Which term refers to a large tract of land that combines residential single-family use with other uses such as multi-family, condos, apartments, commercial, or light industrial, with a portion reserved for common usage?

• A. Cluster zoning
• B. Planned Unit Development (PUD) / cluster zoning
• C. Development of regional impact
• D. Health ordinances

Answer: (B)

A Planned Unit Development describes a master-planned, mixed-use community built on a large tract of land that blends single-family residential with other uses, such as multi-family housing, condos, apartments, commercial spaces, or light industrial areas, while setting aside a portion of the site for common facilities. This approach tightens the design around a cohesive plan rather than treating each parcel separately, so it can combine different housing types with shared open space, parks, recreational amenities, and sometimes on-site commercial uses. The master plan governs how these elements fit together, often allowing flexible lot sizes, building types, and density to achieve a desirable, integrated community with maintained common areas.

This concept differs from health ordinances, which regulate health-related rules rather than how land is developed, and from development of regional impact, which is about evaluating the broader effects of a large project on a region. While cluster zoning can be a tool used within a PUD to preserve open space by concentrating development, the description given aligns most closely with a Planned Unit Development.