The residence consists of two parts: the main building, containing all the principal living spaces and bedrooms, and an attached kitchen extension to the rear of the main block. Together these give the house a striking polychromy, in contrast to the painted wooden Victorian homes more common in Montclair during this period.
The interior first floor plan features a main entrance hall in the center with all other primary rooms grouped around it. The other rooms that spin off this hall each displays a unique shape and character. Partly due to Shultz’s fear of fire, the interior walls on the first floor are masonry, which in turn is a combination of brick and rough granite stone. The upper floors, back staircase, and kitchen are wood frame with a stucco and half-timber finish. All visible timber is chestnut.
The first floor and stairwell in the main building feature elaborate windows. The library, for example, features two tall windows in the southeast comer of the room, which operate by the lower sash sliding up into the wall and a pair of leaded casement windows, set into an exterior brick arched window surround. The main stairway is graced by bands of decorative leaded windows at each of the two stair landings. More conventional, less ornate windows are used in the kitchen and servants wing. Despite the many windows that provided adequate ventilation, the house remained relatively dark. The dark wall coverings, the Oriental and Persian rugs, combined with the heavy, dark-colored drapery and wooden venetian blinds, maintained a predominant darkness throughout the house, which was the style of the day.
Due to Shultz’s fascination with science, Evergreens incorporates what was at the time state-of-the-art technology. It was built with gas/electric lighting fixtures, an electric burglar alarm, an enunciator system, an elevator, an advanced gravity hot air heating system, the latest plumbing, and an icebox that could be supplied with ice from the outside without entering the house. While he was eager to incorporate the latest technology, Shultz was also methodical and prudent, characteristics which also helped to shape the design of his house. Contingencies and safety measures were built into the house. Rather than be entirely dependent on electricity, combination gas/electric fixtures were installed in case the electrical system, still in its fledgling state, should fail.