Terafab In Grimes County Could Be The World's Largest Building

Elon Musk gives new meaning to "Everything is bigger in Texas!" His newest project will be the largest building on earth.

Elon Musk’s Tesla and SpaceX Announce $16.8 Billion Project in Rural Texas

Elon Musk is launching a new venture unlike any other. Tesla and SpaceX plan to construct Terafab, a gargantuan semiconductor production complex in Grimes County, Texas. The initial construction stage carries an estimated price tag of $16.8 billion. When fully completed, the facility is projected to span over 100 million square feet, a footprint that would dwarf every current structure on the planet.

Terafab Will Be the Largest Building on Earth

To put Terafab’s proposed footprint into context, it easily surpasses the current world record holder, the New Century Global Center in Chengdu, China, which covers roughly 18.9 million square feet. Terafab’s finished layout would measure more than five times that area. Compare this to:

The Pentagon (6.6 million square feet)

Mall of America (5.6 million square feet)

Apple Park (2.82 million square feet)

Terafab's Sci-Fi City Design

Whether the structure ultimately secures the global record will depend on whether construction follows the proposed scope. Early designs showcase a wing-like layout integrated into the local landscape, capped with a translucent roof system. On X, Musk envisioned the complex as a futuristic "sci-fi city" designed to be beautiful despite its immense footprint.

In-House Silicon Production for AI and Space Tech

Tesla describes the project as an essential move to secure critical electronic components, since global semiconductor production cannot meet the future processing demands of both companies. The ultimate objective is to output more than one terawatt of annual computing capacity.

Terafab: A One Stop Shop for All Things Space X

According to SpaceX, the site will unify all major manufacturing stages, logic chip production, memory fabrication, advanced packaging, and testing, under a single roof. Semiconductors produced at Terafab are intended for specialized applications, such as:

-Edge computing and real-time inference for Tesla’s autonomous Cybercabs and Optimus humanoid robots.

-High-performance processors tailored for SpaceX’s planned space-based data center infrastructure.

Economic Footprint

The project is anticipated to generate at least 3,000 primary positions, targeting job seekers from Grimes County and neighboring Brazos County. Historical hiring data from other Texas-based Tesla and SpaceX operations indicates that 60% to 80% of new employees are recruited from local communities, a trend expected to continue at the new site.

Local Pushback

As we have seen with recent data center projects in the state, there is local pushback on the project. Hundreds of residents gathered at a county meeting shortly before the announcement to express concern regarding tax relief packages granted to the developers and what locals describe as a lack of public transparency surrounding the deal.

Environmental Issues

Terafab will occupy land near the Gibbons Creek Reservoir, a body of water previously used by a coal-fired power plant. To avoid straining local groundwater resources, a sensitive issue across Texas, SpaceX confirmed that industrial cooling operations will draw directly from the reservoir.