Located within Port San Antonio—recognized as one of the nation’s fastest-growing innovation hubs—639 Billy Mitchell Blvd offers a versatile Class A flex space designed for modern business operations. The property provides reinforced tilt-wall construction, an 18-foot clear height, and fully sprinklered interiors for safety and compliance. With a 55-foot standard column spacing and electrical service of 277/480 volts, 3-phase power, the space supports a wide range of specialized uses, including office, R&D, or light manufacturing. In addition to its high-quality infrastructure, tenants benefit from custom-built office finishes tailored to business needs. The site delivers exceptional connectivity, situated within minutes of major transportation corridors including I-10, I-35, I-37, and Loop 410. Central to the Port San Antonio campus, the property is part of a thriving community dedicated to advanced technology and aerospace innovation, providing access to workforce, resources, and a growing ecosystem of industry leaders.