When working on a design/build project, a firm grasp of its intended purpose is critical to get the project’s design and estimate on the right track early. Recently, I participated in a discussion with a gas facility’s project team to establish design parameters for a control room project. As I took notes, I noticed that the terms “shelter-in-place” and “safe haven” were being used interchangeably to describe the building’s attributes by members of the team, as if they were the same. I immediately recognized the need to research the designations to educate the team on the unique characteristics of each. After some research, here’s what I found.