The hotel is superbly placed to host large and small conferences, meetings and events. Offering a suite of rooms, the hotel is the perfect place to do business, build relationships with clients and work alongside colleagues. The stunning grounds set around the ornate fountain offer themselves to team building events and outdoor activities.

St Mellon’s Hotel offers several unique conference spaces which are designed to suit a diverse variety of needs and requirements. The beautiful ballroom has been refurbished and can cater for up to 220 delegates. The Adam Room is tailored for small, more intimate events for up to 10 guests. Our prestigious library offers guests a light airy room with high ceilings and a stunning ornate balcony which is accessed through large French doors and can host up to 60 people.

The hotel boasts an exceptional staffing team, who can help with any requirements. The team are unobtrusive and can handle every detail of your event to ensure you are satisfied. We want to always exceed your expectations. Free Wi-Fi is available throughout the hotel.

This information is based on a non-package booking.

The Adam Room

This is the smallest of our conference rooms and is situated at the front of the hotel overlooking the lawns and gardens. Comfortably seats up to 12 delegates around an oval boardroom table. Refreshments can be taken in the cocktail bar and lounge.

Half Day Hire £75 – Full Room – £100

The Library

Beautifully decorated the old Library is a popular room for the smaller meeting for training courses. Can be set up in several ways.

Theatre style 60  –  Boardroom style 20  –  Cabaret style 20

Half Day Hire £100  –  Full Room £150

The Ballroom

This elegant Ballroom looks back to the 19th Century where society mingled under the twinkling chandeliers either for dancing or conferences. Ideal for hosting larger conferences and presentations the room can seat up to 220 theatre or 100 cabaret style.

Half Day Hire £175 – Full Room £175

The Worcester Room

This room is a section of the Ballroom with its own entrance, cloakroom and bar and can be set up as a meeting room in its own right or, by removing the folding wall, opens up into the whole Ballroom.

Theatre Style 120 – Cabaret 80 – Schoolroom 40

Half Day Hire £100 – Full Room £150

The Gloucester Room

Theatre Style 70 – Cabaret 30


Half Day Hire £100 – Full Room £150

The St Mellon’s Hotel offers an elegant and relaxed venue for all your business needs. Our four comfortable suites, each with wi-fi, have large Victorian windows overlooking the gardens. Two of the rooms have recently been redecorated to executive boardroom standard and our comfortable bar area for pre-meal beverages or drinks can also host meals taken from the snack menu.

Alternatively, for a slightly more leisurely lunch, the Henry Webb Restaurant can speedily provide a hot or cold buffet or served meals. After a full day’s work, our fantastic spa and leisure centre provides guests with an opportunity to wind down, and if time permits perhaps play nine holes of Golf at St Mellon’s Golf Club; just 200 yds down the road.




01633 680355

Weddings, Conferences & Events:

Bedrooms & Restaurant:

Castleton, St Mellons, CardiffCF3 2XR 

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© St Mellons Hotel

Company registration name – Tremorfa Proprty Ltd t/a St Mellons Hotel

Company registration number – 09094834

Place of registration – United Kingdom