Willmeng starts $7B Phoenix mixed-use project, companion to TSMC site | Dump Trucks Charlotte NC

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A $7 billion “city within a city” has broken ground north of Phoenix. 

The sprawling, 2,300-acre mixed-use project seeks to capitalize on the “immediately adjacent” $65 billion Taiwan Semiconductor Manufacturing Company semiconductor fabrication campus and develop a hub for science and innovation as talent is attracted to the region.

Willmeng Construction, headquartered in Phoenix, has turned dirt on the Halo Vista project and will lead the initial construction phase of critical horizontal infrastructure and site preparation, according to a March 26 announcement. 

The master plan for the site features nearly 30 million square feet of mixed-use capacity, including space reserved for industrial, manufacturing, office, retail, residential and educational end users. Some of the development’s first tenants include Costco, an auto mall with 11 land parcels available for dealers, per a spokesperson, and a five-story dual-branded Marriott hotel with Courtyard and Residence Inn properties.

New York City-based Mack Real Estate Group and Los Angeles-based McCourt Partners are co-developing the project. The two firms initially unveiled the project’s name in 2024, following the Arizona State Land Department’s decision to award the development rights to an affiliate of MREG. 

“We’re excited to get this project started and to begin to see the potential that Halo Vista holds for the Valley and even on a larger scale,” said James Murphy, Willmeng’s CEO, in the news release.

The forthcoming development will be situated along Interstate 17, which runs north to south through Arizona from Flagstaff to Phoenix, and Arizona State Route 303, also known as Loop 303, a freeway in the Phoenix metropolitan area.

The onshoring boom

The TSMC Phoenix campus is vital to the Halo Vista development. It’s the best example of the region becoming a hot bed for builders looking to capitalize on the semiconductor space.

This year, the city’s construction market has entered a more balanced environment, according to Phoenix-based general contractor LGE Design-Build’s recent construction outlook report.

“The Phoenix market entered late 2025 showing clear signs of stabilization after several

years of outsized growth and elevated delivery volumes,” the report read. “Across all major product types, demand remains intact, but the environment favors cost control with increased emphasis on projects that align closely with tenant demand and market timing.”

Indeed, PCL Construction, whose U.S. headquarters are in Denver, opened a commercial building office in Phoenix last May after it pegged the city as a critical growth hub for aviation, hospitality, commercial and retail development. Further, Boston-based Suffolk hired Clem Wood as the company’s executive vice president of advanced technology, which reflects its drive to push into high-growth advanced tech markets.