4050 N MASON AVE, Chicago, IL is a rental building in Portage Park, Chicago. See every violation, 311 complaint, tenant review, and the LucidIQ score — before you sign a lease.
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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 profileTop 5 by score · of 1913 total
ACRIS deeds and regulatory filings
Yard Waste Pick-Up Request — No details available
Rodent Baiting/Rat Complaint — No details available
DOB Violation — ARRANGE COMPLETED PERMIT INSP.
DOB Violation — REMOVE
DOB Violation — STOP WORK FOR PERMIT
DOB Violation — SUBMIT PLANS/GET VENT PERMIT
Portage Park · March 2026
Best & worst months to sign a lease
Potential savings: ~7% by timing your move to May.
Asking rent per bedroom type — switch tabs to see each with effective (concession-net) rent.
Portage Park is classic bungalow-belt Chicago — neat brick homes, the Portage Theater, and a commercial strip on Irving Park Road. It is affordable, family-oriented, and increasingly attractive to buyers priced out of Logan Square.