The original slave quarters at the Bellamy site is a two-story brick building at the northeast corner of the lot, constructed by free and enslaved laborers in 1859. Though now rare, this one-room-deep, two-story form was once typical of urban slave quarters throughout the United States, but many such buildings were later converted to other uses, allowed to deteriorate, or demolished after the Civil War. It was the first building completed on the site, because Dr. John D. Bellamy was legally required to feed, clothe, and shelter enslaved workers he contracted, or "hired out," to help build the mansion. Between 1859 and early 1861, enslaved carpenters, plasterers, masons, and other artisans were likely its only inhabitants. When the Bellamy family moved into the mansion in February 1861, their enslaved domestic workers moved into these quarters. The first floor had one sleeping chamber, a laundry room, and two privies, while the second floor had three more sleeping chambers. In 1861, the occupants included Rosella Bellamy, Harriett and Charlotte Potter, Mary Ann Nixon, Sarah, Joan, Caroline, and an unnamed one-year-old girl; Guy Nixon, the enslaved coachman and butler, may have slept in the original carriage house. Sarah worked as cook and housekeeper, Rosella as laundress, Joan as nanny for the Bellamy children, Mary Ann likely assisted the older enslaved women, and Caroline, Joan's young daughter, served as Mrs. Bellamy's maid. Harriett and Charlotte were likely Rosella's children. Awakened each day by the market house bell at 5 am, the women and girls began work immediately: Sarah went to the mansion kitchen, Mary Ann likely emptied the Bellamys' chamber pots into the privies, and Rosella stoked the fires in the laundry room and spent nearly all her waking hours on laundry for everyone on the site. After emancipation, Mary Ann was the only former enslaved worker known to remain with the Bellamy family as a paid servant, living in the building in 1870 as a twenty-four-year-old house servant. The quarters later housed black renters and servants through the late 1930s, and after a multi-year restoration, the building's restoration was completed in 2014.