The Weighted Average Cost Overrun Risk Score is a blended metric used in property development finance UK to quantify the probability and financial impact of potential cost overruns. It combines individual project cost categories, assigning weights based on their relative significance or exposure, producing a single score that reflects overall risk. Developers and lenders use this measure to evaluate project feasibility, monitor budget sensitivity, and inform financing decisions. By translating complex cost uncertainties into a standardised metric, it enables more precise risk management, supports capital allocation, and integrates seamlessly with stress testing and financial resilience modelling for UK property development projects.
This sits beneath Weighted Average Cost Metrics, introducing a more specific variant of the measure without changing its core interpretation.
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