6657 South Knox Avenue, Chicago
technical data · neighborhood and transit
Quick answers
- Does 6657 South Knox Avenue have open permits or code violations?
- Chicago Department of Buildings lists 5 permits, 2 not closed, and 18 violations, 14 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 6657 South Knox Avenue at risk for?
- FEMA's National Risk Index rates the area relatively low overall, with elevated cold wave risk.
Permits and code violations
2 permits not closed out. Unfinished permits pass to the next owner. 14 open violations.
- Permit – express permit program Nov 2024Suspended
New detached wood frame garage. dimensions and setbacks per application. building outside dimensions: 21'-0' ' x20'-0' '. hip roof height to peak: 14'-0' '.
- Permit - renovation/alteration Oct 2017Complete
Deconverting existing 2 du to sfr. first and second story include new interior partitions, new electrical, mechanical and plumbing. erect upper floor addition, and new wood rear steps and porch. erect a detached 2-car private garage. existing use is a-2 multi-family; proposed use is a-1 single family residential.
- Permit – express permit program Oct 2016Complete
Total rehab 200 amp service 3 meters. also new garage.
- Permit – express permit program Sep 2012Complete
Upgrade electrical service to 200 amps
- Permit - easy permit process Jul 2008
Installation of 190 linear feet of 6' fense.
Chicago Department of Buildings
Safety and environment
FEMA natural hazard risk
Relatively Low
Highest for this area: cold wave. These drive insurance cost here.
FEMA National Risk Index, census tract
Leaking fuel tanks
2 within 1,650 ft
Nearest: Izzo, Anthony J., 6631 South Cicero Avenue (1,100 ft), no further action. Every release here is closed by the state regulator.
EPA UST Finder, leaking underground storage tank releases
Toxic release facility
2,650 ft
Jefferson Smurfit Corp and 12 more within a mile. Reports chemical releases to air, water or land to EPA each year.
EPA Toxics Release Inventory
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
500 ft
Azuela Elem School (500 ft), Lee Elem School (2,850 ft). Confirm the assigned school with the district.
U.S. Department of Education, NCES
Major airport
1.3 mi
Chicago Midway (MDW). Homes this close can sit inside the 65 dB DNL noise contour. Visit at peak hours and check the airport's noise map.
FAA large-hub airports
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
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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
More on South Knox Avenue
All addressesViewing 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.
- Look at the stairwell (cleanliness, smell) and the association's notice board: unpaid dues, conflicts, recent decisions.
- 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.
- Schedule a viewing on a weekday too, between 6:00 and 7:30 PM, the window when the building is busiest: neighbors, parking, elevator.
- Knock on a neighboring door and ask two things: what bothers them most often, and what work is planned for the building.
- 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.
Neighborhood recommendations are derived from public OpenStreetMap data and may be incomplete. Checking in person is still what matters most.
The year built, height regime, structure, and elevator for this address are being indexed right now, city by city. Save the page and check back: it fills in over time. If you live here, you can fill it in yourself in a minute by leaving a review.