The Castle Hotel - Sutton Hotel Collection, Chatsworth

About Venue

Host extraordinary events, memorable private dinners, share strategy, and bring business to life in the heart of Windsor at The Castle Hotel. Offering a dedicated conference centre with a breakout area and 10 flexible, modern meeting rooms ranging from 2 to 400 delegates including the largest ballroom in Windsor, The Windsor and Georgian Suite. If you are looking for a wow factor for your event, then look no further.

Having gained both the Green Tourism Gold and Green Meetings Gold awards, sustainability is a key focus with a green meetings package offered as standard. Centrally located in Windsor, the hotel is easily accessible and is less than 10 miles from Heathrow Airport. It benefits from being just five-minutes from junction 6 of the M6 and is a short walk from the train station with connections into central London in under an hour. Delegates also benefit from onsite car parking, including EV charging points.

Sutton Hotel Collection is investing £9.5 million in the refurbishment of the Castle Hotel Windsor, to be completed later this year. The multi-phase transformation led by interior designers including 3DReid began in November 2025 and on completion will see a full refresh of all bedrooms and suites across the hotel.

The Mews bedrooms are now completed. Located on the site of the hotel’s former stables they offer six elevated guestrooms including suites with separate lounge areas. Perfect for families, or a more secluded stay. All 108 bedrooms will be refreshed to combine rich colours and soft textures. Thoughtful, updated amenities such as Roberts radios and in-room coffee machines will add to the experience.

Coming soon. At the heart of the hotel’s next chapter is Penningtons, a new restaurant and bar opening alongside the relaunch. Named after 17th-century innkeeper George Pennington, who introduced the locally used Pennington Penny token currency in 1656, the restaurant celebrates the hotel’s heritage as Windsor’s original inn. Developed in partnership with Auden Hospitality, Penningtons will champion British cuisine and local provenance in a relaxed yet polished setting.

The menu will be rooted in familiar British classics with playful twists. A signature feature will be a collection of reimagined British pies, alongside seasonal dishes, a traditional Sunday roast and a dessert trolley. Afternoon tea will also form a central part of the experience for visitors exploring Windsor.

We thank you for your continued support during this period of transformation and look forward to welcoming you and your delegates to the hotel.

When you need to tick off all the points on your agenda. Comfy conference chairs, unlimited tea and coffee and seamless wifi connection, settle in to our Chatsworth suite.

Seating up to 12 people, and located on the ground floor. There's plenty of natural light. Breakout into our dedicated space to refuel at any point.