The City of Joliet regulates building heights through the Zoning Ordinance (Chapter 23). Height limits vary by zoning district. Residential zones generally limit principal structures to 35 feet, while accessory structures such as sheds cannot exceed 15 feet. Building height is measured from grade to the highest point of the roof.
Joliet's structure height limits are established in the Zoning Ordinance as part of the dimensional standards for each zoning district. In single-family residential zones, principal dwelling heights are generally limited to 35 feet or 2.5 stories, whichever is less restrictive. Multi-family and commercial zones may allow greater heights depending on the district. Accessory structures like detached sheds and garages have a maximum height of 15 feet. Height is typically measured from the average finished grade to the highest point of the roof structure. Chimneys, antennas, and similar projections may be exempt from height calculations to a limited extent. Variances for height exceptions can be sought through the Zoning Board of Appeals. Planned developments may negotiate different height limits through the approval process. The Community Development Department reviews all building permits for height compliance.
Structures exceeding the height limit for their zoning district without a variance may face stop-work orders, required modification, or removal of the non-conforming portions.
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See how Joliet's structure height limits rules stack up against other locations.
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