How Full Capital Stack Funding Is Structured

Few property projects are funded from a single source. Behind most acquisitions and developments sits a combination of borrowing and investment, arranged in layers. That combination is known as the capital stack, and understanding how it fits together is the starting point for structuring any larger transaction.

What Is the Capital Stack?

The capital stack is the full set of funding behind a project, ordered by priority of repayment. If the project performs, every layer is repaid; if it underperforms, the layers absorb losses in reverse order. The usual layers are:

• Senior debt. The largest and cheapest layer, secured by a first charge over the property. It is repaid first and therefore carries the least risk.
• Junior debt. A second layer of borrowing that ranks behind the senior loan, often called mezzanine finance. It fills the gap between what the senior lender will advance and the total cost of the project, and is priced higher to reflect its position.
• Equity. The owner’s own capital, and sometimes that of outside investors. It stands last in line for repayment, takes the most risk and receives whatever value the project creates above its debts.

Some structures add refinements, such as preferred equity, which sits between junior debt and ordinary equity, but the ranking principle is always the same: each layer is priced to its place in the queue.

Why Combine Layers at All?

The simplest structure, one senior loan plus the owner’s equity, is often not the most efficient one. Adding a junior layer reduces the equity a sponsor must commit to each project, which can be the difference between doing one scheme at a time and running several. The blended cost of the whole stack usually rises, so the question is whether the return on the equity released is worth the extra cost of the layer that replaces it.

How the Layers Fit Together

Where two or more lenders sit in the same stack, their relationship is governed by an intercreditor agreement: who is repaid first, who can enforce and when, and what happens if the project needs more time or money. These arrangements are negotiated, not standard, and they matter most precisely when a project is under pressure. A structure that looks efficient on paper can prove rigid in practice if the intercreditor terms were an afterthought.

What Lenders Look At

Every lender in the stack looks at the same fundamentals, meaning the asset, the sponsor’s track record, the business plan and the exit, but each judges them from its own position. The senior lender cares about total leverage across the whole stack, not just its own loan. The junior lender, standing closer to the risk, focuses on the realism of the plan and the strength of the people executing it. Much of the junior layer in today’s market is provided by private credit rather than banks.

How Full Stack Funding Is Arranged in Practice

Full capital stack funding rarely comes from one institution. In practice it is assembled: a senior lender and a junior lender with compatible appetites, brought together under intercreditor terms both can accept, alongside the sponsor’s equity. The work lies in the sequencing: agreeing the senior terms, structuring the junior layer around them, and keeping both processes moving to the same completion date. That coordination is a large part of what capital advisory work involves on stacked transactions.

The capital stack is best treated as a design decision rather than an afterthought. Decide how much risk the equity should carry, price each layer honestly against its position, and make sure the documents between the layers will still work on a bad day as well as a good one.