This is a list of historic country estates in Lake County, Ohio built between the years 1895 and 1930. Around 1885 the city of Cleveland, Ohio was home to an estimated 70 millionaires. While, at the same time, within three mile radius of the city of Willoughby in neighboring Lake Co. there were none, however, by 1918 there were then over 30 millionaires using large estates as their summer homes. This wave of wealthy families migrating out to Lake County had many causes. As James Borchert wrote in the Encyclopedia of Cleveland History