DC-12 Downtown Core District

Downtown Core — the highest-intensity downtown district for high-rise offices and apartments. Height is set through Planned Development review.

Example on a 120 × 200 ft lot. The dashed box is the maximum zoning envelope, the buildable footprint after setbacks, raised to the §17-8-0512 Planned Development height threshold (330 ft). The solid building is an illustrative example at FAR 12: covering the full footprint reaches only ~12 stories before the floor-area cap binds, so a taller building needs a smaller floor plate. Downtown massing steps a slender tower back from the street, spending its floor area on height rather than coverage.

Specifications

Zoning Ordinance reference
§17-4-0100
View in the Chicago Zoning Ordinance
Floor area ratio (FAR)
12
Maximum building height
No fixed limit; tall buildings require Planned Development review and height is negotiated with the Department of Planning & Development. §17-8-0512.
Lot area per unit (density)
115 sq ft of lot area per dwelling unit. 75 sq ft per efficiency unit; 60 sq ft per SRO unit.
Minimum lot area
Rear yard open space
On-site open space
Parking requirements
Downtown districts set their own parking standard rather than the §17-10-0207 residential ratio.

Setbacks

Front yard
None required.
Side yard
None required.
Rear yard
None required.

Allowed Uses

Curated from the §17-4-0207 use table. P = permitted by-right; S = special-use approval required. Always confirm against the full ordinance text.

Permitted by-right
  • Household living (dwelling units, multi-unit, townhouse, two-flat)
  • Group living (assisted living, nursing home, community homes)
  • Cultural exhibits & libraries
  • Parks & recreation
  • Office
  • Eating & drinking establishments
  • Food/beverage retail & general retail
  • Financial services
  • Personal service
  • Medical service
  • Entertainment & spectator sports
Special use
  • Adult use
  • Hospital
  • Religious assembly
  • Drive-through facility
  • Animal services
  • Major utilities & services
  • Manufacturing / industrial service (limited)
  • Warehousing / freight (limited)
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Related DC districts

Reference figures are modeled from the Chicago Zoning Ordinance (Title 17) for general guidance and do not constitute zoning or legal advice. Lot-specific limits depend on frontage, depth, adjacencies and overlays — analyze a specific address for exact figures. Always confirm against the official ordinance.