How Mezzanine Debt and Preferred Equity Fill the Capital Stack Gap

Mezzanine debt and preferred equity supply the slice of total cost that the senior mortgage and the sponsor’s common equity do not reach. Mezzanine debt is a loan secured by a pledge of ownership interests in the mortgage borrower, and preferred equity is an ownership position paid ahead of common equity. Both rank behind the senior mortgage and ahead of common equity, so each is repaid from what remains after senior debt and absorbs losses before the senior lender does.

Where the gap comes from in a sources-and-uses table

The gap is the part of total uses that senior proceeds and common equity leave uncovered. Uses cover the price or construction cost and the closing costs. Reserves and the cost of the financing itself count as uses too. Senior proceeds and common equity are the first two sources, and whatever remains is the amount mezzanine debt or preferred equity has to supply.

Mezzanine debt is the level of debt between the senior secured debt and the equity. Borrowers have used it to bridge the difference when the mortgage lender offers less than the project needs.

The gap can also be closed by a single larger loan. Some developers arrive with financing equal to 50 to 55 percent of cost and look for a mezzanine lender to cover the rest. Others take a whole loan from a debt fund that lifts the debt to 65 or 75 percent of cost, or whatever the project requires. Both routes reach a similar total. They differ in how many lenders hold claims and how many documents govern the cash flow.

Fees and reserves funded out of junior proceeds are uses as well. The stated size of the junior piece therefore overstates the cash that reaches the asset.

“Mezzanine debt is the level of debt between the senior secured debt and the equity, and was typically used by borrowers to fund development projects.”

Pledged equity versus a lien: what each piece is secured by

A senior mortgage attaches to the real property. A mezzanine loan attaches to the ownership interests above it.

The mezzanine borrower is typically the direct or indirect parent of the mortgage borrower. It pledges its direct or indirect equity interests in the mortgage borrower as collateral for the loan, so the lender holds no mortgage on the building.

Many mezzanine loans are secured this way, by a pledge of equity interests in the property owner or in another company in the ownership structure. Some mezzanine loans carry no security at all. Large financings often stack the two: mortgage tranches secured by the property and mezzanine loans secured by equity in the property-owning entity.

The pledged interests are worth only the residual value left after the debt ahead of them, so the pledge reaches whatever value sits beneath the mortgage and nothing more.

Preferred equity is an ownership position. Its holder is paid ahead of common equity from distributions, and the priority comes from the entity’s payment terms. The same priority can exist without any claim on the real estate.

Current pay and accrual shift the cash burden through time

Current-pay preferred equity is typically paid monthly from property cash flow. Accrual preferred equity carries a set rate that goes unpaid until the property is built and begins to generate operating cash flow.

The accrued amount is then settled through a refinancing or a sale. A preferred return is a contractual entitlement to be paid when cash exists, and the entitlement does not create the cash.

Accrual is typically used for development projects, which explains the fit. A building under construction has no operating income to distribute, so deferring the return lets the junior capital fund the gap without a monthly payment the asset cannot support.

The cost of deferral appears at exit. Every period of accrual adds to the amount that must be paid before common equity sees a dollar. Simple accrual applies the rate to the original capital only. Compounding adds unpaid return to the base that earns the next period’s return.

How much common equity sits beneath, and what the junior layer absorbs

Common equity is the cushion under the junior layer, and its size sets how far value can fall before junior capital takes a loss.

A minimum of 15 percent common equity beneath the position is a floor that one preferred equity and mezzanine investor states for its own underwriting. It is a house rule and no market standard.

Maximum borrowing varies by product and period. In one product range, maximum borrowing reached 90 percent of the capital stack for participating preferred equity and 87 percent for nonparticipating products, down from 93 and 90 percent before the pandemic.

Lower priority in the stack costs more because the position absorbs losses sooner. Subordinated debt carries greater default credit risk than senior debt secured by the same assets, and it typically takes losses first.

“Investments in subordinated debt involve greater credit risk of default than more senior classes or series of debt collateralized by the same assets. Subordinated debt typically absorbs losses from default before other more senior debt against the same asset or assets.”

Worked example: a $50 million acquisition with $10 million of junior capital

Hypothetical inputs: total uses are $50 million. The senior mortgage is $32.5 million, which is 65 percent of uses. Common equity is $7.5 million, or 15 percent. Junior capital of $10 million, or 20 percent, makes up the rest, and total sources equal $50 million. The gap after senior debt and common equity is $50 million minus $32.5 million minus $7.5 million, or $10 million. The junior capital attaches at ($32.5 million plus $10 million) divided by $50 million, or 85 percent of uses.

