The San Diego Convention Center Corp. has secured an adjacent six acres for a major expansion of the facility. This week, the Unified Port of San Diego authorized the transfer of the land for the long-awaited project. The SDCCC reported it has turned away 381 events in recent years due to the lack of adequate space or available dates and estimated that the expansion will allow the center to accommodate 89 percent of that lost business. The addition, to cost $752.7 million, will comprise a total of 1,266,719 square feet, including 200,000 square feet of exhibit space, 100,000 square feet of meeting rooms, 80,000 square feet of ballrooms and 40,000 square feet of retail shops. Completion is aimed for 2015.