Finance Guides

The Capital Stack in Property Development: How Senior Debt, Mezzanine and Equity Fit Together

How the capital stack in property development works: the layers of senior debt, mezzanine and equity, who gets paid first, and a worked example on a Sheffield-scale scheme.

By Construction Capital•9 July 2026

The capital stack in property development is the ordered structure of every pound funding a scheme, ranked from the senior debt that gets repaid first to the ordinary equity that gets paid last. Understanding where each layer sits, what it costs, and who has priority when the money comes back is the difference between a scheme that funds smoothly and one that stalls halfway through construction. On this page we set out how the capital stack works in property development, run a worked example on a Sheffield-scale development, and explain how the mix of development finance, mezzanine and equity changes as a developer builds a track record.

What the capital stack is, and why it decides who gets paid first

A capital stack is the full set of funding sources behind a real estate development, arranged in order of repayment priority and risk. Picture it as a column: the safest, cheapest money sits at the bottom, and each layer above it takes more risk in exchange for a higher return. When a completed scheme sells and the cash flows back, it fills from the bottom up. The senior lender is repaid first, then any mezzanine, then preferred equity, and finally the ordinary equity that carries the residual profit.

That ordering is not a matter of etiquette. It is fixed by legal security and by the intercreditor agreement between the parties. The senior debt holds a first charge over the site, so it has the first claim on sale proceeds. Every layer above it is subordinated, meaning it ranks behind. This is exactly why the cost of finance rises as you move up the stack: a lender or investor taking a later position in the repayment queue prices that risk into the rate or the profit share it demands.

For a developer, the capital stack is really a leverage decision. Senior debt is cheap but limited. The higher you want to gear a scheme, the further up the stack you have to reach, and the more expensive each additional pound of funding becomes. Getting the balance right is what keeps a project both fundable and profitable.

The layers of the capital stack, from safest to riskiest

Most UK property development schemes are financed from some combination of the following layers. Not every deal uses all of them, but the ordering is always the same.

Senior debt (first charge). The foundation of nearly every capital stack. A senior development loan funds site acquisition and construction costs, secured by a first charge, and typically covers 55 to 65 percent of gross development value, or GDV. It is the cheapest money in the stack because it is the safest: the senior lender is repaid first from any sale or refinance. Interest is usually retained, so there are no monthly payments during the build.

Stretch senior. A single first-charge facility that pushes leverage higher than standard senior debt, often to 80 to 85 percent of total cost, without layering in a separate lender. It is more expensive than plain senior debt but avoids the intercreditor complexity of adding a second charge, which makes it popular with experienced developers who want higher gearing from one facility.

Mezzanine finance (second charge). Second-charge, subordinated debt that sits above the senior loan and bridges the gap between senior debt and the developer's cash. Mezzanine debt lets a developer reach up to 90 percent of loan to cost. Because this mezzanine debt ranks behind the senior debt in the repayment waterfall, it charges a materially higher rate, commonly 12 to 18 percent per annum in the Sheffield market. As subordinated debt it is riskier for the lender than the senior facility but safer than the equity above it.

Preferred equity. A hybrid layer that sits above mezzanine debt but below ordinary equity. Preferred equity earns a fixed, priority return before the developer's ordinary equity sees any profit, but it does not hold a charge over the site the way debt does. It is a useful way to fill a funding gap without adding a third secured lender to the stack.

Ordinary or common equity. The developer's own capital, plus any joint venture partner's equity, sitting at the very top. Common equity is the riskiest money because it is repaid last, after every layer of debt and preferred equity. In return, common equity takes the residual profit, which is why the return on common equity is by far the highest in the stack when a scheme performs.

The pattern across all five layers is consistent. Senior debt is safest and cheapest; each step up trades priority for a higher required return, until you reach the common equity that shoulders the most risk and keeps the upside.

Who gets paid first: the repayment waterfall

When a scheme completes and units sell, the proceeds are distributed through what lenders call a waterfall. Each layer is paid out in full before the next one receives anything. In a typical stack the order runs: senior debt principal and interest, then mezzanine principal and interest, then any preferred equity return, then the return of ordinary equity, and finally the profit split between the developer and any joint venture partner.

