United Integrated Services Corp. Buys 28 Acres at Mack Innovation Park for $41.1 Million

PHOENIX, AZ (April 21, 2026) — Land sales are accelerating at Mack Innovation Park in Deer Valley as semiconductor-related users continue moving to secure sites near Taiwan Semiconductor Manufacturing Co.’s north Phoenix campus. Mack Innovation Park, near Interstate 17 and Loop 101, already includes more than 1 million square feet of industrial space, while Mack Real Estate Group still controls roughly 80 additional acres around the initial phase.

The latest transaction closed March 24, when Mack sold about 28 acres of vacant land within the master-planned industrial park for $41,055,000 to United Integrated Services Corp., a supplier tied to the semiconductor ecosystem. The buyer plans to develop a 480,000-square-foot industrial building on the site. Bob Lundstedt, vice chairman with DAUM Commercial, represented the buyer in the deal.

The sale adds to a string of recent land transactions at the project. Mornstair acquired about 51.9 acres for $59,924,000 on Feb. 10, and Sunlit Chemicals purchased 10 acres for $8,712,000 on Dec. 19. The flurry of activity reflects semiconductor suppliers’ growing push to establish a footprint near TSMC and related manufacturing operations in north Phoenix.

Another major transaction at the park came in December, when Westcore Properties acquired Site A of Mack Innovation Park for $90,700,000. That portion includes three multi-tenant industrial buildings on about 22 acres. The buildings range from 62,831 square feet to 201,189 square feet and were reported as fully leased at the time of sale.

The project appears to be validating Mack’s strategy of building speculative industrial space first, then marketing nearby land to future owner-users once demand is proven. With initial buildings leased and more users entering the market, Mack Innovation Park is emerging as one of the clearest examples of how TSMC’s presence is reshaping industrial development patterns in Deer Valley.