Blog > Chicago Multifamily Cap Rates in 2026: What a 2–4 Flat Actually Returns
Chicago Multifamily Cap Rates in 2026: What a 2–4 Flat Actually Returns
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Short answer: Chicago multifamily traded at an average 6.81% cap rate in Q3 2026 (Matthews). Small 2–4 unit buildings in strong North and Northwest Side neighborhoods usually underwrite lower, often 4–6%, once you count vacancy, management, and real repair costs. The advertised cap rate on a listing is almost always higher than the cap rate a lender will underwrite.
Investors send us listings all the time that say "6.5% cap" and ask if it's a deal. Our first move is always the same: rebuild the numbers the way a bank would. Usually, the real cap rate comes in a point or more below the flyer. Here's how to know the numbers behind the buildings before you write an offer.
Chicago multifamily by the numbers (Q3 2026)
| avg. cap rate | avg. monthly rent | vacancy | rent growth YoY |
|---|---|---|---|
| 6.81% | $2,204 | 3.4% | +3.2% |
Those figures come from the Matthews Q3 2026 Chicago multifamily report. Cap rates are 110 basis points above their late-2021 low of 5.71%, which means buyers today get more income per dollar than they did at the peak. Vacancy is tight and rents hit a record, which supports values.
One caution: that 6.81% average leans on larger apartment buildings. Small buildings trade on different math. In Q2 2026, mid-market buildings (6–100 units) in the city sold at a median $168,000 per unit, versus $141,000 in the suburbs, according to Essex Realty Group. The median city building in that data set was built in 1919. Older buildings need bigger repair budgets, and that shows up in the cap rate.
Axon working cap rate ranges by building class
These are the ranges our team uses as a starting bar for stabilized 2–30 unit buildings, underwritten with lender-style expenses. They are not appraisals, and every building gets its own comps.
| Building class | Typical Chicago areas | Cap rate range |
|---|---|---|
| Class A (prime) | Lincoln Park, Lake View, North Center | 5.00–5.75% |
| Class B (solid) | Avondale, Irving Park, Portage Park, Jefferson Park, Beverly | 6.00–7.00% |
| Class C (value) | Varies block to block | 7.50–9.00% |
Most of the investors we work with buy in the Class B band. That's where entry-to-mid-level investors can find 2–4 unit buildings around $1 million that still cash flow with the right financing.
How to calculate a cap rate the way a lender does
Cap rate = net operating income ÷ purchase price. The formula is simple. The trouble is what sellers leave out of "net operating income." A lender will include all of these:
- Vacancy: at least 5% of gross rent, even if the building is full today.
- Management: at least 5%, even if you plan to self-manage.
- Repairs and maintenance: at least $500 per unit per year, more on a 100-year-old building.
- Actual taxes and insurance: use the current bill, and expect taxes to be reassessed after a sale.
- Owner-paid utilities and reserves: water, common electric, heat if the building has a boiler.
Example: a $900,000 North Side three-flat
This is an illustrative example, not a specific listing.
| Line item | Advertised | Lender-style |
|---|---|---|
| Gross rent (3 units × $1,900/mo) | $68,400 | $68,400 |
| Vacancy (5%) | – | –$3,420 |
| Property taxes | –$14,000 | –$14,000 |
| Insurance | –$4,500 | –$4,500 |
| Management (5%) | – | –$3,249 |
| Repairs ($500/unit) | – | –$1,500 |
| Owner-paid utilities | – | –$3,000 |
| Reserves ($300/unit) | – | –$900 |
| Net operating income | $49,900 | $37,831 |
| Cap rate | 5.5% | 4.2% |
Same building, same rents, and a 1.3-point gap in cap rate. That gap decides whether the deal cash flows. It's also why prime-neighborhood 2–4 flats are usually bought for appreciation and owner-occupancy, not day-one yield.
Financing changes the math on 2–4 units
Buildings with 2–4 units can still be financed with residential loans, which is a major advantage over 5+ unit commercial deals. For 2026, Illinois limits are:
| Loan type | 2 units | 3 units | 4 units |
|---|---|---|---|
| Conforming (conventional) | $1,066,250 | $1,288,800 | $1,601,750 |
| FHA | $693,050 | $837,700 | $1,041,125 |
Source: FHFA and HUD 2026 limits as compiled by Homebuyer.com. Loan programs and eligibility vary; talk to a licensed lender about your situation.
The FHA catch on three- and four-flats: self-sufficiency
A high FHA loan limit doesn't mean a three- or four-flat will qualify. FHA requires 3–4 unit buildings to pass a self-sufficiency test: 75% of the appraiser's market rent for all units, including the one you live in, has to cover the full monthly payment (principal, interest, taxes, insurance, and mortgage insurance). Here's a plain-English breakdown of the rule.
At current rates, most Chicago three- and four-flats fail it. An illustrative example: a $750,000 three-flat with 3.5% down at a 6.25% rate carries a payment of roughly $6,170 a month. Three units at $1,900 is $5,700 in rent, and 75% of that is $4,275. The building misses by about $1,900 a month.
Two-flats aren't subject to the test, so FHA house hacking still works best there. On three- and four-flats, most owner-occupants use conventional financing instead, which Fannie Mae allows with as little as 5% down on an owner-occupied 2–4 unit home. That's how a lot of our own agents started: house-hacking a two-flat, then trading up.
Here's my recommendation
- Ignore the advertised cap rate. Rebuild NOI with vacancy, management, repairs, and real taxes before you compare buildings.
- Pick your goal first. If you want day-one cash flow, look at Class B pockets. If you want appreciation and plan to live there, a 4–5% cap in a Class A area can still make sense.
- Budget for the building's age. A 1919 building with a boiler needs a bigger reserve than a 1970s masonry six-flat.
- Underwrite the tax bill after the sale, not the seller's bill.
Frequently asked questions
What is a good cap rate for a Chicago two-flat?
On lender-style numbers, a stabilized two-flat in a strong North or Northwest Side neighborhood often lands between 4% and 6%. Anything above 7% in those areas usually means higher risk, deferred maintenance, or optimistic numbers.
What is the average multifamily cap rate in Chicago?
The citywide average was 6.81% in Q3 2026, according to Matthews. Small buildings in prime areas trade lower, and buildings in value areas trade higher.
Are cap rates going up or down in Chicago?
Cap rates are about 110 basis points higher than the 2021 low. Over the past year, record rents and 3.4% vacancy have kept values firm, and sales volume rose 49% year over year.
Can I use an FHA loan on a three-flat?
Technically yes, but most don't qualify at today's rates. FHA requires three- and four-unit buildings to pass a self-sufficiency test, where 75% of the market rent for all units must cover the full monthly payment. Two-flats don't face that test, so they're the more realistic FHA house hack. Ask a lender to run the test on a specific building.
Want us to run the numbers on a building? Our agents are investors and house-hackers themselves. Send us an address and we'll underwrite it the way a lender will. Book an investment strategy call or email info@theaxongroup.com.
Disclaimer: This article was prepared on behalf of Michael Scanlon of The Axon Group with the assistance of artificial intelligence (AI), and was reviewed before publication. It is for general information and education only and is not financial, investment, tax, legal, or lending advice. Market data, interest rates, loan guidelines, and laws change often, and this article may contain errors or omissions. Readers should independently verify any facts, figures, or claims and consult qualified professionals before making any decision. Examples are illustrative and do not represent any specific property or guaranteed result. The Axon Group is brokered by eXp Realty, LLC. Equal Housing Opportunity.