The practical consequence is that the layers at the top only get paid if the scheme performs well enough to clear everything beneath them. If costs overrun or values soften, it is the common equity that absorbs the loss first. That is the trade being made at every level of the capital stack: the further up you sit, the more you can earn, but the more exposed you are if the numbers move against you.

A worked example on a Sheffield-scale scheme

Numbers make the stack concrete. Consider a 20-unit apartment property development scheme in Sheffield of around 15,000 square feet. At Sheffield's average value of £320 per square foot (HM Land Registry Price Paid Data 2025), that gives a gross development value of roughly £4.8 million. Assume total development cost, covering land, build, professional fees and finance, of £3.6 million.

Here is one way the capital stack for that scheme might be built:

Senior debt: £2.64 million, a first-charge facility at about 55 percent loan to GDV, which equals roughly 73 percent of total cost. Priced around 7 percent per annum with interest retained.

Mezzanine finance: £600,000 of second-charge debt, taking total borrowing to 90 percent of loan to cost. Priced higher, around 13 percent per annum, to reflect its subordinated position.

Developer equity: £360,000, or 10 percent of total cost, sitting at the top of the stack and repaid last.

Across the whole scheme, total debt of £3.24 million against a £4.8 million GDV is a loan to GDV of about 67 percent, a level most senior lenders are comfortable with when a mezzanine layer sits behind them. With a gross development value of £4.8 million against £3.6 million of cost, the scheme carries roughly £1.2 million of gross profit before finance, a healthy profit on cost even after the higher mezzanine coupon is paid. You can model your own layer split using our development finance calculator before you approach any lender.

Where the equity itself comes from matters as much as the debt. Many Sheffield developers do not have the full £360,000 of top-layer equity sitting idle, and this is where an equity partner completes the stack. We arrange joint venture and preferred equity capital for exactly this position, building the capital stack for a Sheffield development where the developer has the scheme and the experience but needs a partner to fund the equity layer.

How the stack changes with developer experience

The shape of the capital stack is not fixed. It shifts with a developer's track record, because experience is what lenders price against.

A first-time or early-stage developer will usually find senior lenders cap leverage lower, perhaps 55 percent of GDV rather than 65 percent. That leaves a wider gap to fill higher up the stack, which means more mezzanine finance, more equity, or both. Because those upper layers are the expensive ones, a thin track record makes the blended cost of the whole stack higher.

An experienced developer with several completed schemes commands the opposite. Senior lenders extend more leverage, stretch senior becomes available as a single facility, and the equity requirement shrinks. Some expert developers reach 100 percent of project costs by bringing in a joint venture equity partner who funds the entire equity layer in exchange for a profit share, typically split somewhere between 50/50 and 60/40, often with no personal guarantee. Sheffield's planning approval rate of 82 percent (Sheffield City Council Planning Annual Report 2024/25) helps here too: a market where well-prepared schemes reliably win consent gives lenders confidence to lend further up the stack.

Intercreditor agreements and second charges

The moment a capital stack has more than one lender, the relationship between them has to be documented. That is the job of the intercreditor agreement. It is the legal deed between the senior lender and the mezzanine lender that sets out who ranks where, who can enforce their security and when, how long a junior lender must stand still before acting, and how sale proceeds are divided in the waterfall.

The second charge is the security that puts the mezzanine lender in its place in the queue. The senior lender holds the first charge and is repaid first; the mezzanine lender holds a second charge behind it. Without a signed intercreditor agreement, most senior lenders will not allow a second charge to be registered at all, so this document is a precondition of any layered stack, not an afterthought. We manage the intercreditor negotiation between senior and mezzanine lenders as part of arranging the facility, which keeps both lenders aligned and the completion on schedule.

Financing each layer: banks, specialist lenders and investors

Different layers of the capital stack are financed by different types of lender and investor, and knowing who provides what shortens the search for finance. Senior development finance usually comes from specialist development finance lenders and challenger banks rather than high-street mortgage providers, because a development loan is drawn in stages against build progress rather than advanced in one lump like a residential mortgage. Mezzanine debt is provided by dedicated mezzanine funds, private credit desks and family offices that are comfortable holding a second charge behind the senior debt. Preferred equity and common equity come from property investors, joint venture partners and, on larger commercial property development schemes, institutional capital seeking real estate investment returns.

