setback—¹ Offset. ² In zoning regulations, the distance a building must be set back from the front property line; the height at which the upper floors of a building are recessed, or set back, from the face of a lower structure. In tall buildings there may be more than one setback. See also line, setback.

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Source: NSPS “Definitions of Surveying and Related Terms“, used with permission.

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