TSMC to bid on massive site for expansion in Phoenix ‘innovation corridor’ Article originally posted on AZ Central on September 15, 2025 Taiwan Semiconductor Manufacturing Co. is eyeing land south of Loop 303, across the freeway from its north Phoenix campus, for expansion. The semiconductor giant signed on as an applicant of a massive rezoning in north Phoenix, which was first submitted by PulteGroup in late 2024. The land, which is owned by the Arizona State Land Department, must also go through a due diligence process and be sold at a public auction. Chris Dotts, a spokesperson for TSMC, said the company will need additional land to accommodate planned expansion of the fabrication facility. The expansion, which was announced in March 2025, brings TSMC’s overall planned investment to $165 billion, including six chip fabrication facilities, two advanced packaging facilities and a research and development center. The site, called NorthPark, was proposed as six “master-plan development parcels” including one that was designated as an “innovation corridor.” The overall site is 6,355 acres. ”We are collaborating with PulteGroup on NorthPark, a high-quality mixed-use master planned community directly south of our current operation in north Phoenix,” Dotts said in an email. “NorthPark stands apart for its historic allocation and donation back to the City of Phoenix of 2,000 acres of preserve land. NorthPark’s planning also includes an “Innovation Corridor” — an approximate 900-acre plot directly across the 303 from TSMC Arizona’s existing facility that is a strong option for our planned expansion.” When could TSMC start construction on the land? Dotts said the company is now participating in Phoenix’s rezoning process for the site. State land is required to be sold at a public auction, so in order to acquire it, TSMC would need to bid for it. Lynn Cordova, a spokesperson for the Arizona State Land Department, said the parcel is in “the early stages” of going to auction. She said the application is currently going through “due diligence,” a process in which applicants compile environmental assessments, cultural resources surveys, appraisals and other types of reports on the land. The full process typically takes nine months to a year. “We don’t have an auction date set yet, and we don’t know when that will be,” Córdova said.