Some of the country's most noteable architects helped create the Polk County places including Bird & Rawson Proudfoot, Bird and Rawson Proudfoot, Nourse & Rasmussen Liebbe, William H. Brererton, Liebbe,Nourse,& Rasmussen, Smith & Gutterson, S.C. Wherry, Des Moines Rapid Transit Co., William Foster and Charles & Fred Weitz. Prominent architectural styles found in Polk Country are Colonial Revival, Early Commercial and Renaissance.