At only 258 square feet (24 square meters), this apartment hardly seems large enough to serve as a comfortable home, but Schallert did an amazing job of designing the space to feel like it is immensely bigger than the square footage would suggest. Architect Barbara Appolloni handled the transformation of the apartment, as mentioned in the description of the YouTube video below, but it was Schallert who determined the distinctive aesthetic of the apartment.

Source: Man Shows Off Incredible Transformation Of 258-Square-Foot Apartment | SF Globe