Comparison of the old and new Gigafactory plans on top of a recent satellite photo of the project.

The final size of Tesla’s $5 Billion battery factory is growing. Originally announced to occupy up to 10 million square feet (930,000 square meters), the Gigafactory is now expected to reach 13.6 million square feet (1.3 million square meters), according to a senior Tesla executive talking to Fast Company. The new number is a 36% increase to the two-story structure’s planned size, and is the equivalent of adding the entire square-footage of One World Trade Center to the project. expand full story