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Developer Marcus Partners has paid $25 million for a 1.4-acre site in Boston’s Seaport District with redevelopment potential as life science space.

The 1.4-acre property contains a 46,879-square-foot building housing Au Bon Pain’s headquarters and a baking center, along with surface parking.

The property is owned by Boston’s Economic Development and Industrial Corp. and located within the Raymond L. Flynn Marine Park, where industrial uses are being steadily replaced by office and lab tenants. Colliers Managing Director Frank Petz and Senior Advisor John Nasca negotiated the sale and lease assignment.

Dwindling availabilities for life science development sites in Cambridge and Boston have prompted a series of acquisitions and development plans for the eastern end of the Seaport District, which contains multiple large industrial properties.

“We received widespread interest from the market, and the owners appreciated a competitive process attracting renowned investors and developers from the Boston area and beyond,” Petz said in a statement.

In November, life science developer Alexandria Real Estate Equities paid $168.5 million for a pair of industrial properties on E Street spanning six acres.

And The Davis Cos. of Boston is proposing a major addition to its 88 Black Falcon property to add nearly 331,000-square-feet of office, lab, industrial and R&D space.