This illegal subgrade apartment was contaminated with mold, and caused severe health problems for the tenants.

Since this used to be basement storage space, there was no concern with ventilation during the conversion to a rental unit. Overhangs, a below ground location, obstructions to the entrance, animal cages, and a build up of clutter blocked almost all airflow, causing significant interior moisture. In addition to this, particulates stirred up due to constant construction in the backyard prevented the tenants from even trying to open windows.