The Waukee Planning and Zoning Commission on Tuesday approved the site plan for a proposed two-story medical office building planned by UnityPoint Health-Des Moines. The commission also approved the preliminary and final plats for the development, planned on 7 acres on the southeast corner of Grand Prairie Parkway and Southeast Tallgrass Lane on land owned by Knapp Properties. A UnityPoint primary health care clinic and specialty clinic would be located in the proposed 55,000-square-foot building, according to information provided the commission. The site plan also indicates there is space on the property to add a 20,000-square-foot expansion.