Orange County Convention Center Phase III Expansion


Orange County Board of County Commissioners


Construction Cost
$172 million

Completion Date

Project Size
1.9 million SF expansion

Orange County Convention Center Phase III Expansion


Walter P Moore provided complete structural engineering for the Phase III expansion of the Orange County Convention Center. The facility is constructed of structural steel and reinforced, cast-in-place concrete with a long-span steel roof and concrete floors. 1 million SF of new exhibit hall, meeting rooms, lobbies, food service and administrative areas and support/mechanical areas were added. Other components of the addition include a 2,500 seat auditorium, a 60,000 SF ballroom, a business center, and a plaza.

The Orange County Convention Center has enjoyed remarkable success since its opening in 1983. Since 1984, the facility has operated at capacity and future bookings indicated a strong demand for the facility through the year 2005. The Center is host to various types of meetings including conventions, trade shows, assemblies and consumer shows.