This example of Gothic Revival architecture is particularly noteworthy for its exterior trim details. Typically, the gable ends, at the edges, feature curvilinear (or gingerbread-type) vergeboards in residential Gothic Revival styled buildings. The Lake–Peterson House has simple pointed arches with ornamented pendants. The windows are also somewhat unusual in their variety. Three of the home's four sides have bay windows and other windows are topped by limestone hood molds. The windows themselves show differing forms as well, including the double-hung sash windows on the second floor and the diamond-paned windows with colored glass in the sitting room.