Multifamily units can have different sizes, floor plans, and number of bedrooms and still meet which criterion?

Multifamily units can have different sizes, floor plans, and number of bedrooms and still meet which criterion?

• A. Uniform floor area.
• B. Identical unit layouts.
• C. Commonality.
• D. Equal number of bedrooms.

Answer: (C)

Commonality means that units in a multifamily building are linked by shared building features, so they can differ in size, floor plan, or number of bedrooms and still be treated as part of the same structure for the purpose of compliance. As long as the units share critical elements—such as exterior walls, the same structural frame, common plumbing and electrical systems, and access to shared spaces or corridors—they meet this criterion. The other options demand exact uniformity (same floor area), identical layouts, or the same number of bedrooms, which isn’t necessary for units to be considered under the commonality criterion.

Commonality means that units in a multifamily building are linked by shared building features, so they can differ in size, floor plan, or number of bedrooms and still be treated as part of the same structure for the purpose of compliance. As long as the units share critical elements—such as exterior walls, the same structural frame, common plumbing and electrical systems, and access to shared spaces or corridors—they meet this criterion. The other options demand exact uniformity (same floor area), identical layouts, or the same number of bedrooms, which isn’t necessary for units to be considered under the commonality criterion.