TSMC's Arizona spillover

Developers broke ground on Halo Vista on March 26, a $7 billion project wrapping around Taiwan Semiconductor Manufacturing Co.’s north Phoenix campus. (gpec.org) Halo Vista covers about 2,300 acres next to the chipmaker’s site and is planned for nearly 30 million square feet of industrial, office, retail, residential and educational space. (gpec.org) The first phase starts with roads, utilities and site work led by Phoenix-based Willmeng Construction, while the first named tenants include Costco, an auto mall with about 11 dealers and a dual-branded Marriott hotel. (gpec.org) The project sits beside a semiconductor fabrication plant, or fab, where chips are made on silicon wafers inside highly controlled clean rooms. Taiwan Semiconductor Manufacturing Co.’s Arizona complex began high-volume four-nanometer production in late 2024, giving the area a large new base of workers, suppliers and freight traffic. (tsmc.com) Taiwan Semiconductor Manufacturing Co. said in March 2025 that it planned to lift its total United States investment to $165 billion, adding three more fabs, two advanced-packaging plants and a research and development center in Arizona. (pr.tsmc.com) On its Arizona site page, the company says the Phoenix plans now include six wafer fabs, two advanced-packaging facilities and a research and development team center, with the first three fabs expected to create 6,000 direct jobs. (tsmc.com) City approvals moved ahead before the groundbreaking. On December 18, 2024, the Phoenix City Council adopted a development agreement tied to public infrastructure improvements for Halo Vista. (phoenix.gov) KJZZ reported the approved plan would surround the Taiwan Semiconductor Manufacturing Co. campus on three sides near Interstate 17 and Loop 303, with about 12 million square feet of industrial space and 3.5 million square feet of flexible technology and office space. (kjzz.org) Council documents cited by KJZZ said Halo Vista could support 62,000 jobs at full build-out, and the city agreed to reimburse developers for public infrastructure such as wastewater lines, streets and traffic signals. (kjzz.org) Taiwan Semiconductor Manufacturing Co. says its Arizona operation already employs more than 3,000 people, and the company expects supplier expansions to bring thousands more jobs. Halo Vista is being built to put housing, hotels, stores and industrial space next to that growing chip corridor instead of miles away. (tsmc.com)