During which phase is a Class C estimate typically employed?

A Class C estimate is typically used during the Schematic Design phase of a project. At this stage, the architectural team has developed initial design concepts and layouts, allowing for a more refined yet still preliminary understanding of project scope, materials, and costs.

Class C estimates offer a broad assessment of costs based on limited information. They are based on early project details, including sketches and rough layouts, making them suitable for presenting budget implications early in the design process. This pricing level enables stakeholders to understand potential costs and make decisions about the viability of proceeding with the project before committing to more detailed drawings and specifications that come later.

As projects progress into the Design Development phase and beyond, more accurate estimates (Class B and A) are employed as further details and specifications are developed, making a Class C estimate less applicable in those later stages.