The Johnson house exhibits Waggaman's characteristic flat wall treatment in a style of architecture normally associated with a very robust three dimensionality, the Italian Baroque. Even the intricate wrought-iron balconies hug the planar walls more closely than one expects. The house's unusually tall proportions are emphasized by the high placement of the ground-story windows in relation to the simple arched entry and are increased by extension of the walls above the cornice line to encase the dormer windows. Naturalistic and stylized decorative details—brackets to carry the balconies, a floral swag above the door, and ornamented keystones and over-window sculpture on the second story—provide contrasting kinds of three-dimensional relief to enliven the smooth surfaces of the upended rectangular form.