The Koll Center Spectrum Office Parks I, II, and III are located on three distinct parcels totaling 31 acres. The projects consisted of more than 436,000 square-foot of office space within 28 separate buildings. Huitt-Zollars prepared preliminary engineering documents necessary for planning commission approval, plus preliminary grading, drainage and utility concepts, a preconstruction ALTA survey, and boundary surveys. Upon planning commission approval, Huitt-Zollars prepared final construction documents including rough grading plans, precise grading plans, on-site utility plans, off-site public utility connection plans, erosion control plans, water quality Storm Water Pollution Prevention Plans, lot line adjustments, and condominium plans.