Setback

The minimum required distance between a building or structure and a property line, street, or other reference point, as specified by the zoning code.

What is a Setback?

A setback is the minimum distance that a building or structure must be set back from a property line, street right-of-way, easement, or other reference point. Setback requirements are established in the zoning code and vary by zoning district, property line location (front, side, rear), and sometimes by building height or use.

Types of Setbacks

Most zoning codes define front setbacks (from the street), side setbacks (from adjacent properties), and rear setbacks (from the back property line). Some jurisdictions also impose corner side setbacks for corner lots, interior setbacks between buildings on the same lot, and waterfront setbacks from bodies of water. Setback requirements are typically measured from the property line to the nearest point of the building.

Why Setbacks Matter

Setbacks serve multiple purposes: they ensure adequate light and air between buildings, maintain visual character along streetscapes, provide space for landscaping and utilities, and create separation between incompatible uses. For developers, setbacks directly constrain the buildable area of a lot — a key factor in determining the maximum size and configuration of a project.

Setback Relief

When a project cannot comply with required setbacks due to lot constraints, the developer may seek a variance or apply for an exception under the zoning code. Some jurisdictions allow reduced setbacks for specific conditions, such as lots below a minimum width or buildings that incorporate stepbacks at upper floors.