Barry K. Schwartz, the co-founder of Calvin Klein Inc., and his wife Sheryl Schwartz are listing their sprawling equestrian estate in New York’s Westchester County for $100 million.

Spanning roughly 740 acres, the estate is among the largest privately owned properties in the county, according to listing agency Christie’s International Real Estate.

Known as Stonewall Farm, the property is in a hamlet called Granite Springs. Its elaborate equestrian facilities include a turf racetrack, riding trails, a 40-stall barn and two 24-stall barns, numerous fenced-off paddocks and pastures with run-in sheds.

The couple has bred or raced about 65 stake winners and several horses on the farm that have gone on to compete in the Kentucky Derby, Mr. Schwartz said.

A grocer’s son from the Bronx, Mr. Schwartz said he began attending races at nearby Belmont Park at age 15.

He and Ms. Schwartz met on a blind date watching trotters at Roosevelt Raceway in Westbury, N.Y., in 1967. They bought the largest swath of Stonewall, a 673-acre parcel, for $3.25 million in 1979, shortly after deciding to get into the racing business.

They added an additional parcel of land shortly after. The main house, a Colonial plantation-style manor, took four years to build and was completed in 2003.

The four-story home has a white clapboard facade and columned balustrade. The slate roof was repurposed from the Yale Divinity School.

The interior of the roughly 24,000-square-foot, eight-bedroom home was designed by British decorator Kelly Hoppen and combines a neutral palette with antiques.

Trophy pieces include a Qi dynasty Buddha, an old English mantel and a two-tier chandelier in the sitting room.

There is a sunroom with french doors that open up to a bluestone terrace, a two-story library with saddle-leather floor tiles, and a 2,200-bottle wine cellar with a tasting room and game room. The master suite has its own Japanese-inspired Zen garden with a water feature, inspired by Mr. Schwartz’s regular trips to Asia during his time at Calvin Klein.

Outside, the gardens include lavender and boxwood hedges and a pergola walkway. There are more Japanese-style gardens and a butterfly garden that was built as a surprise for Mr. Schwartz, who loves the creatures.

A 4,000-sq-ft outbuilding has a 60-foot-long swimming pool and spa, a gym and a sauna. The property also includes eight staff residences, a guesthouse and a caretaker’s residence.

The property is listed by Kathleen Coumou of Christie’s International Real Estate and Andrew Emery of Christie’s International Real Estate Westchester | Hudson Valley.

Via WSJ - Katherine Clarke