Windfall, a Muttontown compound with 6,000 square feet of space on two acres, is on the market for $2.795 million.

The heart of the three-building estate is a restored three-bedroom two bathroom and a half-bath home built in 1928. At that time, it was a gatehouse and garage complex for the Bayberry Downs mansion, completed in 1930. Both were once part of the 60-plus-acre estate of Francis T. Nichols Sr.

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"The owners lived there as they were building a mansion behind it -- this was eventually going to be for staff," says listing agent Barbara Brundige of Douglas Elliman Real Estate.

The French-inspired architecture of the gatehouse complex reflects the style of Bayberry Downs, the only known Long Island home designed by renowned architects Elton L. Howard and William E. Frenaye Jr., according to the book "Long Island's Gold Coast."

The almost 3,000-square-foot space features a four-room master suite on the second floor containing a sitting room, dressing room, bedroom and bathroom. Custom interior finishes can be found throughout the house, along with updated kitchen and electrical systems.

On the grounds, there are English- and French-style gardens, a three-bedroom, approximate 2,000-square-foot guesthouse and a 1,000-square-foot Palm Beach pool villa with kitchen, heat, bathroom, washer and dryer and private patio. A heated saltwater pool is next to the villa, which was converted from a barn.

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Twenty-seven varieties of hydrangea can be found on the property, says Paul Zweben, who is co-listing the property with Brundige and Carolyn Zweben.