 He was a lawyer in the San Francisco Bay Area from the late 19th to early 20th centuries who also was a major developer of real estate in the East Bay, particularly in the cities of Oakland, Berkeley and Piedmont.He built the four-story Havens Mansion in Piedmont on Wildwood Gardens, designed by architect Bernard Maybeck with interior by Louis Comfort Tiffany.Havens was a follower of Eastern philosophy and meditation and the mansion had an opium smoking bed in it and an inscription related to such philosophy.