Allen Place to add 109,000-square-foot office flex project in Allen

Allen’s US 75 corridor is set for another major addition as Gillett Commercial moves ahead with Allen Place, a 109,000-square-foot office and flex project between McDermott Drive and Bethany Drive. The company bought 6.64 acres from the Allen Economic Development Corp. for the development, which is planned to break ground this year and open in fall 2027. Because the building will be available for both sale and lease, the project looks less like a one-off speculative bet and more like a test of how much demand still exists for flexible workspace in one of Collin County’s fastest-changing corridors.

That demand matters in a city that now counts 113,300 residents and sits inside a county that reached 1,251,273 residents in 2025. Allen’s median household income is $137,627, and more than 60% of adults hold a bachelor’s degree or higher, a profile that helps explain why the city keeps pitching itself to financial services, professional services and information technology firms. Allen EDC says there are 3.8 million workers within a 30-minute drive, a selling point that places the city squarely in the center of the Dallas-Fort Worth metroplex labor market.

Allen Place also fits a broader land-use strategy along the highway. The city has been pushing tech-flex product at Allen Tech Hub in the Watters Creek District, where floor plates reach 25,000 square feet and parking is 90% garage-covered, with direct access to restaurants, shops, conference space and trails. Farther north, 121 Tech Park started with four buildings totaling 340,000 square feet in phase one and is planned to grow to about 740,000 square feet. Together, those projects show Allen trying to reserve well-located land for higher-end users rather than low-intensity development.

Gillett Commercial has already shown it can land the kind of tenants Allen wants. The firm completed The Asher, a downtown Allen business center, and Allen Exchange, a three-building flex development near US 75 designed for office, medical and showroom users. Allen Exchange later sold in three transactions, including a 50,864-square-foot building acquired by Texas Star Pharmacy, a 10,600-square-foot building bought by Well Go USA Entertainment, and another building with part leased by Clearstone Dental.

That track record suggests Allen Place is arriving in a market that has already absorbed flex space, not merely one hoping for it. Allen EDC says its supported projects have produced $46 billion in economic impact, 155 projects and 18,542 direct jobs, with AEDC-backed developments accounting for 51% of the city’s jobs and $2.162 billion in direct taxes since 1993. For Allen, the next phase of growth is no longer theoretical. It is moving up the corridor.