There are eleven rooms with the Institute capable of holding between twenty and a hundred people. The ground floor consists of the historic 1905 library and a modern library run by the local authority.There is also a room displaying the artefacts found during the archaeological dig at Llys Rhosyr, once the site of the Llys of the Welsh Princes. It also has an exhibition of the history of Medieval Anglesey.
The public library is open Monday am, Wednesday pm and Friday pm, the Llys Rhosyr exhibition daily. Guided tours of the building can be arranged.
The Assembly Hall is located on the first floor which is accessed by stairs and lift. It is suitable for meetings of up to a hundred people.. There are a further five rooms on this floor suitable for smaller meetings, offices etc. There are toilets on both floors with access for the disabled. Broadband is available throughout as are facilities for digital projection.
The Institute is available for conferences, entertainment, educational meetings, exhibitions, parties, wedding receptions, funeral teas etc. Catering can be arranged for meetings. The current tariffs are £30 per room per session and £60 per session in the Assembly Room. Discounts are available for local residents and groups.
There are three spacious offices available for a reasonable rent.
The six Cottages were built in 1905 and consist of a living room, double bedroom, toilet, bathroom, and kitchen. They are gas centrally heated and available for renting when vacancies arise.
There is parking for about 25 vehicles on site and there is a free public car park about 100m away.
The field across the road from the Institute and Cottages, originally known as Cae Coryn y Ci, was originally used as gardens for each of the six Cottages. However because of declining interest in the gardens the southern part of the field now accommodates a recently renovated children’s play-area, which is managed by Parc-y-plant Committee. Parc y Plant was completely refurbished in 2010.