Cincinnati, OH Zoning Overlays & Bonuses: Downtown Design Guide (2026)

Under § 1411-15, every building on a site shown on Map 1411-15's Zero Setback Overlay must be built with a facade at least 40 feet in height that abuts the public right-of-way, though rowhouses may set back up to ten feet and a recessed major entrance is allowed only if its width doesn't exceed ten percent of the facade length, its depth doesn't exceed its width, and it doesn't exceed 25 feet in height. Section 1411-17's Commercial Continuity Overlay requires at least 60 percent of first-floor building frontage in mapped locations to be devoted to commercial uses, with floor area within 12 feet of a walkway or atrium frontage reserved for lobbies.

Section 1411-21's Ground Floor Transparency standard requires at least 60 percent of exterior facades abutting a mapped sidewalk, and interior facades along the skywalk, to be transparent, defined as clear, non-reflecting glass between two and ten feet above walkway grade giving pedestrians an unobstructed view at least two feet into the building. These standards apply across the DD District's four subdistricts, Downtown Core, Downtown Residential, Downtown Support, and Riverfront, established under § 1411-03, and supersede conflicting underlying-district rules. Demolition is constrained too: § 1411-47 bars a demolition permit in the DD District unless the owner has already filed a building permit application to replace the structure, or posts a bond with the Director of Buildings and Inspections equal to ten dollars per square foot of the lot.

A lot left vacant more than 180 days after demolition must be landscaped like an urban park or garden and fenced under § 1411-51, and every vacant DD District lot must otherwise be kept clean and free of garbage, litter, standing water, and unauthorized parked vehicles under § 1411-49.