This is a market research sources sought notice for a design-build project to repair and connect Buildings 121 and 122 at Homestead Air Reserve Base, Florida, with an estimated construction cost between $1,000,000 and $5,000,000. The scope includes a new enclosed hallway, standing seam metal roof compliant with high-velocity wind zone standards, complex chilled-water HVAC system, perimeter security, and specialized secure administrative and storage spaces. The period of performance for design and construction is 540 calendar days from the Notice to Proceed. Interested firms must submit a capability statement demonstrating relevant past performance on military installation design-build projects involving secure spaces, high-wind roofing, and complex HVAC.