Background. Field hospitals have been established as part of the COVID-19 pandemic response in a range of countries including the Kingdom of Saudi Arabia. Assess input, monitor activities and track output can be used to identify whether field hospitals are meeting their intended targets. Method. Based on a case study approach, the reported results include field hospital construction project performance outcomes, a description of the design process and the development and application of key performance indicators to assess field hospital efficacy.Result. Each of the logic model component (i.e. input, activities and output) has tailored indicators that address different aspects of field hospital; from the infrastructure work to the wider impacts on services.Conclusion. The logic model components and related KPIs can be extremely important in terms of providing insights into how to achieve the field hospital’s objectives.