IRVING, TEXAS — SVN has negotiated the sale of Rock Island Apartments, a 154-unit multifamily property in Irving. The property was built in 1973 and was 98 percent occupied at the time of sale. Byron Griffith of SVN brokered the sale. The Arlington-based buyer will implement a value-add program to the unit interiors and amenities. Other terms of sale and the seller were not disclosed.