Sensitivity: Build Cost to IRR measures the impact of changes in construction or build costs on a project’s Internal Rate of Return (IRR) within property development finance UK. This analysis enables developers and investors to evaluate project risk, test financial assumptions, and anticipate profitability under different cost scenarios. By adjusting projected build costs, the sensitivity calculation identifies how cost overruns or savings influence overall returns. It is a critical tool in capital stack planning, risk management, and feasibility studies, helping SME property developers optimise finance structures, refine budgets, and maintain targeted investment performance.
This sits beneath Stress Testing & Scenario Analysis, introducing a more specific variant of the measure without changing its core interpretation. It is commonly considered alongside Sensitivity to Build Cost Inflation, as both are closely related measures used to assess similar aspects of performance or risk. In funding terms, Sensitivity : Build Cost to IRR is most commonly encountered in connection with Return Paid from Profit within the property development capital stack.
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