In mixed-use and occupancy buildings, what percentage of the floor area can aggregate accessory occupancies occupy?

In mixed-use and occupancy buildings, accessory occupancies refer to areas that are incidental to the primary function of the building. According to building codes, accessory occupancies can occupy a specified percentage of the total floor area of the building, allowing for flexibility in design and function while maintaining safety standards.

The correct percentage for the aggregate accessory occupancies is 10%. This limit ensures that the primary occupancy's safety and structural integrity are not compromised by the addition of accessory spaces. By maintaining this threshold, codes help manage risks such as fire or structural load considerations, ensuring that the building remains suitable for its main intended use while supporting additional amenity spaces.

While other percentages may reflect different scenarios or specific types of buildings, the establishment of 10% as a standard allows for a balanced approach between usability and compliance with safety regulations.