Single Family Home for sale by owner in Pentwater, MI 49449. This is a unique custom built Octogon home that is situated less than one mile outside the beautiful town of Pentwater, Michigan. This area is an outdoor lovers paradise., with Pentwater Lake and Lake Michigan only minuts away. You can enjoy going to the beach, fishing, boating, shopping , camping, hicking, and so much more. The house features a full wrap-around style deck, an out building storage shed and sits on 1+acher of fenced in ... See site for full property details.