Old Mastic House at the William Floyd Estate, Fire Island National Seashore
William Floyd Estate Home Page
The main draw of the William Floyd Estate at Fire Island National Seashore is the Old Mastic House, the birthplace of Declaration of Independence signer William Floyd. The house is open from May through the end of September for self-guided tours, usually on Wednesdays through Sundays from 9 AM to 4:30 PM. A park Ranger or volunteer will be inside to answer any questions. Be sure to check the National Park Service’s official William Floyd Estate web page for the current schedule.
Old Mastic House started out as a six-room building in 1724. Additions were made all the way up through the 1920s, expanding the house to 27 rooms. Visitors are allowed into a few of the rooms on the first floor, which feature antique furniture and other exhibits such as historical photos.
Interior of William Floyd’s Old Mastic House, Fire Island National Seashore
Display of old photographs inside the Old Mastic House on the Willliam Floyd Estate, Fire Island National Seashore
All of the furnishings in the house were owned by the Floyd Family at some point during their 250-plus years of occupation, so there is a mishmash of antiques on display. The earliest items are from the mid-1700s, and the newest is a dishwasher from 1975. A few of the items did belong to William Floyd. Cornelia Floyd Nichols, the great, great granddaughter of Floyd and the last private owner of the estate, put identification tags on some of the items to help clarify their history.
Interior of William Floyd’s Old Mastic House, Fire Island National Seashore
Interior of William Floyd’s Old Mastic House, Fire Island National Seashore
Plan to spend 15 to 30 minutes for your visit to the Old Mastic House.
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Last updated on June 16, 2026
