The house was designated a National Historic Landmark for its architecture, and for the completeness of the documentary record accompanying its construction and alteration.

It is a three-story masonry structure, built out of salmon-colored Philadelphia pressed brick with sandstone trim and a truncated hip roof.

The center entrance is sheltered by a stone portico with rounded arches supported by granite columns with Corinthian capitals.

[5][6] The dining room was hung with part-gilded embossed panels imitating the "Spanish" leather hangings that were popular in Holland and England in the sixteenth and early seventeenth centuries.

The museum also acquired a complete set of bills and records for the house's construction, decoration, and alteration.