Dublin Castle (Bermingham Tower)

Attached four-storey round-plan tower, built c. 1220, rebuilt 1775-7, forming southwest corner of the medieval castle. Shallow domed roof, concealed behind parapet. Uncoursed rubble limestone walling to ground floor, with battered base, having ashlar limestone stringcourse between base and next stage, latter having limestone stringcourses at sill level and above openings. Painted rendered walling to top two floors. Perron staircase behind rubble stone wall on ashlar limestone plinth with ashlar limestone coping giving to stone staircase with metal balustrade rising to ground floor entrance to east. Blank panel above second floor, window with moulded surround. Pointed-arch openings to first floor, with inset segmental-headed nine-over-nine pane timber sliding sash windows, having rendered surrounds; wider and taller pointed-arch window openings to second floor, with moulded ashlar limestone surrounds, hood-mouldings with label-stops, cast-iron balconettes and nine-over-six pane windows with bottom hung Y-tracery top lights. Small segmental-headed window openings to top floor, having masonry sills and three-over-three pane windows. Metal plaque to base of tower at south side relates history of building. Interior has round Bermingham Tower Room with hardwood floor, painted plastered walls, moulded skirtings, dado and impost frieze and cornice, regularly disposed pointed-arch openings to north and south, with moulded surrounds, those to north having painted timber double-leaf doors, each with eight raised-and-fielded panels and Y-tracery fanlights. Flat plastered ceiling with radial design and outer band of polygonal panels enclosing quatrefoils, delicately moulded and enriched cornice and frieze, and with marble chimneypiece to west.