UCM/Onyx-1311 Mamaroneck Owner LLC of Woodbridge, NJ purchase Parker Corporate Center, at 1311 Mamaroneck Ave. in White Plains, NY, for $68.7 million, or approximately $214 per square foot. Hutchinson Corporate Park Associates (The Jack Parker Corp.) of New York, NY the sold Class A office building. The property was 96% leased at the time of the sale.