It is designed as an old and ornate 14-story building with a white concrete facade. The building appears to be based on the Foreman & Clark Building in Downtown Los Angeles. It cannot be entered and plays no role in the storyline.
- Callisto Apartments is almost identical to an unnamed office building in Downtown Los Santos, located at the intersection of San Andreas Avenue and Power Street. While this building is an exact replica of the Foreman & Clark Building, the Callisto Apartments is broader than its real-life counterpart. The Little Gems Jewelry building in Mission Row is also similar in design to the apartment complex.