Vito Errico, a former Bridgehampton resident, designed the custom-built Armonk estate in collaboration with in-house Equinox designers, Realtor.com reports.
Built in 2006, it features a combination of glass, stone and wood.
The six-bedroom, six-and-a-half bathroom, 11,423-square-foot mansion is on 2.65 acres of property, according to its Houlihan Lawrence listing.
The master suite features two fireplaces, a spa-bathroom and walk-in closets.
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