Final answer:
Duplex, triplex, or fourplex residences are multi-family residential units that are essential in accommodating diverse community housing needs and are significant in community needs assessments.
Step-by-step explanation:
Duplex, triplex, or fourplex residences are all considered multi-family residential units. These types of housing are characterized by having multiple, separate living units within a single building. A duplex consists of two units, a triplex has three, and a fourplex contains four individual units.
These residences are often used in community planning to accommodate population density and provide housing options that can suit diverse needs within a community.
With the increase in urbanization, such multi-family dwellings are becoming an integral part of resolving housing shortages and can be vital in a community needs assessment to identify different demographic and economic groups that can be served by this type of housing.