What do Group D buildings need for their height in relation to occupancy restrictions?

Group D buildings, which typically refer to residential buildings such as apartment complexes or condominiums, must adhere to specific height restrictions based on occupancy regulations. The relevant building codes stipulate that if a Group D building is occupied, it cannot exceed six stories in height without meeting particular safety requirements. This limitation helps ensure occupant safety and manage risks associated with evacuation, fire safety, structural integrity, and accessibility.

The reasoning behind this height restriction is multifaceted, involving considerations for fire safety and emergency response capabilities. As buildings increase in height, the complexities of egress, fire suppression, and emergency access also escalate. Therefore, having a maximum height of six stories helps to standardize safety protocols and ensures that the building remains within manageable limits for emergency services.

The other options suggest various criteria for Group D buildings, but they either misstate the conditions set by the building codes or fail to accurately capture the limit set for occupancy restrictions. These alternatives could lead to confusion regarding acceptable heights or the requirements about sprinklers, which only apply under certain conditions when a building is taller than specified limits.