Understanding the Capital Stack in Property Development

## What Is the Capital Stack? The capital stack is the structured combination of different funding sources used to finance a property development project. Think of it as a layered cake: each layer represents a different type of capital, with its own cost, risk profile, and priority in the repayment waterfall. Understanding the capital stack is fundamental to structuring your project finance efficiently — getting it right can mean the difference between a 15% and a 60% return on your equity. In property development, the capital stack typically consists of up to four layers: 1. **Senior Debt** (first charge) — the cheapest and largest layer 2. **Mezzanine Debt** (second charge) — more expensive, filling the gap between senior debt and equity 3. **Preferred Equity** — investment capital with priority returns 4. **Common Equity** — the developer's own capital, bearing the highest risk and highest potential return Not every project uses all four layers. Many Southwark developments are funded with just senior debt and equity, while more sophisticated structures employ mezzanine and preferred equity to optimise returns. ## Layer 1: Senior Debt Senior debt is the foundation of most development capital stacks. It is a first-charge loan secured against the development site, meaning the senior lender has first priority in the event of a default. Because of this priority position, senior debt carries the lowest risk for the lender and therefore the lowest cost for the developer. ### Typical Terms for Southwark Projects - **Loan-to-Cost**: Up to 70% of total project costs - **Loan-to-GDV**: Capped at 65% of gross development value - **Interest Rate**: 0.65% to 1.0% per month - **Arrangement Fee**: 1-2% of the facility - **Term**: 6-36 months ### Practical Example Consider a warehouse conversion project in Bermondsey with total costs of £2 million and a projected GDV of £3.5 million: - LTC cap: 70% x £2m = £1,400,000 - GDV cap: 65% x £3.5m = £2,275,000 - Maximum senior debt: £1,400,000 (the lower figure) - Developer equity required: £600,000 At 0.75% per month over 12 months with a 1.5% arrangement fee, the total cost of senior debt on this project would be approximately £128,000. ## Layer 2: Mezzanine Debt Mezzanine debt occupies the layer between senior debt and equity. Secured by a second charge (subordinate to the senior lender), mezzanine carries higher risk for the provider and therefore commands a higher price. Its purpose is simple: to reduce the amount of equity the developer needs to invest. ### Typical Terms - **Coverage**: From 70% to 85-90% of total project costs - **Interest Rate**: 1.0% to 1.5% per month - **Arrangement Fee**: 1.5-2.5% - **Interest**: Rolled up and repaid on exit ### Continuing Our Bermondsey Example Adding mezzanine finance to the Bermondsey warehouse conversion: - Senior debt: £1,400,000 (70% LTC) - Mezzanine debt: £400,000 (covering 70-90% LTC) - Combined debt: £1,800,000 (90% LTC) - Developer equity required: £200,000 (reduced from £600,000) The mezzanine tranche at 1.2% per month over 12 months with a 2% arrangement fee costs approximately £65,600. Total debt cost rises from £128,000 to £193,600 — but the developer's equity requirement has dropped from £600,000 to £200,000. ## Layer 3: Preferred Equity Preferred equity sits between debt and common equity. Unlike debt, it does not have a fixed interest rate or a security charge on the property. Instead, preferred equity investors receive a priority return — typically a fixed percentage of their investment — before profits are split between the common equity holders. Preferred equity is less common in smaller Southwark developments but appears in larger schemes where institutional investors participate. It offers the developer a way to bring in capital without the rigid repayment obligations of debt. ### Key Characteristics - No security charge on the property - Priority return (typically 8-15% per annum) paid before profit split - Subordinate to all debt in the repayment waterfall - More expensive than debt but cheaper than giving away common equity ## Layer 4: Common Equity Common equity is the developer's own investment in the project — the cash that sits at the bottom of the capital stack with the highest risk but the highest potential return. Common equity holders are last to be repaid: all debt must be cleared and any preferred equity returns paid before the developer receives their profit. The beauty of the capital stack is that by using debt and other layers to fund the majority of project costs, the developer's equity — and therefore their risk exposure — is minimised, while their return on that reduced equity is maximised through leverage. ## The Power of Leverage: A Southwark Case Study Let us compare three capital structures for the same Bermondsey warehouse conversion project (£2 million total costs, £3.5 million GDV, £500,000 net profit after all costs including finance): ### Structure A: Senior Debt Only - Senior debt: £1,400,000 (70% LTC) - Developer equity: £600,000 - Finance costs: £128,000 - Net profit: £500,000 - **Return on equity: 83%** ### Structure B: Senior Debt + Mezzanine - Senior debt: £1,400,000 (70% LTC) - Mezzanine: £400,000 (70-90% LTC) - Developer equity: £200,000 - Finance costs: £193,600 - Net profit: £434,400 (lower due to higher finance costs) - **Return on equity: 217%** ### Structure C: Senior Debt + Mezzanine + Equity Partner - Senior debt: £1,400,000 (70% LTC) - Mezzanine: £200,000 (70-80% LTC) - Equity partner: £200,000 (80-90% LTC, taking 30% of profit) - Developer equity: £200,000 - Finance costs: £161,000 - Net profit to developer: £237,300 (after equity partner's share) - **Return on equity: 119%** But here is the critical insight: in Structure B, the developer has freed up £400,000 compared to Structure A. If that £400,000 is deployed into a second project generating similar returns, the developer's total profit across both projects is significantly higher than running a single project at lower leverage. ## Choosing the Right Structure for Your Southwark Project The optimal capital stack depends on several factors: - **Your available capital**: If you have limited equity, mezzanine or equity partners enable you to pursue projects beyond your cash resources - **Your risk appetite**: More leverage means higher returns but also higher risk if the project underperforms - **The project margin**: Tight-margin projects cannot absorb the cost of multiple debt layers - **Your experience**: First-time developers will typically use simpler structures (senior debt + equity) while building their track record - **The number of projects you want to run**: If you want to operate multiple Southwark projects simultaneously, keeping equity per project low through leverage is the way to scale We help developers across Southwark structure their capital stack to match their specific circumstances, project type, and growth ambitions. Whether you need a simple senior facility for your first Camberwell conversion or a complex multi-layered structure for a major Canada Water scheme, we design the funding to fit.