Orient Square is a proposed $400 million project on Main Street, in the City of Santa Ana.  Its backers say it will be Orange County's first true mixed-use development.  The property will include offices, a 350 room hotel, retail, 4 cinemas, sports club, two office towers, and 456 condominiums plus a monorail system.

Main Street is to be the focal point of a theme square, seen as a center for community and cultural affairs.