MacDonald‑Miller is honored to share that ENR West has recognized TikTok USDS Bellevue as the 2025 Northwest Best Project in the Best Office/Retail/Mixed-Use category.

Completed on time and within budget in February 2025, the project team also logged zero lost-time or recordable incidents across 59,200 work hours.

Source: ENR

What Did MacDonald-Miller Deliver:

• • HVAC Design-Build Services: Custom solutions for TikTok’s unique workspace requirements
  • Building Automation Integration: Seamless DDC controls and monitoring systems
  • Sustainability Solutions: Energy-efficient mechanical systems supporting LEED goals

How Did Engineering Excellence Set This Mixed-Use Project Apart

As the design-build mechanical partner on the TikTok USDS Bellevue office project, MacDonald-Miller delivered advanced systems that earned the project dual recognition from ENR West and NAIOP Washington, demonstrating what is possible when exceptional engineering meets outstanding project execution.

Our custom HVAC design-build services created high-performance workspaces through integrated CO₂ sensors and DDC controls that actively monitor and maintain optimal indoor air quality. These building automation systems continuously adapt to ensure every workspace supports employee wellbeing and productivity.

The project’s complexity demanded precision in every phase. Our team executed intricate VAV box replacements and duct modifications within the sophisticated architectural features and lighting design. Success was only possible through collaboration across all trades and partners.

Behind these innovations stands an equally impressive achievement: zero lost-time or recordable incidents across 59,200 work hours. This safety record reflects our commitment to protecting every person on site while delivering energy-efficient mechanical systems that support TikTok’s LEED sustainability goals.

Learn more: TikTok project.