What is Downzoning? Zoning Definition

Downzoning is a rezoning action that decreases the development potential of a property or area. This could mean reducing the number of housing units allowed per acre, lowering the maximum building height, increasing minimum lot sizes, or changing a parcel from commercial to residential use. The result is that the property can be developed less intensely than before.

Local governments may pursue downzoning for a variety of reasons: to preserve neighborhood character, protect environmental resources, limit traffic congestion, or align zoning with a newly adopted comprehensive plan. For example, a city might downzone an area near a sensitive waterway from high-density apartment zoning to low-density single-family to reduce runoff and impervious surface coverage.

Downzoning is often controversial because it can reduce property values by limiting what an owner can build. Property owners may argue that downzoning constitutes a regulatory "taking" that requires compensation under the Fifth Amendment. Courts generally allow downzoning as a valid exercise of the police power, but a successful takings claim is possible if the downzoning eliminates virtually all economic use of the property.

If your property is subject to a proposed downzoning, pay close attention to public hearings and comment periods. You may be able to negotiate conditions, seek grandfathering of existing development rights, or challenge the action if it is not supported by the comprehensive plan.