Plans are underway to build what some call a “city within a city’ in north Phoenix. The $7 billion development project will be located at the northwest corner of Interstate 17 and Loop 303.
Officially called Halo Vista, it includes approximately 2,300 acres that form a halo around the Taiwan Semiconductor Manufacturing Company, or TSMC. Phoenix Economic Development Director Chris Mackay said the project is meant to support TSMC’s operations, along with a research and technology park.
"While this is 2,400 total acres, we can see carving off, kind of, some specialty areas. Maybe it's 40 or 50 acres that is biosciences focused,” she said. The City Council agenda later changed the size of the development to 2,300 acres. “Maybe it's 40 or 50 acres that's in emerging technologies or it's in battery technology or in EV, so it’s like-minded companies that have an integrated, a vertical relationship with a chip manufacturing company.”
Mackay recently told Phoenix City Council members the first phase will include retail, office and industrial with restaurants and apartments coming later.
TSMC plans to build three advanced semiconductor fabrication facilities in Phoenix. According to the city, the company’s $65 billion investment is one of the largest foreign direct investments in U.S. history.
In May 2024, Mack Real Estate Group and its partner McCourt Partners, bought the land surrounding TSMC at an Arizona State Land Department auction.
In announcing the project’s name, Richard Mack, CEO of Mack Real Estate Group, said, “It’s not just a science park, and not just a manufacturing district: It’s a community. It’s a city within a city. This is a leading-edge, creative and inviting community surrounding the most leading-edge company in the world.”
Nathan Wright, deputy community and economic development director, said, “We work with national site selectors weekly and some of the comments that we've received are, hey, this is the best shovel-ready site in the United States.”
In December, the City Council is expected to approve a deal to reimburse the developer for the costs of public infrastructure, like water lines and streets.
“All of this is in District 1 and it is fabulous to have it there, but the impact is not just going to be on District 1, it will be on the entire city as well as the region,” said District 1 Councilwoman Ann O’Brien. “I know that Peoria and Glendale and those all around us and all across the state are benefiting from this."
EDITOR'S NOTE: The story has been updated to reflect the new development size reported by the Phoenix City Council agenda.
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