High-rise Loop office buildings. Also covers downtown stores, entertainment, and civic buildings. Allows residential buildings.
|Zoning Ordinance reference||
Open the Chicago Zoning Ordinance (PDF)
|Floor area ratio||12|
|Maximum building height||None, but buildings taller than city's "building height thresholds" require Planned Development review.|
|Lot area per unit (density)||115 sq ft/dwelling unit, 75 sq ft/efficiency unit, 60 sq ft/SRO unit|
|Minimum lot area|
|On-site open space||All buildings with people living in them must have at least 36 sq ft of on-site open space per dwelling unit. (See 17-4-0410-A)|