Buena Park Business Complex Buena Park Business Complex, a 95,216 square foot multi-tenant industrial park in Buena Park, CA. Available space for Lease from 440 sf. - 9,870 sf. (Flex space: 1,606 sf./ 1,900 sf./ 2,145 sf.). The six-building business park. Features Skylights, Foil Insulation and Central air conditioned/heated offices. Space Clearance Height Minimum: +/- 16 to 21 feet (depending on building and suite. Fire Sprinkler. Easy access to 91, 5 and 605 freeways. It is located close to the 91 Freeway/Orangethorpe Avenue four-way interchange in the highly regarded North Orange County submarket.