Cardiff created its own Poor Law Union in 1836 and the new Cardiff Union Workhouse was built, subsequently changing to St David's Hospital in 1948 before the site was redeveloped into luxury apartments in 2002.
- 1836 - Cardiff Union Workhouse
- 1872 - Infirmary for the sick added
- 1930 - Transferred from the Board of Guardians to the Public Assistance Committee of Cardiff County Council
- 1948 - Joined the National Health Service as St David's Hospital
- 1990 - Majority of the old buildings demolished, leaving the Victorian entrance building and clock tower
- 2002 - Building refurbished and converted into apartments, Tŷ Ddewi Cwrt (St David's Court). New hospital built behind original building