Both cases use the same capital, no financing fees, no interim distributions and a three year hold. The junior capital accrues simple interest at 12 percent per year, with nothing paid until exit. Exit proceeds go first to senior principal, next to junior principal plus accrued return, and last to common equity. The waterfall is the same whether the junior piece is mezzanine principal or preferred capital.

Accrued return is $10 million multiplied by 12 divided by 100 multiplied by 3, or $3.6 million. The junior amount due is $10 million plus $3.6 million, or $13.6 million.

Base case: net sale proceeds are $60 million. After $32.5 million of senior principal, $27.5 million remains. Paying the $13.6 million junior amount leaves $13.9 million for common equity. Against $7.5 million contributed, common equity gains $13.9 million minus $7.5 million, or $6.4 million.

At closing, $50 million minus $32.5 million leaves $17.5 million beneath the mortgage. In the base case, deducting only junior principal leaves $60 million minus $32.5 million minus $10 million, or $17.5 million, before accrued return is paid.

Stressed case: net sale proceeds are $45 million. After senior principal, $12.5 million remains. The junior amount due is $13.6 million, so the shortfall is $13.6 million minus $12.5 million, or $1.1 million. Junior principal is still covered, since $12.5 million minus $10 million leaves $2.5 million above it. The whole shortfall sits in accrued return. Common equity receives nothing and loses its $7.5 million.

The break-even for the junior position is $32.5 million plus $13.6 million, or $46.1 million of net proceeds. Against $50 million of uses, the cushion is $50 million minus $46.1 million, or $3.9 million. That is $3.9 million divided by $50 million multiplied by 100, or 7.8 percent of uses.

The 15 percent common equity looked like far more room at closing than the 7.8 percent that remained at exit. Three years of accrual and the senior balance consumed most of it before the junior piece took any loss.

Securitized and fund-held structures: who ends up owning each piece

The junior layer often passes into different hands than the senior one. In a CMBS transaction, the most senior debt tranche is typically securitized into multiple classes of bonds. Junior mortgage portions and mezzanine loans might be sold to real estate debt funds, which often finance those purchases with their own borrowing, such as real estate CDOs.

Capital placement firms earn fees from arranging senior debt, mezzanine debt, joint venture capital, preferred equity and securitization. A single borrower can see each of these products quoted at once.

Adding a junior layer after closing depends on the senior documents. In a CRE CLO, criteria-based modifications can cover rate, principal, payment timing, maturity or permission for mezzanine debt or preferred equity, subject to deal-specific conditions and protections. A capital stack that balances on paper still needs that permission.

Common mistakes in analyzing junior capital

Treating a mezzanine loan as a second mortgage misidentifies the collateral. The lender’s security is an equity pledge, and its value is the residual after senior debt. In the example, $50 million of value less $32.5 million of senior debt leaves $17.5 million beneath the mortgage, and the junior piece draws on that residual.

Reading preferred priority as a secured position confuses payment order with collateral. Priority over common equity ranks distributions. A lien on the real estate or a pledge over equity is a separate right that has to appear in the documents.

Counting only the original junior principal at exit understates what stands ahead of common equity. In the example, junior principal is $10 million but the amount due is $13.6 million. A model that deducts $10 million shows common equity receiving $17.5 million in the base case, when the correct figure is $13.9 million.

Treating the common contribution as a fixed cushion ignores accrual. The $7.5 million contributed is a closing figure. The exit cushion is the proceeds left after the amounts payable ahead of common equity, and that is $13.9 million of room before the junior position is impaired.

Merging unpaid return with principal loss blurs the diagnosis. In the stressed case the $1.1 million shortfall is all accrued return, and principal is covered with $2.5 million to spare. Reporting a single loss figure hides which of the two failed.

Assuming that sources equal to uses settles the matter skips permission. The senior documents can condition or prohibit additional mezzanine or preferred capital, so the arithmetic is only half of the test.

Checklist questions for reviewing a mezzanine or preferred layer

What remains unfunded after senior proceeds and common equity?

Which entity owes the mezzanine loan, and which ownership interests are pledged?

Where does the preferred position sit in the distribution order?

Is the return current pay or accrual?

Is accrual simple or compounding?

What proceeds remain after senior repayment in the stressed case?

How much of a modeled shortfall is principal and how much is unpaid return?

What common equity sits beneath the junior piece, and how much of it survives accrual?

Do the senior documents permit the proposed junior capital?