Joseph Leopold Eichler (June 25, 1900 – July 1, 1974) was a 20th-century post-war U.S. American real estate developer known for developing distinctive residential subdivisions of Mid-Century modern style tract housing in California, United States. He was one of the influential advocates of bringing modern architecture from custom residences and large corporate buildings to general public availability. His company and developments remain in the Greater San Francisco Bay Area and Greater Los Angeles.
Between 1949 and 1966, Joseph Eichler's company, Eichler Homes, built over 11,000 homes in nine communities in Northern California and homes in three communities in Southern California. Later, other firms worked with Eichler's company to build similar houses. Together, they all came to be known as Eichlers. During this period, Eichler became one of the nation's most influential builders of modern homes. The largest contiguous Eichler Homes development is "The Highlands" in San Mateo, built between 1956 and 1964.
Joseph Eichler is considered by some to be a social visionary and commissioned designs primarily for middle-class Americans. One of his stated aims was to construct inclusive and diverse planned communities, ideally featuring integrated parks and community centers. Eichler established a non-discrimination policy and offered homes for sale to anyone of any religion or race. In 1958, he resigned from the National Association of Home Builders when they refused to support a non-discrimination policy.