What Is a Good Cap Rate for an Apartment Building?
There is no single good cap rate for an apartment building. A cap rate that looks high may reflect a risky building or a weak market, and one that looks low may reflect a strong location or cheap money. The useful question is not "what number is good" but "is this cap rate fair for this building, in this market, with this income and this debt?" If you are a sponsor, DoorRaise helps you raise equity for a deal, but you still have to defend the cap rate in it.
This post is part of our guide to real estate syndication. It is about judging a cap rate, not defining one: our underwriting basics post covers the formula. Rules are as of October 2026.
So, what is a good cap rate?
It depends. The cap rate is net operating income divided by the purchase price. A building with $700,000 of NOI bought for $10,000,000 has a 7.0% cap rate. Buyers accept a lower cap rate (a higher price for the same income) when they believe the income is safe and likely to grow, and they demand a higher cap rate when they see more risk.
That means a cap rate cannot be "good" in isolation. A 5% cap rate on a stable building in a growing market and a 7% cap rate on a worn building in a shrinking market may both be fair, because the buyer is paid differently for different risks. A low cap rate is not a mistake, and a high one is not a bargain. Neither says anything about whether the investment will work out, and every investment can lose money.
We do not give a target number in this post, on purpose. Market cap rates change with interest rates, the economy and the type of building, and a figure written today will be wrong later. The section below shows how to find current figures yourself.
What moves a cap rate up or down?
Several things push buyers to accept or demand more yield. Understanding them helps you ask better questions.
- Interest rates. When loans and safe investments pay more, buyers usually want more yield from real estate, which pushes cap rates up. When money is cheap, the opposite tends to happen. The link is not exact or immediate.
- Location and market strength. Buildings in markets with growing jobs and limited new construction often trade at lower cap rates than buildings where demand looks weaker. Our guide to choosing an apartment market covers those signals.
- Building quality and age. Newer or better-kept buildings often trade at lower cap rates, partly because they need less repair money. See what Class A, B and C mean.
- Income quality. Stable, documented income from long-term renters supports a lower cap rate than income that is uncertain or hard to verify.
- Size and liquidity. Larger buildings with more potential buyers may trade at lower cap rates than small ones that few buyers can finance.
- Growth expectations. If buyers expect income to rise quickly, they may pay a price that implies a lower starting cap rate.
How do you compare a cap rate?
A cap rate gets meaning from a comparison. Use at least three.
Against recent sales of similar buildings
The best comparison is what comparable buildings sold for recently in the same submarket, with their NOI. Ask the sponsor for the sales used and check that they are truly similar in size, age, condition and location. One sale is an anecdote.
Against the cost of debt
Compare the going-in cap rate with the loan's interest rate. If the building yields less than the loan costs, borrowing does not add income on its own and the deal leans on future growth. That is a legitimate strategy, but it is a bet, and the model should say so. The debt service coverage ratio, explained in the underwriting basics, shows how comfortably NOI covers the payment.
Against the exit cap rate
The model also assumes a cap rate at sale. A higher exit cap rate than the entry rate lowers the sale price for the same income, and many conservative sponsors assume the exit rate is at least equal to the entry rate. If a model assumes a lower exit rate, ask for the reasons in writing. Our financial projections guide explains why this one input matters so much.
Where do you find market cap rates?
Cap rates come from sales, so the sources are people who track sales. Because the data is mostly published by private firms, use the original reports and note the date.
- Brokerage surveys. Large commercial brokerages publish periodic cap rate surveys or market reports by property type and metro. Search for the most recent edition and read the method, since many are opinions of brokers, not recorded sales.
- Sales data services. Commercial real estate data firms track recorded sales and publish indexes, some of them free in summary form.
- Lender research. Fannie Mae and Freddie Mac's multifamily groups publish market research and commentary. See Fannie Mae's multifamily site for an example of agency material.
- Your own broker and lender. A local broker who sells apartments should know recent trades. A lender quoting a loan has an opinion on value.
- The cost of safe money. The yield on 10-year U.S. Treasury notes is published through FRED, a Federal Reserve Bank of St. Louis service. It is not a cap rate, but it tells you what a lower-risk alternative pays on the day you read it.
