In its first full year, the small facility, consisting of several one story cottages, admitted 3,000 patients and had an operating budget of $13,000.

During the late 1950s, the hospital experienced a severe shortage of beds, requiring administrators to enclose sun porches and convert clinic space to accommodate patients.

To alleviate the overflow of patients, the Suburban Hospital Association developed a master facility plan to construct three new wings over the next decade.

On February 7, 2008, Suburban Hospital unveiled its plans for the first major upgrade and enhancement of its facilities and campus in nearly 30 years.

The proposed improvements will be built on Suburban's existing campus at 8600 Old Georgetown Road, across from its key clinical partner, the National Institutes of Health (NIH).