A fixed line on a property marking the distance beyond which no building construction/improvement may occur.

Definition A specified distance from the sides of a lot that denote where a building cannot be placed. Building lines are often called setbacks, because a building must be "set back" a speci [..]

A building line means a designated line drawn along the edge of a municipality’s sidewalk beyond which a building cannot extend. It helps to maintain a uniform appearance and prevents buildings from b [..]

A line, parallel to a lot line, creating an area into which a structure must not project. A building line may be established that is more restrictive than the minimum setback required for structures i [..]