The Trearddur Bay Hotel was built originally as a family residence by Sir Henry Grayson, a Liverpool shipowner. It was converted into a hotel and run by the Roberts family during the Edwardian years, before being sold to W.H. Williams of Trecastell. 

The Hotel has been extensively altered over the years, with the Inn restaurant area, the 'Snug' Bar and Penrhos Business and Function facilities added more recently.

Today, the Trearddur Bay is an impressive hotel, restaurant and bar. Situated overlooking the sandy bay, providing a perfect base for activity holidays, with all the amenities required for corporate or social events.

The hotel has recently won the "Best Anglesey Hotel 2008" which was awarded by the Anglesey Tourism Association.