for consent for the removal of the existing render at roof level and to the front elevation and undercroft where perished and renew with new breathable render using like for like materials/methods and decorated to match existing. Other works include the cleaning of elevations, formation of a new drip detail to both the parapet and cornice to prevent water ingress, ad-hoc repairs/replacement of roof slate, rainwater goods and leadwork, repairs to the chimney stacks, overhauling and subsequent repairs of the windows, French doors, and sills, and repairs to the balcony and balustrades as required including redecoration.

  Decided 19 Jan 2023 Conditions
• 22/02882/CONDIT Granted

  Mercure Castle Hotel 18 High Street Windsor SL4 1LJ

  Details required by Condition 10 (lead detailing) for Listed Building Consent (22/00998/LBC) for consent for the removal of the existing render at roof level and to the front elevation and undercroft where perished and renew with new breathable render using like for like materials/methods and decorated to match existing. Other works include the cleaning of elevations, formation of a new drip detail to both the parapet and cornice to prevent water ingress, ad-hoc repairs/replacement of roof slate, rainwater goods and leadwork, repairs to the chimney stacks, overhauling and subsequent repairs of the windows, French doors, and sills, and repairs to the balcony and balustrades as required including redecoration.

  Decided 9 Mar 2023 Conditions
• 22/02694/CONDIT Granted

  Mercure Castle Hotel 18 High Street Windsor SL4 1LJ

  Details required by Condition 3 (door details) of Listed Building Consent 22/01523 for Consent for the removal of an existing false window and replace with a sliding door in the bar area.

  Decided 12 Jan 2023 Conditions
• 22/01534/FULL Granted

  Mercure Castle Hotel 18 High Street Windsor SL4 1LJ

  New raised decking area for outdoor seating with planters and awning and removal of an existing false window and replace with a sliding door in the bar area.

  Decided 1 Sep 2022 Full applications

1. 10 Jun 2021

   Received by Windsor and Maidenhead

2. 5 Jul 2021

   Validated

   Checked as complete and ready for consideration.

3. 13 Sep 2021

   Decision issued: Application Permitted

4. 3 Sep 2026

   Added to PlanIndex

Windsor and Maidenhead granted permission on 13 September 2021, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. 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.

• Land To Rear of 12A To 14 Peascod Street Windsor

  19/03439/FULL Submitted 10 Dec 2019 50 yards away

  New refuse storage area.

  Withdrawn Full applications 12 docs

• Land Rear of 12 And 12A Acre Passage Windsor

  20/01553/FULL Submitted 30 Jun 2020 50 yards away

  Timber screening, railings above the existing brick wall, 3no. doors including a fire exit door, security gate to the entrance of the existing flats and enclosure of existing refuse storage area.

  Granted Full applications New dwelling 18 docs

• Castle Hotel Windsor 18 High Street Windsor SL4 1LJ

  26/00929/LBC Submitted 14 Apr 2026 50 yards away

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

  Granted Heritage and listed buildings 23 docs

• Boots 17 - 18 Peascod Street Windsor SL4 1DU

  26/01091/CONDIT Submitted 1 May 2026 50 yards away

  Details required by Condition 2 (Materials) of planning permission 20/03514/FULL for a Part demolition of building with retention of reduced retail store footprint and redevelopment of the demolished section of building for new build hotel incorporating ancillary restaurant and bar, integrated service area and engineering operations to create frontage landscaping area to provide lay-by, pavement and parking space.

  Granted Conditions New dwelling Demolition 7 docs

• Boots 17 - 18 Peascod Street Windsor SL4 1DU

  24/01669/CONDIT Submitted 9 Jul 2024 50 yards away

  Details required by Condition 9 (SUDs) of planning permission 20/03514/FULL for the part demolition of building with retention of reduced retail store footprint and redevelopment of the demolished section of building for new build hotel incorporating ancillary restaurant and bar, integrated service area and engineering operations to create frontage landscaping area to provide lay-by, pavement and parking space.

  Granted Conditions New dwelling Demolition 9 docs

• Boots 17 - 18 Peascod Street Windsor SL4 1DU

  23/00734/CONDIT Submitted 22 Mar 2023 50 yards away

  Details required by Condition 13 (Contaminated Land) of planning permission 20/03514/FULL for the part demolition of building with retention of reduced retail store footprint and redevelopment of the demolished section of building for new build hotel incorporating ancillary restaurant and bar, integrated service area and engineering operations to create frontage landscaping area to provide lay-by, pavement and parking space.

  Granted Conditions New dwelling Demolition 16 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