The mix also shifts with the type of scheme. A commercial or mixed-use project draws on commercial lenders and commercial mortgage providers who assess tenant covenants and yields, while a residential project leans on the residential development market. Whatever the asset, the ordering of the stack is the same: senior debt, then mezzanine debt, then equity, each investor taking a different slice of the project's risk and return.

It is worth noting that development finance of this kind is not regulated by the Financial Conduct Authority when the borrower is a company developing for profit, because it is unregulated commercial lending rather than consumer mortgage lending. That is why the financing of each layer is negotiated deal by deal and pricing reflects the risk of each position in the stack rather than a standard mortgage product. As a development finance broker we source each layer from the right part of the market, whether that is a bank senior facility, a mezzanine fund, a bridge loan to secure a site ahead of planning, or an equity investor to complete the top of the stack.

Short-term bridging finance also has a place in the stack before the main development finance is drawn. A bridge loan or bridging finance can secure a site ahead of planning, after which the capital stack for the property development scheme is built out with senior debt, mezzanine debt and preferred equity in the usual order. Bridging loans and development loans of this kind are unregulated commercial finance, priced on the risk of the specific project.

At the end of the scheme, the finance in the stack is repaid or refinanced. Many Sheffield developers sell the completed units to clear the development finance, while others refinance onto a longer-term commercial mortgage or buy-to-let mortgages to hold the property, supported by Sheffield's average rental yield of 5.8 percent. Development exit finance can also refinance the senior debt at practical completion to give more time to sell. Either way, the exit is what unwinds the capital stack and returns each layer of finance to its investor in priority order.

Common capital stack mistakes

A handful of avoidable errors account for most of the stacks that come apart during a build.

Over-gearing on thin margins. Reaching for 90 percent loan to cost on a scheme with only 18 percent profit on cost leaves almost no cushion. A small cost overrun then wipes out the equity return entirely.

Ignoring the blended cost. Developers often fixate on the headline senior rate and forget that adding an expensive mezzanine or preferred equity layer raises the average cost of the whole stack. The blended figure is what actually determines the scheme's viability.

No contingency in the stack. A capital stack sized exactly to the cost plan has no room for the overruns that most builds encounter. Building a contingency into the funding, not just the budget, is what stops a scheme stalling for the sake of a final tranche.

Leaving the equity to last. Lining up senior and mezzanine debt but assuming the equity will appear is a frequent cause of collapsed deals. The top layer needs to be committed before the debt is drawn, which is why arranging the equity partner early is as important as sourcing the senior facility.

Get the layers in proportion and the stack funds a scheme cleanly. Get them wrong and even a profitable site can run out of money before practical completion.

Frequently asked questions

What is a capital stack in property development?

A capital stack is the complete set of funding behind a development, ordered by repayment priority and risk. It runs from senior debt at the bottom, which is cheapest and repaid first, up through mezzanine finance and preferred equity, to ordinary equity at the top, which is riskiest and repaid last but takes the residual profit.

Who gets paid first in the capital stack?

The senior debt is paid first. Because it holds a first charge over the site, the senior lender has the first claim on any sale or refinance proceeds. Mezzanine debt is paid next, then preferred equity, then the return of ordinary equity, and finally the profit split. This order is set by the security held and by the intercreditor agreement between the lenders.

What is an example of a capital stack?

On a £4.8 million GDV Sheffield scheme costing £3.6 million, a stack might be £2.64 million of senior debt at 55 percent loan to GDV, £600,000 of mezzanine finance taking total borrowing to 90 percent loan to cost, and £360,000 of developer equity at the top. Each layer is repaid in turn from the sale proceeds.

How much of the capital stack can debt cover?

Senior debt alone typically covers 55 to 65 percent of GDV. Adding stretch senior can reach 80 to 85 percent of cost from a single facility, while layering mezzanine finance behind a senior loan can take total debt to around 90 percent of loan to cost. The remaining gap is filled by equity, whether the developer's own or a joint venture partner's.

If you are structuring the capital stack for a scheme in Sheffield or across South Yorkshire, get in touch for indicative terms within 48 hours.

Data sources: HM Land Registry Price Paid Data 2025; Sheffield City Council Planning Annual Report 2024/25. Rates and figures are indicative and subject to change; finance is arranged by Construction Capital.

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