The Chicago two-flat is one of America's classic small rental buildings, and Illinois has thousands of them, along with three-flats, greystones and downstate duplexes.
In short: You can finance a Illinois duplex, triplex or fourplex with a LendingStreet DSCR loan that qualifies on the building's combined rent, with no tax returns. Loans start at $150,000 with no stated maximum, leverage goes up to 80% LTV on purchases and 75% on cash-out, and the standard minimum is a 1.0x ratio with 620 credit. In Illinois, the property tax bill and Chicago's transfer tax are the big numbers, and investors in Chicago must follow the Residential Landlord and Tenant Ordinance.
Chicago's two-flats and three-flats are concentrated in Logan Square, Avondale, Albany Park, Pilsen, Bridgeport, Humboldt Park, Rogers Park and Portage Park, many built of brick or greystone in the early 1900s. Suburbs such as Berwyn, Cicero and Oak Park also have two-flats.
Downstate, Champaign-Urbana, Peoria, Springfield, Rockford, Bloomington-Normal and the Metro East near St. Louis have duplexes and fourplexes at lower prices, often with stronger ratios.
| Area | Typical 2-4 unit stock | What to check |
|---|---|---|
| Chicago North and Northwest Side | Brick two-flats and three-flats | Taxes, RLTO, prices vs rents |
| Chicago South and Southwest Side | Lower-priced two-flats | Condition; tax bills relative to price |
| Cook County suburbs | Two-flats in Berwyn, Cicero, Oak Park | High suburban tax rates |
| Downstate | Duplexes and fourplexes | Lower prices; stronger ratios |
Every unit's rent counts. The underwriter adds up the leases or market rents for all units, then divides by the monthly payment: principal and interest plus taxes, insurance and any association dues. If the result is at least 1.0x, the building meets the standard minimum; sub-1.0 programs exist for files that fall short.
Your personal income is not part of the calculation. Instead of W-2s and tax returns, the file rests on the rent roll, the appraisal, a 620 or higher credit score, reserves and, if you use one, your LLC documents.
Because the payment drives the ratio, small cost changes matter. A Illinois building that clears 1.0x on the seller's tax bill and an old insurance renewal can fall short once the bill is reassessed and a new policy is written, so price both before you commit.
Cook County assesses residential property at a 10% assessment ratio and reassesses on a three-year cycle by region, then applies a state equalizer and local rates. Effective tax bills in Chicago and many suburbs are high. The homeowner exemption applies only to owner-occupants, so check whether the seller's bill includes it.
Illinois charges state and county transfer taxes, and Chicago adds its own real property transfer tax, with a large buyer portion. On a $600,000 two-flat, the Chicago buyer tax alone is several thousand dollars. Include it in cash to close.
Cook County's appeal process is active, and many owners appeal assessments. Use the current bill, but check whether an appeal or a new reassessment cycle is pending.
This example is illustrative and not a quote. An investor buys a brick two-flat in Avondale for $650,000. Rent is $2,200 per unit, or $4,400 a month across both units. Taxes are budgeted from the current Cook County bill without the homeowner exemption.
In the 80% LTV column, the loan is $520,000, estimated principal and interest is about $3,460, taxes are $833 a month and insurance is $233, for a total payment of about $4,526 and a DSCR of about 0.97x. In the 75% LTV column, the loan is $487,500, estimated principal and interest is about $3,243, taxes are $833 a month and insurance is $233, for a total payment of about $4,309 and a DSCR of about 1.02x. At 80% LTV the ratio is just under 1.0x, and at 75% it clears. The tax bill is the main reason; downstate two-flats often have more room.
| Item | 80% LTV | 75% LTV |
|---|---|---|
| Purchase price | $650,000 | $650,000 |
| Combined monthly rent | $4,400 | $4,400 |
| Loan amount | $520,000 | $487,500 |
| Estimated principal and interest | $3,460 | $3,243 |
| Property taxes (monthly) | $833 | $833 |
| Insurance (monthly) | $233 | $233 |
| Total monthly payment | $4,526 | $4,309 |
| DSCR | About 0.97x | About 1.02x |
Chicago two-flats are usually solid masonry, but flat roofs, older electrical service and basement flooding are common underwriting topics. Many buildings have a garden unit that can take on water during heavy storms. Insurers may ask about sewer backup coverage. Downstate properties face tornado and hail risk.
Downstate, older frame duplexes in Peoria, Springfield and Rockford may have aging roofs and furnaces. Get quotes early.
Chicago's Residential Landlord and Tenant Ordinance applies to most rentals, with an exemption for owner-occupied buildings of six or fewer units. Because investors do not live in the building, the RLTO generally applies, with strict rules on security deposits, interest and notices. Illinois preempts local rent control statewide.
Some suburbs and downstate cities require rental licensing or inspections, so check the local requirements.
A duplex, triplex and fourplex all qualify the same way, on combined rent, with up to 80% LTV on purchases and up to 75% on cash-out. The practical difference is risk: a duplex with one vacant unit loses half its income, while a fourplex loses a quarter.
If you are looking at a five- to eight-unit building, it is still a residential loan, but expect closer review and possibly lower leverage, which varies by program. Buildings of nine units or more move to commercial financing.
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Our investor loans are business-purpose loans on non-owner-occupied property, and we finance duplexes, triplexes and fourplexes throughout Illinois. Tell us the address, purchase price or value, current rents and your goal, and the team will size the loan on the property's actual numbers. Use the form below to get a quote, or call (877) 298-1001.
Generally yes. The exemption is for owner-occupied buildings of six or fewer units, so investor-owned buildings are usually covered.
Chicago charges a real property transfer tax with a large buyer portion, plus state and county taxes. Ask your attorney for the exact figure.
Yes. We finance duplexes, triplexes and fourplexes throughout Illinois, and downstate ratios are often stronger.
Some do, depending on taxes and rents. If the ratio falls short at 80%, a lower loan amount or a sub-1.0 DSCR program can work.
Yes. An empty unit is typically counted at appraised market rent. Leasing it before closing, or showing it is rent-ready, helps the file.
Our investor loans are business-purpose loans on non-owner-occupied property, so these DSCR programs are not for a building you will live in.
Yes, up to 75% LTV, as long as the combined rent covers the new payment at the program minimum. Seasoning rules vary by program.
No. The loan qualifies on the combined rent of the units. You need a credit score of 620 or higher, reserves and, if you borrow in an LLC, your entity documents.
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