The foyer, showcasing formal beauty and classical references, opens up an intricate wooden staircase centered in the core of Casa Carlucci. The floor is covered in Portuguese ceramic tiles that frame the room. The many different hues represented in these tiles not only connect to Portuguese history and its relationship to the United States (US), but create beautiful contrast against the yellow walls. Limestone moldings frame each entrance and window, while additional plaster moldings ornament the walls and artwork. The ornamentation within the classical moldings signify intellect, artistic skill, and refined elegance. An intricately designed ceiling invites visual contemplation, while Neoclassical characteristics introduce the architectural history of the building.

There are a few symbolic pieces in the foyer that have been recognized as cultural heritage assets by the Department of State and Casa Carlucci: a set of crystal wall sconces, a crystal chandelier with swan neck arms, and a 17th-century oak chair which has been restored and retains its original integrity.