At Starbase, a giant is taking shape. It is rising on the footprint once occupied by the old High Bay and the Stargate building, wedged between the parking garage, Starfactory, and Mega Bay 1. The Gigabay has spent 2026 climbing steadily toward the sky, and it's now entering its final stretch.

The scale is difficult to overstate. Reported planning figures put the building at roughly 116 meters tall, 110 meters long, and 130 meters wide. At approximately 116 meters tall it will be encompassing 1.32 million cubic meters of interior space. Where the two existing Mega Bays at Starbase together offer just six workstations, once finished, Giga Bay will be able to house at least 24 stations.

Construction has moved quickly. SpaceX filed permits to build the 65,000-square-metre facility, starting construction July 1, 2025, with completion expected by December 2026. A project estimated at around $250 million. By the first week of January 2026, SpaceX had raised the massive steel structure providing the structural support for the Gigabay. By mid-April 2026, active construction of the main building structures continued, with facade work having started a month earlier. 

The purpose behind all that steel is throughput. Where Starfactory produces the parts, Gigabay is where the full Starship and Super Heavy Boosters will be assembled and prepped. The two buildings are designed to run as a continuous pipeline. Elon Musk has said the Gigabay is designed to support the production of 1,000 Starships per year.

That figure remains aspirational against a launch cadence still measured in single-digit flights, but the building itself is real, rising, and nearly enclosed. Its Florida twin at Roberts Road is racing along the same timeline. For now, all eyes are on Boca Chica, where the biggest structure Starbase has ever seen is closing in on its December finish.