Dallas County does not establish historic preservation overlay zones. Historic district designations and rules exist at the city level. Dallas, Highland Park, and University Park each maintain their own historic districts and review boards.
Texas counties generally lack zoning authority and cannot create local historic districts. Historic preservation overlay zones in the Dallas region are city programs. The City of Dallas designates Historic Districts under Chapter 51A of the Development Code, with the Landmark Commission reviewing exterior changes in districts like Swiss Avenue, State-Thomas, and Munger Place. Highland Park and University Park run their own historic preservation programs. National Register listings (federal) cover many county properties but impose no design controls. Dallas County itself owns historic properties such as the Old Red Courthouse, managed under separate stewardship. Property owners should check city designation before exterior renovations.
County cannot enforce district rules. City violations under Dallas Chapter 51A: stop work order, fines up to $2,000 daily, and required restoration to historic condition.
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