[2] The hospital has its origins in a convalescent home for sick and needy children established on East Parade in 1872.

[1] The present building was designed by Alfred Waterhouse, perhaps with later input from his son, Paul, as a children's hospital and convalescent home.

The hospital design, which was based on a pavilion incorporating open balconies and verandahs, responded to the importance then attached to fresh air as a treatment.

[1] Construction started in 1899 and it was officially opened through a ceremony, first by Winifred, Countess of Dundonald in 1900[4] and later by Prince George and Princess Mary in 1902.

[3] In May 2020 Betsi Cadwaladr University Health Board released plans for a new community hospital as part of a wider refurbishment programme.