 LOS ANGELES--BUSINESS WIRE--Kilroy Realty Corporation NYSE: KRC today said it has signed a definitive agreement to sell The Exchange on 16th, the companys 750,000 square-foot office property located at 1800 Owens Street in San Franciscos Mission Bay neighborhood, for a purchase price of 1.08 billion or approximately 1,440 per square foot. Brokers have reported this as the highest per-square-foot sales price for a major property in the citys commercial real estate market. The transactio 