Ray Rice -- Selling Baltimore Mansion

Ray Rice is moving on from Baltimore -- selling the mansion he built in 2012 ... the same year he signed a $35 million contract with the Ravens ... this according to the Baltimore Sun.

The 4,736 sq. ft. home was listed at $899,000 -- and the Sun says Ray has already found a buyer. The sale is reportedly set to close in April.

The house is pretty sweet -- 5 beds, 4.5 baths on 1.08 acres.

So, where's Ray headed next? The disgraced running back says he and his wife Janay are moving back to his hometown of New Rochelle, NY.