Which Irish building inspired the design of the White House?

Leinster House in Dublin inspired important elements of the White House’s design. Irish-American architect James Hoban drew on the Georgian mansion’s proportions and details, making the Dublin building a key link between Irish architecture and the American presidency.

Leinster House was built between 1745 and 1748 for James FitzGerald, the Earl of Kildare, and was designed by Richard Cassels. Renamed after FitzGerald became Duke of Leinster, the mansion was admired for its disciplined Palladian and Georgian composition. Hoban, who had Irish roots and worked in the United States, used its first- and second-floor arrangement as a model for the White House.

The connection is sometimes oversimplified. Leinster House was not the sole source for every feature of the White House: Palladian ideas and other Georgian country houses also influenced the design, and Château de Rastignac has been proposed as a possible influence on the South Portico. Still, among Irish buildings, Leinster House is the canonical answer. It later became the seat of Ireland’s parliament, the Oireachtas.