CMC Title 1400 Hillside Overlay District protects Cincinnati's seven hills and steep slopes through stricter grading, vegetation, and structural standards designed to prevent landslides above Mill Creek and Ohio River valleys.
Cincinnati's distinctive topography of forested hillsides over the Ohio River and Mill Creek valley is regulated through the Hillside Overlay District in CMC Title 1400. The overlay applies to slopes generally exceeding 20% gradient and adds requirements beyond underlying zoning. Permitted disturbance areas are limited, vegetation removal is regulated to protect slope stability, and engineered drainage and retention plans must be submitted. Geotechnical reports may be required for new construction, additions, and significant grading. The overlay coordinates with Title 75 tree protection and citywide stormwater rules to maintain canopy cover. Buildings and Inspections, Planning, and Stormwater Management Utility jointly review hillside projects.
Working without hillside permits, exceeding clearing limits, or destabilizing slopes can trigger stop-work orders, fines, restoration orders, and personal liability for slope failures damaging neighbors.
Cincinnati, OH
The Cincinnati Park Board regulates street trees in the public right-of-way under CMC Title 75, requiring permits for planting, pruning, or removal of trees ...
Cincinnati, OH
Cincinnati requires grading permits for earthwork and land-disturbing activities through its building code under Title XI. Projects must maintain drainage pa...
See how Cincinnati's hillside overlay rules rules stack up against other locations.
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