Borgen er i dag en ruin, hvor mindre del er inkorporeret i St. Mary's Priorys bygning, som en del af St. Mary's Dominican Priory og the Priory Institute Den gamle park, Archbishop’s bathhouse, Friar's Walk og St. Maelruain's Tree er stadig bevaret.
↑Erck, John Caillard (1827). The ecclesiastical register: containing the names of the dignitaries and parochial clergy of Ireland: as also of the parishes and their respective patrons and an account of monies granted for building churches and glebe-houses with ecclesiastical annals annexed to each diocese and appendixes: containing among other things several cases of quare impedit. R. Milliken and Son. 1324 Tallaght-castle - remission of money granted to the archbishop of Dublin, on the 26th July in the seventeenth year of Edward II in consideration of his building Tallaght castle
↑Wilde, William Robert (1880). Memoir of Gabriel Beranger: And His Labours in the Cause of Irish Art and Antiquities, from 1760 to 1780. M.H. Gill & Son. s.6–7.