Much smaller in scale than the nearby Hogg House (
SA103), this white stucco Spanish Colonial Revival house includes a loggia situated on the south side facing the street, which is sheltered by a red tile roof supported on broad, round arches. The house's composition is hinged, with the single-story mass of the living room rotated toward the southeast that makes an awkward juncture with the projecting second-floor bay above the entrance. Climatic considerations relegated the stair to the rear of the house. Mannen was a businessman and the local manager of the National Cash Register Company.