Coastal and Floodplain Construction Inspector's Practice Exam

What is a specific characteristic of residential Group R-3 buildings?

1. Contain more than 4 dwelling units

2. Occupants are primarily temporary in nature

3. Do not contain more than 2 dwelling units

4. Used for mixed commercial purposes

The correct answer is: Do not contain more than 2 dwelling units

Residential Group R-3 buildings are specifically defined within the structure of building codes, particularly in the context of occupancy classifications. A defining characteristic of this group is that it encompasses one- and two-family homes and other types of residential structures that do not exceed two dwelling units. This classification is intended for buildings that house permanent residents, which differentiates it from other categories that include multiple family units or commercial use. The distinction of having no more than two dwelling units makes Group R-3 appropriate for small residential scenarios, ensuring that the focus remains on domestic living rather than mixed-use or transient accommodations. This allows for simpler construction requirements and helps maintain a certain standard specific to smaller-scale residential living. When categorizing buildings, it is essential to be aware of these limitations and definitions to ensure compliance with local building codes and regulations.