Always write down the date and source next to any figure you use. If a deck quotes a market cap rate without a source or date, ask for them.
What are the cap rate traps?
Most bad cap rates come from the income, not the formula.
- Pro forma NOI. A cap rate based on income the sponsor expects after renovations is not the cap rate you pay. It is a hoped-for future yield. Ask for the in-place figure from the trailing 12-month statement.
- One-time income. Insurance proceeds, a seller's one-off fees or a temporary rent spike can inflate NOI. The rent roll and T-12 guide shows how to find them.
- Missing expenses. NOI that leaves out a management fee, replacement reserves or a realistic tax bill is too high. After a sale, property taxes and insurance often reset higher.
- Billed vs. collected income. A high occupancy number can hide unpaid rent and discounts, which is covered in economic vs. physical occupancy.
- Mixing cap rates. Do not compare a seller's cap rate (often on the seller's best-case NOI) with your own (on your underwritten NOI).
- Chasing the highest number. A high cap rate may be paying you for a real problem, such as heavy repairs, a weak area or short leases.
A hypothetical comparison
This example is hypothetical, for illustration only. The numbers are round and are not a market benchmark.
| Topic | Building 1 | Building 2 |
|---|---|---|
| Price | $10,000,000 | $10,000,000 |
| NOI | $500,000 | $700,000 |
| Cap rate | 5.0% | 7.0% |
| What an investor must still ask | Is the income stable and growing? Is the price too high? | Why does the building earn more? Is it older, riskier or in a weaker area? |
Building 2 shows the higher number, but the right response is a question, not a conclusion. If Building 2 needs a new roof and sits in an area losing renters, its 7% may not be higher in any way that matters. Try your own numbers in the cap rate and DSCR calculator.
Our take
Our view is that a cap rate is a pricing language, not a quality score. Use it to compare price per dollar of income across similar buildings, then spend your time on whether the income is real and the plan is realistic. For a first-time investor, the habit that helps most is to ask every sponsor the same three questions: which NOI is this based on, which sales support it, and what exit cap rate does the model assume?
How DoorRaise fits in
DoorRaise helps sponsors raise equity for apartment buildings with 5 or more units under Rule 506(b) or 506(c). It prepares the offering documents from the sponsor's inputs, coordinates escrow with an independent escrow agent named on the deal page, and handles filings. It does not value buildings or recommend cap rates, and a cap rate on a deal page is the sponsor's statement.
Raise your apartment deal from the people who already follow you.
DoorRaise is built for apartment buildings with 5 or more units: one link for the deal, escrow until closing and a standard fee card.
If you are building a deal, start your sponsor page or see the fees.
FAQ
What is a good cap rate for an apartment building?
There is no single number. It depends on the market, building quality, income stability and interest rates. Compare a deal against recent similar sales nearby and against the cost of debt.
Is a higher cap rate better?
Not by itself. A higher cap rate can reflect higher risk, such as an older building, a weaker area or less certain income. Ask why the building earns more for the price.
What is the difference between a cap rate and a return?
A cap rate is one year of NOI divided by price, before debt and taxes. An investor's return depends on the loan, fees, how income changes, the sale price and timing. See equity multiple, IRR and cash on cash.
Where can I find the average cap rate in my city?
Look for recent brokerage surveys, commercial sales data services and local brokers' sale lists. Note the date and the method, because published averages differ by source.
Should the exit cap rate be higher or lower than the entry cap rate?
Many conservative sponsors assume an exit cap rate at least equal to the entry rate. Ask for the reasoning if a model assumes it will fall.
Can cap rates change after I buy?
Yes. Buyer demand, interest rates and the economy change, and so does the price the building could sell for. That is why exit assumptions deserve a stress test.
Sources
- Federal Reserve Bank of St. Louis (FRED), Market Yield on U.S. Treasury Securities at 10-Year Constant Maturity
- Fannie Mae, Multifamily fixed-rate mortgage loans
- Investor.gov, Investor Bulletin: Publicly Traded REITs
This article is general information, not legal, tax or investment advice. Talk to a securities attorney and a CPA about your deal. DoorRaise is not a law firm, broker-dealer, investment adviser or funding portal.