10623 South Union Avenue, Chicago
technical data · neighborhood and transit
Quick answers
- Does 10623 South Union Avenue have open permits or code violations?
- Chicago Department of Buildings lists 5 permits, 2 not closed, and 8 violations, 1 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 10623 South Union 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. 1 open violation.
- Permit – express permit program Jan 2026Complete
For permit 101062825: replacement general contractor. new contractor(s) listed under "other applicants and contractors" on permit certificate.
- Permit - renovation/alteration Mar 2025Active
Self-cert 2019 cbrc: construct a new 1-story master bedroom rear yard building addition to an existing 2-storey, type iii-a construction single-family house, which includes carpentry, masonry, hvac, electrical, and plumbing work - ( the building occupancy classification is r-5 and the building addition construction type is v-a ).
- Permit – express permit program Mar 2025Complete
Line voltage electrical work. new permanent 100 amp service disconnecting means with 14 circuits. receptacle outlets: 1 . lighting outlets: 0. 13.5 kwh lithium ion energy storage system. specific location: basement & back exterior.
- Permit – express permit program Nov 2024Complete
Install solar panels on roof of principal building. roof type: sloped (2:12 to 5:12). inverter output: 11.5 kw. array output: 7.41 kw. includes 13.5 kwh energy storage system. location: roof planes. icc distributed generation installer cert. #18-0817.
- Permit - easy permit process Jun 2018
Garage
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
1 within 1,650 ft
Nearest: Shell Oil Co., 10655 South Halsted (750 ft), no further action. Every release here is closed by the state regulator.
EPA UST Finder, leaking underground storage tank releases
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
1,600 ft
Dunne Technology Acad Elem Sch (1,600 ft), Ombudsman Chicago - Roseland HS (2,200 ft), Mount Vernon Elem School (2,300 ft). Confirm the assigned school with the district.
U.S. Department of Education, NCES
Major airport
8.3 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 Union 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 specifically where you'd park: is there paid city parking, who currently holds it, what the permit costs, and how long the waitlist is.
- 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.
- Knock on a neighboring door and ask two things: what bothers them most often, and what work is planned for the building.
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.