Chicago

333 East Ontario Street, Chicago

Apartment building

technical data · neighborhood and transit

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Quick answers

Does 333 East Ontario Street have open permits or code violations?
Chicago Department of Buildings lists 60 permits, 41 not closed, and 60 violations, 23 open.
What is the 2026 conforming loan limit in Cook County?
$832,750 for a single-unit home, per FHFA. Larger loans are jumbo loans.
Is radon a problem here?
EPA radon zone 2, moderate potential.
What natural disasters is 333 East Ontario Street at risk for?
FEMA's National Risk Index rates the area relatively high overall, with elevated tornado and heat wave risk.

Permits and code violations

41 permits not closed out. Unfinished permits pass to the next owner. 23 open violations.

  1. Permit – express permit program Sep 2026Active

    Temporary scaffolding: qty: 1, max. length: 30 ft., max. height: 400 ft. location: north and east elevations. permit expiration date: 365 days from permit issued date this permit is not valid without corresponding cdot public way permit.

  2. Permit – express permit program Aug 2026Active

    Scope: roof replacement. area: 6000 sq. ft. roof covering: built-up roof. location: new 60 mil to roof system. il roofing contractor license: 104016916.

  3. Permit - signs Jul 2026

    Pilatesville llcnew electrical id wall signlocation: south elevationsign facing: ontario st.reads: pilatesville

  4. Permit - elevator equipment Jun 2026

    Water damage repair on eg passenger elevator car 3b, 2000lbs capacity, 45 floors, subject to city of chicago dept. of buildings elevator bureau inspection (ev005114). note: scope of work to be on site at time of inspection.

  5. Permit - elevator equipment Jun 2026

    Water damage repair on eg passenger elevator car 5b, 2000lbs capacity, 45 floors, subject to city of chicago dept. of buildings elevator bureau inspection (ev005114). note: scope of work to be on site at time of inspection.

  6. Permit - elevator equipment Jun 2026

    Water damage repair on eg passenger elevator car 2b, 2500lbs capacity, 46 floors, subject to city of chicago dept. of buildings elevator bureau inspection (ev005114). note: scope of work to be on site at time of inspection.

  7. Permit - elevator equipment Jun 2026

    Water damage repair on eg passenger elevator car 1b, 2500lbs capacity, 46 floors, subject to city of chicago dept. of buildings elevator bureau inspection (ev005114).

  8. Permit - elevator equipment Jun 2026

    Water damage repair on eg passenger elevator car 4b, 2000lbs capacity, 45 floors, subject to city of chicago dept. of buildings elevator bureau inspection (ev005114). note: scope of work to be on site at time of inspection.

  9. Permit - easy permit process Mar 2023

    Remove and replace 600 fan coil units and associated piping. final phase

  10. Permit - signs Jul 2022

    Install led illuminated channel letter on north elevation canopy.

  11. Permit - signs Jul 2022

    Install led illuminated channel letter on east elevation canopy.

  12. Permit - signs Jul 2022

    Install led illuminated channel letter set on north east corner of building wall.

Chicago Department of Buildings

Safety and environment

FEMA natural hazard risk

Relatively High

Highest for this area: tornado, heat wave, cold wave, winter weather. These drive insurance cost here.

FEMA National Risk Index, census tract

Leaking fuel tanks

17 within 1,650 ft

Nearest: Days Inn Hotel At Chicago, Former, 644 North Lake Shore Drive (950 ft), open. 1 still open. Ask whether groundwater or soil vapor testing was done.

EPA UST Finder, leaking underground storage tank releases

Brownfield site

650 ft

Chicago Hometown Award Boathouse Project and 1 more within half a mile. Former industrial land in EPA's cleanup and reuse program.

EPA ACRES Brownfields

Radon potential

Moderate

Average indoor levels of 2 to 4 pCi/L. EPA still suggests testing ground-floor and basement units.

EPA and USGS Geologic Radon Potential Map

Nearest public schools

3,800 ft

Ogden Elem School (3,800 ft), YCCS-Innovations of Arts Integr (4,550 ft), Noble St Chtr-Muchin College Prep (4,600 ft). Confirm the assigned school with the district.

U.S. Department of Education, NCES

Sinkhole-prone ground

Limestone karst

The bedrock here (dolostone (dolomite), Silurian) can dissolve and open sinkholes. Ask for a geotechnical report and check whether sinkhole coverage is in the insurance policy.

USGS Karst in the United States (OFR 2014-1156)

Conforming loan limit 2026

$832,750

Cook County. Mortgages up to this amount qualify for Fannie Mae and Freddie Mac pricing. Above it, the loan is a jumbo with stricter terms.

FHFA Conforming Loan Limit Values, one-unit

Sunlight

How the sun hits 333 East Ontario Street, Chicago

Building typeApartment building

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How much it costs to live here

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Who lives and works in Chicago

Trading floors, logistics and the deepest architecture stock in America

Chicago carries a full corporate economy at a price the coasts do not match. Neighborhoods are distinct and walkable, two and three flats are everywhere, and the Loop still sets the commute for finance, law and consulting.

$71,673
median household income
18.9%
residents aged 25 to 34
45%
households that own their home

What pays the bills

  • Finance and trading
  • Logistics and rail
  • Law and consulting
  • Healthcare
  • Manufacturing

Who anchors the economy

CME Group · Boeing suppliers · University of Chicago · Northwestern Medicine · United Airlines

The market is shaped around

  • Young professionals
  • Families buying space
  • Two and three flat owners
Read the Chicago city report →

More on East Ontario Street

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Viewing recommendations

What's worth checking in person before deciding.

  • Test water pressure and temperature at the tap, in the bathroom and kitchen, for at least a minute.
  • Ask specifically where you'd park: is there paid city parking, who currently holds it, what the permit costs, and how long the waitlist is.
  • Knock on a neighboring door and ask two things: what bothers them most often, and what work is planned for the building.
  • Schedule a viewing on a weekday too, between 6:00 and 7:30 PM, the window when the building is busiest: neighbors, parking, elevator.
  • Ask for the latest maintenance bill from a winter month, not a summer one: that's where the real cost of living there shows up.
  • Look at the stairwell (cleanliness, smell) and the association's notice board: unpaid dues, conflicts, recent decisions.

Neighborhood recommendations are derived from public OpenStreetMap data and may be incomplete. Checking in person is still what matters most.