The building has been expanded several times with additions that echo the original materials and forms of the building but lack much of the ornamentation and detailing of the original section of the building. An addition built in 1964 to the southeast of the building is taller than the original structure, standing five stories tall, and matching the buff brick cladding and curved corners of the original building on the front, but with simpler details, with less complex canopies, less variety of trim, and a boxier overall form. The interior of the building has been fully modernized and renovated,

In 1998, after the Quisling Clinic had closed, the building was threatened by demolition for a new building but was saved by a local developer, who converted the clinic in a historic preservation adaptive reuse project into affordable housing for people making below area median income. The renovation fully reconfigured and altered the interior, which had been renovated multiple times since the 1940s, leaving very few historic character-defining features, but has allowed for full preservation of the exterior of the building. Window openings on the rear and side facades were enlarged to add small balconies outside many of the apartment units.