What does the term 'Mixed Occupancy' refer to in building codes?

The term 'Mixed Occupancy' refers to a building or area that includes two or more different types of occupancies. This can often include combinations of residential, commercial, industrial, and assembly spaces within a single structure. The defining characteristic of mixed occupancy is that various activities carried out in different areas may have distinct safety and structural requirements under building codes.

Understanding mixed occupancy is crucial for fire and emergency services because each occupancy type presents different risks and may necessitate specialized fire protection strategies. For example, a building that is both a restaurant and an apartment complex must comply with regulations that address the specific needs and hazards of both settings, ensuring proper emergency access and evacuation routes are available.

The other options do not accurately describe mixed occupancy. A building with only one occupancy type does not involve multiple occupancies at all. A building designed solely for residential use does not reflect the varied purposes seen in mixed occupancy buildings. Lastly, while certain occupancy types may require special fire barriers, this concept applies across various occupancies and is not exclusive to mixed occupancies.