420 W ONTARIO ST, Chicago, IL is a rental building in River North, Chicago. See every violation, 311 complaint, tenant review, and the LucidIQ score — before you sign a lease.
Portfolio-level grade reflects the landlord's buildings across the city, weighted by unit count. Individual building grades may differ.
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Monthly counts over the last 7 years · all data sources
No HPD records on file in the last 7 years.
DOB Violation — MAINTAIN OR REPAIR HYDRO ELEVA
DOB Violation — ARRANGE PREMISE INSPECTION
DOB Violation — MAINTAIN EXIT SIGN ILLUMINATED
DOB Violation — REPAIR BALCONY
DOB Violation — ARRANGE FOR REINSPECTION REGAR
DOB Violation — INSTALL ILLUMINATION
DOB Violation — UNAPPROVED EM
DOB Violation — OPEN TYPE VIOLATION
DOB Violation — OPEN TYPE VIOLATION
DOB Violation — OPEN TYPE VIOLATION
River North · March 2026
Best & worst months to sign a lease
Potential savings: ~19% by timing your move to June.
Asking rent per bedroom type — switch tabs to see each with effective (concession-net) rent.
River North is Chicago's gallery district turned nightlife and dining powerhouse — converted warehouses, rooftop bars, and some of the city's most energetic weekend scenes. It's loud, fun, and unapologetically expensive.