Balcastle is a historic home located at Southampton in Suffolk County, New York. It was built in 1910 and is a large 1-story, five-bay, brick-sheathed residence with a small -story octagonal tower on the west side and large, 2-story square tower on the east side. It is an example of castellated Gothic architecture. Also on the property is a small, wood-frame hexagonal garden pavilion. ()
It remains privately owned as of 2025.https://www.zillow.com/homedetails/143-Herrick-Rd-Southampton-NY-11968/32717600_zpid/?msockid=2718a1415ee06c1f027fb5065fe26dca
It was added to the National Register of Historic Places in 1986.
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