Final answer:
Inclusionary zoning is an ordinance that requires builders to allocate a certain number of units for low- to moderate-income individuals. It promotes affordable housing and diversity in communities.
Step-by-step explanation:
An ordinance that requires a builder of new residential housing to set aside a designated number of units for low- to moderate-income people is known as inclusionary zoning. Inclusionary zoning is a policy that aims to promote affordable housing and prevent the exclusion of low- and moderate-income individuals and families from certain neighborhoods. Through inclusionary zoning, local governments can address issues of housing inequality and create more diverse and inclusive communities.