A setback is a zoning term for the “distance required from nearest point of a wall of the structure to a property line." The City of Irving does not allow any structure to be built in the setback; driveways, flatwork, and similar items are excluded.
A utility easement is “a grant by the property owner of the use of a designated portion of land by the public, individuals, groups, or corporations for specific purposes.” All newer subdivision developments have utility easements clearly delineated on the plat maps. The intent of easements is to allow utility companies sufficient room to build and service their infrastructure (phone lines, cable, natural gas, water, sewer, and electricity).
The City of Irving does not allow any permanent structure, including garages, decks, pools and sheds, to be built on top of any easements.