BSCBlue Sky Capital Advisors
Multifamily loan sizer

How Much Can You Borrow on a Multifamily Property? The Two Tests, and Which One Binds.

A lender sizes an apartment loan two ways at once — debt-service coverage and loan-to-value — and lends the lower of the two. The number is the easy part. Knowing which test produced it is what tells you whether a bigger appraisal, a longer amortization, or more income is the thing that actually moves it.

The building

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An occupancy assumption, not a rate.

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The underwriting

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Your assumption. Blue Sky publishes no rates.

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Agency small-balance programs reach 80% in some markets — set it to match the deal in front of you.

Defaults reflect thresholds lenders Blue Sky Capital Advisors places with typically require. Change either to match a term sheet in front of you.

Maximum loan
$—
per unit once you enter the building
Binding constraint
DSCR-constrained$—
LTV-constrained$—
LTV
DSCR
Debt yield

Enter the property value, unit count, gross scheduled income and your rate assumption. A lender sizes an apartment loan two ways at once and lends the lower of the two — this shows both, and names the one that binds.

Why two lenders size the same building differently

The add-backs are what separate a bank quote from a private-credit quote.

Every lender underwrites the building rather than the operator, so every lender adjusts the income you hand them. What differs between desks is how much. A bank or agency execution applies all three of the adjustments below and holds a full coverage cushion on top; private credit takes the expenses largely as presented and will go to a thinner coverage, in exchange for a shorter term and a business plan that has to actually happen. That is the spread you see in the two lanes above, and it is the reason placement is a decision rather than a formality.

Management fee

Applied by bank and agency lenders at three to five percent of effective gross income even when the owner self-manages. The reasoning is not that the lender doubts you — it is that if they ever take the building back, they are hiring a manager. Owners routinely omit it because it is not a cost they pay. Lenders never do.

Replacement reserves

Typically $250 to $300 per unit per year on multifamily, deducted before net operating income rather than treated as a capital item — a bank and agency convention that most private credit does not impose. Roofs, boilers and turnovers are real annual costs even in a year you do not spend the money. On a 20-unit building that is several thousand dollars off net operating income before any test is run — which moves the coverage test and the debt yield you are reading together.

Vacancy floor

Underwritten at a market minimum — commonly five percent — even when the building is one hundred percent occupied on the day you apply. This is the one adjustment both lanes make. Full occupancy today is not evidence of full occupancy across a ten-year loan term, and no credit committee will size against it.

Debt yield: the metric behind the tests

Debt yield is net operating income divided by the loan — the lender's day-one return if they took the building back tomorrow. It is not one of the two tests that size your loan, and on $1M–$5M multifamily most of the lenders Blue Sky Capital Advisors places with do not underwrite to it as a primary constraint. It is reported above because of what it is: the one figure that is both leverage- and rate-independent, so it cannot be engineered with a longer amortization or an interest-only period.

That independence is what makes it worth reading. Coverage improves the moment you stretch amortization; debt yield does not move at all. So when a deal clears coverage comfortably and the debt yield still looks thin, the sizing is being carried by loan structure rather than by the building — and on the balance sheets that do weigh it, usually the larger institutions and the conduits, that is where a file gets questioned. Reading it early is how you find that out before an appraisal, not after.

The two lanes above apply these assumptions to your building and re-run both tests in each, so the bank number and the private-credit number sit side by side. On most stabilized deals the gap is larger than sponsors expect, and it is almost always the reason a quoted proceeds figure comes back lower than the one they modeled — or, in the other direction, the reason a deal a bank passed on still gets done. Blue Sky Capital Advisors places across both.

24-hour placement answer

Not sure your deal places? Find out before you spend anything.

Send the basics — property, county, loan size, the story. Within 24 hours on a business day, you'll have a straight answer: whether this deal places with the lenders we work with, and if it doesn't, why — before you pay for an appraisal or an application anywhere.

A placement answer within 24 hours on a business day. Not an approval, a commitment, or a quote — and it costs nothing.

Where this deal goes next

Blue Sky Capital Advisors arranges multifamily financing nationally, with the deepest lender coverage in New Jersey and South Florida. Once you know which test is binding, the market you are in decides who to approach.

