MacArthur Holdings has acquired, for $9.5 million, the two-story, 15,264-square-foot commercial building at 233 Butler Street, located in Gowanus. The new owner plans to convert the property into retail space, DNAinfo reported. The building was most recently used by multiple tenants in the music businesses. It’s been vacated with the exception of one tenant, Retrofret Vintage Guitars. Alteration permits have not been filed with the Department of Buildings at this time. The lot contains 61,050 square feet of additional commercial-manufacturing development rights.