A four-acre property in Sagaponack, on the market for $22.5 million, comes with a few different historic structures that hearken back to the area's farming past.

The three-bedroom, 4.5-bathroom main house is a barn that was built in 1888 and converted to a residence in the early 1980s, says listing agent Diane Saatchi of Saunders & Associates. It's filled with original wood beams and has a brick floor in the living room and wide picture windows overlooking the landscaped grounds. Another barn on the property that dates back to the early 1900s was transformed into a gym, and a structure that was once a chicken coop became an office.

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There's also a small farmhouse where a descendant of the original farmer lived until the 1990s. Six years ago, the current owners added to the structure and turned it into a six-bedroom, 8.5-bathroom guesthouse with a full kitchen and a fireplace.

The property also has a picturesque pond with waterlilies and a wooden bridge, a heated pool with a spa and a sunken Har-Tru tennis court.

"It takes you back in time," Saatchi says of the property.