In the early 80’s, Jahn designed the Vacation House in Eagle River, Wisconsin. The house overlooks a little lake, the entry is located on the top floor of the house.  The house is a big cube designed to juxtapose with the natural surroundings. The cube is gridded inside and out at three-foot intervals. The color scheme represents the seasons: green represents spring and summer and the red is for autumn, and white represents winter.   

The house is a big cube designed to juxtapose with the natural surroundings. The cube is gridded inside and out at three-foot intervals. The color scheme represents the seasons: green represents spring and summer and the red is for autumn, and white represents winter.  There are irregular window patterns allows views of the lake and frames natural features. The stories in the vacation house are connected by a staircase that looks like a cage. The staircase appears to be at the center of the cube but is actually skewed from the center.