The William Floyd Estate

A white colonial estate with green shutters is surrounded by trees and snow.
The Old Mastic House at the William Floyd Estate


Quick Facts
Mastic Beach, New York
The historic birthplace of William Floyd, and home to generations of Floyd family members.

Baby Changing Station, Bicycle - Rack, Cellular Signal, First Aid/Medical Care Available, Gifts/Souvenirs/Books, Historical/Interpretive Information/Exhibits, Information, Information - Maps Available, Information - Ranger/Staff Member Present, Information Kiosk/Bulletin Board, Parking - Auto, Picnic Table, Restroom, Restroom - Accessible, Restroom - Family, Restroom - Seasonal, Scenic View/Photo Spot

Enjoy a walk through time when you visit the William Floyd Estate. The Estate was at the center of the Floyd Family's life for more than 250 years and the ancestral home, grounds, outbuildings, and family cemetery help tell the story of the continual use, change, and adaptations that took place here in Mastic Beach, New York.



The William Floyd Estate, which was authorized as an addition to Fire Island National Seashore, is located on the mainland of Long Island. Two hundred and fifty years of history are preserved at the Estate.

The William Floyd Estate features the 25-room "Old Mastic House" and historic grounds, which includes twelve outbuildings, the family cemetery, and 613 acres of forest, fields, marsh, and trails. The Old Mastic House contains a variety of architectural features and artifacts from three centuries of American life, the story of the family, and their use and enjoyment of this place.

The William Floyd Estate and grounds are open between Memorial Day and Veterans Day. The Old Mastic House may be closed due to Covid-19. 

To check operating hours visit:
 Operating Hours & Seasons - Fire Island National Seashore (U.S. National Park Service) (

Fire Island National Seashore

Visit our keyboard shortcuts docs for details
4 minutes, 28 seconds

An introduction to the William Floyd Estate with Ranger Anita from the summer of 2020

Last updated: April 6, 2021