What type of estimating method would you use if you have little information about the project?

Using a top-down estimating method is appropriate when there is limited information about the project. This approach allows the estimator to start with a broad overview of the project, often using existing data from similar projects or overall costs per square foot, and then breaks down that total into project components and tasks based on proportionate allocations.

In situations where detailed information is scarce, top-down estimating can provide a quick and relatively straightforward means to derive an estimate by applying known or historical figures. This method is particularly useful during the early stages of project planning, where specific details and data have yet to be finalized. It supports decision-making and budget allocations without needing exhaustive detail for each project element.

This estimating technique leverages expert judgment and historical data, making it feasible to provide preliminary numbers, which are essential for project feasibility assessments, funding requests, and initial planning phases.