Questions sponsors actually ask

Sizing a multifamily loan

How much can I borrow on a 12-unit apartment building?
It depends on two tests, and the answer is the lower of the two — not an average. A lender sizes the debt service the net operating income supports at their required coverage, and the share of value they will lend against. Whichever yields the smaller loan is the one that sets your number. On a 12-unit building the loan-per-unit figure is usually the fastest sanity check: divide the sized loan by 12 and compare it to what similar buildings in the same submarket are actually financing at. Blue Sky Capital Advisors sizes deals against both tests before taking a file to market, because the constraint that binds determines which lenders are worth approaching at all.
What is debt yield and why did my lender decline a deal that passed DSCR?
Debt yield is net operating income divided by the loan amount — the lender's day-one return if they took the building back tomorrow. It is the one figure that ignores both leverage and the interest rate, which is why it is worth reading even though it does not size your loan here. A deal can clear its debt-service coverage requirement and sit comfortably inside the loan-to-value cap and still be declined, because the income relative to the loan is too thin to protect the lender in a downside. Borrowers who have only ever been shown a coverage number do not see it coming, and the decline reads as arbitrary. It is not. On $1M–$5M multifamily most of the lenders Blue Sky Capital Advisors places with do not underwrite to it as a primary test, but the larger balance sheets and the conduits do weigh it — so a thin debt yield narrows which lenders are worth approaching.
Why does my lender's NOI not match mine?
Because a lender underwrites the building, not the operator. Three adjustments account for nearly all of the gap. A management fee is applied even when you self-manage, on the reasoning that the lender may one day have to hire a manager. Replacement reserves are deducted before net operating income, typically a few hundred dollars per unit per year, because roofs and boilers are a real annual cost even in a year you do not spend it. And vacancy is underwritten to a market floor even when the building is fully occupied today. None of these are in most owners' spreadsheets, and together they routinely move net operating income by more than the owner expects — which moves the coverage test and the debt yield you are reading with it.
Which of the two tests usually binds on a multifamily deal?
It moves with the market. When borrowing costs are low relative to cap rates, the loan-to-value cap binds and the deal is limited by the appraisal. As borrowing costs rise, the coverage test takes over, because the same net operating income services less debt. This is why the binding constraint is worth naming rather than just reporting a number: if the loan-to-value cap binds, a higher appraisal helps you and nothing else does; if coverage binds, a longer amortization or an interest-only period changes the answer. Debt yield moves with neither, which is why it is reported alongside them — when it looks thin on a deal that clears both tests, the sizing is being carried by structure rather than by the building.
Does a longer amortization increase how much I can borrow?
Only if the coverage test is the binding constraint. Stretching amortization lowers the annual debt service on the same loan, which raises the loan the income supports — so if coverage is what is limiting you, it moves your number. If the loan-to-value cap is binding, amortization changes nothing at all, because that test does not involve the payment. Debt yield does not move either. This is the practical reason to size a deal both ways before negotiating terms: asking a lender for thirty-year amortization is worth doing when coverage binds and is wasted leverage in the negotiation when it does not.
Is this sizing a loan offer?
No. It is an estimate built from figures you supply and the underwriting thresholds that are typical among the lenders Blue Sky Capital Advisors places with. It is not a loan offer, a rate quote, or a commitment to arrange financing, and no rate is published here — the rate used in the calculation is the one you enter. What the sizing is genuinely useful for is knowing which of the two tests is binding before you pay for an appraisal or submit an application, because that determines whether your deal is worth taking to market as structured.
What does loan per unit tell me that the loan amount does not?
It is the figure multifamily lenders and buyers actually compare across deals, because it normalizes for building size. A sized loan means little in isolation; the same loan spread across eight units versus twenty-four units describes two very different risk profiles. Lenders carry rough per-unit ceilings by market and vintage, and a sizing that clears both tests but lands well above what a submarket supports per unit will still draw questions in credit. Blue Sky Capital Advisors uses the per-unit figure as an early screen on which lenders are a realistic fit for a given building.

Know the number. Now find out who funds it.

A sizing tells you what the building supports. It does not tell you which lender will actually do it, at what structure, or how fast. Blue Sky Capital Advisors places multifamily deals across a network of more than one hundred bank and private-lender relationships, and takes the file to the ones whose appetite matches the constraint that is binding yours.

Prefer to talk it through? (908) 220-6404, or price your loan with the full intake.

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