William Floyd Estate's "Old Mastic House"
In 1857, John G. Floyd, Sr. restyled the front of the house, adding the large porch, the cornice, and other details in the Greek Revival style.
He also remodeled the East Wing from a kitchen into a bedroom suite—with the home's first bath—and built a new wing wing on the northeast side for a kitchen, laundry and larder sheds.
In 1898, John G. Floyd, Jr. added a wing on the northwest side to help accommodate the many guests visiting the family during their summer retreats from New York City.
The new northwest wing included a hallway, sitting room and bath.