The capital stack is the ordered list of every layer of debt and equity that finances a commercial real estate deal, ranked by priority of payment and security. Senior debt sits at the bottom with first priority, lowest risk, and lowest return.
Common equity sits at the top with last priority, highest risk, and highest return. Each layer in between trades risk for return at a different point on the curve.
A typical institutional capital stack might include senior mortgage debt at 60% loan-to-value, mezzanine debt or preferred equity filling another 15% to 20%, and common equity covering the remaining 20% to 25%. The senior lender has a first lien on the property and gets paid first; the mezzanine lender gets paid next, secured by a pledge of equity interests rather than by the real estate itself; preferred equity ranks behind debt but ahead of common; and common equity collects whatever remains.
The capital stack matters because it determines who absorbs losses first when things go wrong. A 10% drop in property value wipes out the bottom 10% of the capital stack first, usually some or all of the common equity.
A 30% drop starts cutting into preferred equity. A 50% drop reaches the mezzanine layer.
Senior debt is only impaired in catastrophic scenarios. Understanding this ordering is the foundation of CRE risk analysis.
Capital stack design also drives returns. More debt (higher leverage) increases potential equity returns when the deal works but accelerates losses when it doesn't.
Adding mezzanine debt or preferred equity lets the sponsor reduce common equity needs and increase the equity multiple, but adds another paid claim ahead of the common position. These tradeoffs are at the heart of every institutional CRE financing decision.
A typical institutional stack runs, from bottom to top, senior mortgage debt (often around 60% loan-to-value), mezzanine debt or preferred equity filling another 15% to 20%, and common equity covering the remaining 20% to 25%.
Senior debt has a first lien on the property. Mezzanine debt sits above it, secured by a UCC Article 9 pledge of the ownership entity's equity interests. Preferred equity ranks behind all debt but ahead of common, and common equity collects whatever remains after every other claim is paid.
The order of the stack determines who absorbs losses first when value falls. A 10% drop in property value wipes out roughly the top 10% of the stack, usually some or all of the common equity, before touching anything below it.
Deeper declines cut into preferred equity, then mezzanine debt; senior debt is impaired only in severe scenarios because it is repaid first and secured by a first lien. This ordering is the foundation of CRE downside analysis.
Each step up the stack accepts more risk for a higher expected return. Senior lenders take the least risk and earn a fixed, capped return; common equity takes the most risk and keeps all upside after the other layers are paid.
Because higher layers are paid last and cushion the layers below, they demand higher yields or promotes. Balancing how much senior debt, mezzanine, and preferred to place against common equity is the central tradeoff in every institutional CRE financing decision.
The capital stack is the ordered set of all debt and equity financing a commercial real estate deal, ranked by priority of repayment and security. Senior debt sits at the bottom with first priority and the lowest return; common equity sits on top with last priority and the highest return.
The four typical layers, from bottom (safest) to top (riskiest), are senior debt, mezzanine debt, preferred equity, and common equity. Not every deal uses all four, but they always stack in that priority order.
Cash flow and sale proceeds pay senior debt first, then mezzanine debt, then preferred equity, then common equity. Losses run in the opposite direction, hitting common equity first and reaching senior debt only in severe declines.
Senior secured debt has a first lien on the property, is paid first, and earns a fixed return. Preferred equity has no lien but ranks ahead of common equity and usually earns a fixed preferred return. Common equity is paid last, bears the first losses, and keeps all remaining upside.
Higher layers are repaid only after the layers below them, so they absorb losses sooner and have weaker security. To compensate for being later in line and taking the first losses, each higher layer demands a higher expected return.
Both fill the gap between senior debt and common equity, but mezzanine debt is a loan secured by a UCC pledge of the ownership entity's equity interests, while preferred equity is an equity position with no lien that ranks behind all debt. Mezzanine sits above preferred equity in repayment priority, and most deals use one or the other rather than both.
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