Zoning Glossary

R-3 Zoning

R-3 zoning allows multi-family residential development — typically apartment buildings, condominiums, and townhome clusters with three or more units — representing a significant increase in allowable density from two-family zones. The transition to R-3 generally permits taller buildings, smaller minimum lot areas per dwelling unit, and higher lot coverage than lower-density residential zones. Development standards in R-3 zones are calibrated to accommodate the larger building footprints and greater residential intensity of multi-family construction.

Zoning

In Practice

A property in an R-3 zone may support apartment buildings or other multi-family structures, with the actual unit count determined by the zone's density controls, floor-area-ratio limits, setbacks, and height maximums. R-3 zones are common in urban neighborhoods that transitioned from single-family to apartment stock in the mid-twentieth century. If you own or are evaluating an R-3 parcel, review the city's development standards table for the zone to understand the density potential and design requirements applicable to your intended project.

Related Terms

Related Guides

Source: PropertyZoned Zoning Guide — Understanding Residential Zoning: R-1, R-2, R-3, R-4 Explained. Last verified April 5, 2026.

Last updated: April 5, 2026
R-3 Zoning — Zoning Term Definition | PropertyZoned