Vestavia Hills, AL Building Setbacks & Zoning: Setback Rules (2026)

6 of the Zoning Ordinance lets a front yard setback shrink below the district minimum where neighboring houses already sit closer to the street. On an interior lot the reduced setback follows the average of the as-built setbacks on the two abutting lots; on a corner lot it follows the as-built setback of the abutting lot along the matching frontage. No side yard setback can be required in excess of twenty-five feet in any residential district, a ceiling the ordinance applies regardless of the underlying district table.

Corner lots carry an extra rule: in single-family districts the minimum front yard setback applies to both street frontages, not just the address frontage, except where the second frontage is an alley sixteen feet wide or narrower. The Building Official can approve a further one-foot reduction of a front, rear or side yard, provided no part of the building comes within three feet of the property line. Certain features are allowed to intrude into a required yard without violating the setback: roof overhangs up to three feet, never closer than three feet to the line; bay windows, chimneys and similar architectural features up to four feet, capped at ten percent of the wall length; and uncovered steps and stairs, which can encroach up to twenty-five percent into a front yard on a single-family or duplex lot. 4 rather than the principal-structure setback.