What Are the 4 Key Layers of the Mortgage Capital Stack and How Do They Impact Your Real Estate Investments?

7/30/20245 min read

white and red wooden house miniature on brown table
white and red wooden house miniature on brown table

In real estate finance, the capital stack refers to the layers of financing used to fund a property. These layers represent different levels of risk and reward, with each "tranche" in the stack having a different claim on the property’s cash flows and collateral in the event of default. Understanding the capital stack continuum is essential for real estate investors, especially when navigating various economic cycles, as it can influence investment decisions based on liquidity conditions, interest rates, and market stability.

Allocators—those who manage capital, such as lenders or investors—must decide their position within the capital stack based on both economic expansion and contraction. In periods of expansion, where liquidity is plentiful, riskier positions may become more attractive. Conversely, during contractions, more conservative positions higher up the capital stack, such as senior debt, are typically favored. The structure of the capital stack also defines who gets paid first and who bears the most risk in case of foreclosure or financial stress.

Let’s break down the key components of the mortgage capital stack, from first mortgages to common equity, and explore how these pieces interact within the continuum.

1. First Mortgage (Senior Debt): The Foundation of the Capital Stack

The first mortgage, also known as senior debt, forms the base and is the most secure position in the capital stack. These loans are secured by the property and typically make up 50% to 75% of the property's loan-to-value (LTV) ratio. Senior debt holders have the highest claim on the property’s cash flows and collateral, meaning they get paid first in the event of a sale or foreclosure. This security is what makes senior debt the fulcrum security—the cornerstone that supports the entire structure of the capital stack.

A Notes and B Notes

Within senior debt, you may encounter A Notes and B Notes, each representing a different level of claim on the property's cash flows:

  • A Notes: These are typically the safest tranche within the senior debt structure. They are first in line to receive payments from the property’s income and hold the strongest claim on the collateral.

  • B Notes: Positioned just below A Notes, B Notes carry slightly more risk. In case of financial distress or foreclosure, B Note holders will be paid only after A Note holders. While riskier, B Notes often offer higher returns to compensate for their subordinate position.

In commercial real estate, senior debt lenders have significant control, often prohibiting the introduction of additional subordinate debt through indenture or intercreditor agreements, ensuring that their claim remains unchallenged by other lenders.

2. Subordinate Debt: Second Mortgages and Mezzanine Debt

Subordinate debt includes second mortgages and mezzanine debt. These loans are junior to senior debt, meaning they are paid after the first mortgage holders. Subordinate debt can offer higher returns due to the elevated risk but also comes with less security in the capital stack.

Second Mortgages

A second mortgage is secured by the property, but it is junior to the first mortgage in terms of repayment priority. This means that if the property is foreclosed, the second mortgage holder will only get paid after the senior debt has been fully satisfied. While second mortgages can be lucrative during times of economic expansion, they carry substantial risk in a downturn because the likelihood of recovering investment capital diminishes after senior debt obligations are met.

Mezzanine Debt

Mezzanine debt takes a unique position in the capital stack because it often comes without a direct claim on the property. Instead, it is secured by an ownership interest in the company or entity that owns the real estate. Mezzanine lenders typically provide higher-risk capital, and in exchange, they often receive higher interest rates and equity kickers, which allow them to participate in the upside if the property performs well.

Mezzanine debt is often structured to be flexible, giving lenders the ability to convert debt into equity or gain partial control of the property if the borrower defaults. However, mezzanine debt is highly sensitive to economic downturns, as it ranks low on the repayment scale.

3. Preferred Equity: A Hybrid of Debt and Equity

Preferred equity occupies a middle ground in the capital stack, blending characteristics of both debt and equity. Preferred equity holders are entitled to a fixed return, which is paid before any distributions are made to common equity holders. However, unlike debt, preferred equity does not have a claim on the property and is not secured by collateral.

Preferred equity investors receive their returns before common equity holders but after all debts have been satisfied. This position offers a balance between risk and reward, making it an attractive option for investors looking for higher returns than senior debt but with more security than common equity.

4. Common Equity: The Highest Risk, Highest Reward Position

At the top of the capital stack is common equity, which represents the ownership interest in the property. Common equity holders bear the most risk, as they are the last to be paid if the property generates income or is sold. However, they also have the highest potential for reward, as they receive the remaining profits after all debts and preferred equity obligations are met.

Common equity is the first position to suffer losses in the event of a downturn but stands to gain the most if the property appreciates in value or generates strong cash flow. This layer of the capital stack is often held by the property’s developers, management, or outside investors looking for high-risk, high-reward opportunities.

Additional Considerations: UCC Foreclosure and Tranche Warfare

Two important concepts that further shape the dynamics within the capital stack are UCC (Uniform Commercial Code) foreclosure and tranche warfare.

UCC Foreclosure

In the case of mezzanine loans, UCC foreclosure comes into play. If the borrower defaults, the mezzanine lender, instead of foreclosing on the property itself, forecloses on the ownership interest in the entity that controls the property. This process is governed by the Uniform Commercial Code, allowing mezzanine lenders to take control of the property without going through a traditional real estate foreclosure process. UCC foreclosure can be faster and more efficient but may also lead to conflicts with senior lenders.

Tranche Warfare

Tranche warfare refers to conflicts between different layers of the capital stack, particularly during times of financial stress. For example, senior lenders may block actions taken by mezzanine lenders to foreclose on the property or make management decisions. Mezzanine lenders may attempt to negotiate better terms or use their rights under the UCC to take control. This "warfare" can complicate the resolution process, leading to drawn-out negotiations or legal battles as different classes of investors compete for priority and repayment.

Conclusion: Navigating the Mortgage Capital Stack

The mortgage capital stack represents a continuum of risk and reward that allocators must carefully evaluate, especially in light of where we are in the economic cycle. In periods of liquidity expansion, investors may favor higher-risk positions like mezzanine debt or common equity to maximize returns. Conversely, in times of contraction, senior debt and preferred equity positions become more appealing due to their stability and lower risk.

For real estate investors, understanding the intricacies of the capital stack is essential for managing risk, protecting returns, and navigating the complex financial structures that support property transactions.

At Orgon Bank, we help investors and real estate developers strategically navigate the capital stack to optimize returns while managing risk, no matter the economic climate. Whether you are securing senior debt or seeking mezzanine financing with equity kickers, our team of experts is here to guide you through the process.