This is a fixed-price design-bid-build contract to construct a five-story command and control facility at Naval Air Station Key West, Florida. The project magnitude is between $250,000,000 and $500,000,000. The work includes specialized secure spaces, redundant mechanical and electrical systems, and construction to withstand severe weather. The solicitation will be available for download no earlier than 15 days after this notice is posted, and proposals will be due no earlier than 30 days after the solicitation's release. The competition is unrestricted and requires large businesses to submit a subcontracting plan.