5641-5645 South Blackstone Avenue, Chicago
technical data · neighborhood and transit
Quick answers
- Does 5641-5645 South Blackstone Avenue have open permits or code violations?
- Chicago Department of Buildings lists 19 permits, 12 not closed, and 51 violations, 37 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 5641-5645 South Blackstone Avenue at risk for?
- FEMA's National Risk Index rates the area relatively low overall, with elevated cold wave risk.
Permits and code violations
12 permits not closed out. Unfinished permits pass to the next owner. 37 open violations.
- Permit – express permit program Apr 2026Active
Tuckpointing and unit masonry repair / replacement: 200 sq. ft., lintel qty. 0, max. length 0. location: front-west, northwest & north side walls.
- Permit - reinstate revoked pmt Aug 2022
Reinstate permit no 100604444, must request inspections and finalize this year
- Permit - easy permit process Jul 2022
Revision to permit no 100604444, change mason to j l contractors services, ltd, change plumbing contractor to lj services, llc, change vent contractor to cool tech hvac & plumbing and change electrical contractor to magic electric ii inc"
- Permit - easy permit process Dec 2021
Revision to permit no 100604444 to change mason to ciesla construction, change plumbing contractor to grand plumbing, change gc to loop construction & remodeling, change vent contractor to thermopol-mechanical and change electrical contractor to derek electric
- Permit - easy permit process Jun 2021
Remove and replace(150 sq ft)on west elevation with same kind and like.
- Permit - easy permit process Nov 2020
Furnace (replacement only): qty 2
- Permit – express permit program Nov 2019Complete
Re-wire basement and the exposed piping on the basement ceiling supplying the rooms above.
- Permit - easy permit process Jun 2018
Reset displaced stone, tuckpointing.
- Permit - renovation/alteration Jan 2017Complete
Rebuild porches as per plans
- Permit - easy permit process Aug 2016
Revision to permit #100604444 change the mason of record to j.l. contractors.
- Permit - easy permit process Jul 2016
Change general contractor to owner
- Permit - renovation/alteration May 2016Complete
Self-certification: renovation and addition -extend existing kitchen. new 400 sq.ft,, type 4a construction sunroom addition, new rear porch and basement bathroom to existing single family home all as per plans.conditional permit subject to field inspection. 5639 s blackstone.
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
3 within 1,650 ft
Nearest: Lake Park Assoc., 1552 East 55th St. (1,300 ft), open. 1 still open. Ask whether groundwater or soil vapor testing was done.
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
1,050 ft
Bret Harte Elem School (1,050 ft), Ray Elem School (1,250 ft), Murray Elem Language Academy (2,350 ft). Confirm the assigned school with the district.
U.S. Department of Education, NCES
Major airport
8.4 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 Blackstone 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.
- 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.
- Schedule a viewing on a weekday too, between 6:00 and 7:30 PM, the window when the building is busiest: neighbors, parking, elevator.
Neighborhood recommendations are derived from public OpenStreetMap data and may be incomplete. Checking in person is still what matters most.