The mansion is built of wood in a loose Palladian style, and was constructed by George Washington in stages between 1758 and 1778; it occupies the site of an earlier, smaller house built by George Washington's father Augustine, some time between 1726 and 1735. It remained Washington's country home for the rest of his life. Following his death in 1799, under the ownership of several successive generations of the family, the estate progressively declined. In 1858, the house's historical importance was recognized and it was saved from ruin by The Mount Vernon Ladies' Association; this philanthropic organization acquired it together with part of the Washington estate. Escaping the damage suffered by many plantation houses during the American Civil War, Mount Vernon was restored.