Duplexes in Illinois | Reonomy

Duplexes in Illinois

Unlock property data on all 15,839 duplexes in Illinois. Search across 100 counties to find the Illinois property records you need, and get in touch with Duplex owners in any market. Discover off-market properties likely to sell, refinance, or renovate, or find recent buyers and sellers.

Start a limited search below, or access full Illinois property data here.

Popular searches around Illinois

Reonomy attracts a large community of Illinois commercial real estate professionals, including brokers, investors, roofers, contractors, appraisers, insurance providers, and more—many of which specialize in duplexes.

To unlock full property records and owner contact information start a free trial

Illinois duplex sold prices and values

Values and sold prices (last 24 months) United States Illinois
Average price/sqft $1,970 $1,761
Average sold price $400,478 $202,250
Median sold price $180,595 $110,714
Number of sales 175,726 1,509
Number of sales over $250k 68,742 169
Number of sales over $1m 11,101 33
Number of sales over $10m 398 --
Average total tax amount $4,179 $3,301
Average assessed value $190,179 $36,138
Average market value $307,943 $107,277

Illinois duplex property averages

Property averages United States Illinois
Average lot size 37,168 sf 11,124 sf
Median lot size 6,054 sf 7,414 sf
Average building area 140 sf 97 sf
Median building area 69 sf 59 sf
Median year built 1939 1969
Average number of units 2 2
Median number of units 2 2

Illinois duplex total supply

Supply United States Illinois
Number of parcels 2,010,206 15,860
Aggregate lot acerage 117,420,630 3,553
Aggregate building area 151,473,441 sf 843,040 sf
Aggregate units 3,606,350 28,704

Illinois duplex industrial mortgages

Debt United States Illinois
Number of mortgages 5,606,713 52,431
Average value of mortgages $279,711 $176,649

To unlock full property records and owner contact information start a free trial