343 E ONTARIO ST, Chicago, IL, 60611 is a rental building in Streeterville, Chicago. See every violation, 311 complaint, tenant review, and the LucidIQ score — before you sign a lease.
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Chicago · March 2026
Best & worst months to sign a lease
Potential savings: ~8% by timing your move to March.
Monthly counts over the last 7 years · all data sources
No HPD records on file in the last 7 years.
Asking rent per bedroom type — switch tabs to see each with effective (concession-net) rent.
Streeterville occupies prime real estate between Michigan Ave and the lakefront — Northwestern's downtown campus, Navy Pier, and the Magnificent Mile are your neighbors. Expect high-rise living with lake views and tourist crowds.