Charles F. Allardt was graduated in the Oakland High School and in 1888 was graduated in the University of California, with the degree of Mechanical Engineer. He then passed eighteen months in Honolulu, where he was in the employ of his maternal uncle, Charles Kluegel, the distinguished civil engineer who laid out all roads on the island of Hawaii. Upon his return to Oakland Mr. Allardt became associated in a professional way with the Hoag Manufacturing Company, and thereafter he maintained alliance about thirty years with the C. C. Moore Company, consulting engineers. For a time he was associated with the Hoe Press Company, for which he invented an automatic printing press for color printing, this press having won the gold medal, or first prize, when exhibited at the Panama-Pacific Exposition, in 1915. After engaging in business in an independent way Mr. Allardt designed the power plant of the street-car system of Redondo and also the power plant which operates the emergency fire system of Oakland.

Mr. Allardt was a staunch Democrat, his interests centered in his home and his business and the only fraternal organization with which he was identified was that of his university days, the Phi Delta Theta.