6420 South Vernon Avenue, Chicago
technical data · neighborhood and transit
Quick answers
- Does 6420 South Vernon Avenue have open permits or code violations?
- Chicago Department of Buildings lists 8 permits, 2 not closed, and 44 violations, 31 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 6420 South Vernon Avenue at risk for?
- FEMA's National Risk Index rates the area relatively low overall, with elevated tornado and heat wave risk.
Permits and code violations
2 permits not closed out. Unfinished permits pass to the next owner. 31 open violations.
- Permit - renovation/alteration Oct 2025Active
Spr 2019 cbc. interior alterations to exist three story masonry apartment building with basement (occupancy r-2, construction iiia). interior alteration include electrical, plumbing and hvac work. deconversion 8 du into 4 du. side one story brick addition to be removed. existing wood porch to remain. masonry repairs and tuckpointing as needed. repair existing brick garage as necessary. new three parking spaces. all work as as per plans.
- Permit – express permit program Jun 2025Complete
Line voltage electrical work. repair or alter devices on existing circuits. receptacle outlets: 36 . lighting outlets: 28. specific location: demo, elecrical disconect, drywal removal,.
- Permit - renovation/alteration Feb 2019Complete
Interior renovation of existing 3 story 8 dwelling units masonry apartment building. all work as per plans.
- Permit – express permit program Sep 2018Complete
Replace 200 amp service with a new 400 amp service and new breaker panels.
- Permit - easy permit process May 2014
Repair existing west retaining wall and stucco. all work non structural.
- Permit – express permit program Apr 2012Complete
Install system iii emergency lighting system, replace defective fixtures, provide hallway illumination, remove exposed wiring, install missing junction box covers, replace ungrounded receptacles, install additional receptacles as needed, install required gfci's in baths and kitchens, provide smoke and co detectors, fasten and support outlet and junction box.
- Permit – express permit program Jul 2007Complete
Remove and re-install existing electrical outlets and light fixtures located on rear porch, only.
- Permit - renovation/alteration May 2007Complete
Replace existing exterior rear porch as per plan
Chicago Department of Buildings
Safety and environment
FEMA natural hazard risk
Relatively Low
Highest for this area: tornado, heat wave, cold wave. These drive insurance cost here.
FEMA National Risk Index, census tract
Leaking fuel tanks
6 within 1,650 ft
Nearest: Chicago Dept. Of Env., 458 East 63rd St. (950 ft), open. 1 still open. Ask whether groundwater or soil vapor testing was done.
EPA UST Finder, leaking underground storage tank releases
Toxic release facility
2,900 ft
Ozinga Ready Mix Concrete Inc State St and 1 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
900 ft
Dulles Elem School (900 ft), YCCS-Progressive Leadership Acad (1,450 ft), Till Elem Math & Science Academy (1,750 ft). Confirm the assigned school with the district.
U.S. Department of Education, NCES
Major airport
7.1 mi
Chicago Midway (MDW). Aircraft may be audible under approach paths.
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 Vernon 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.
- 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.
- 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.
- 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.
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.