400 W ONTARIO ST is a rental building in River North, Chicago. Owned by JAKE J CHAPUT, managed by Fulton Grace Realty. Public records show 32 open violations, 4 311 complaints on file.
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.
Monthly counts over the last 7 years · all data sources
No HPD records on file in the last 7 years.
Portfolio-level grade reflects the landlord's buildings across the city, weighted by unit count. Individual building grades may differ.
View full landlord profileACRIS deeds and regulatory filings
Divvy Bike Parking Complaint — No details available
DOB Violation — MAINTAIN OR REPAIR ELECT ELEVA
DOB Violation — MAINTAIN EXIT SIGN ILLUMINATED
DOB Violation — REPAIR INTERIOR STAIR SYSTEM
DOB Violation — DEBRIS, EXCESSIVE
Street Light Out Complaint — No details available
DOB Violation — MAINTAIN OR REPAIR ELECT ELEVA
DOB Violation — FIRE EXTNGSHR RECHARGE & TAG
DOB Violation — 2 HOUR BOILER ENCLOSURE
DOB Violation — 1HR ENCL FLR TO FLR SHAFT/DUCT