HDA’s new corporate office represents a full-circle moment for the firm, relocating to the Timberlake Corporate Center in Chesterfield, Missouri—a three-building office campus originally designed by HDA in 1998. After more than four decades of growth, the move returns the firm to its roots while creating a workspace that reflects its evolving vision, culture, and design philosophy.

The newly renovated office was transformed into a modern, highly collaborative environment that balances simplicity with bold architectural expression. Open workspaces, contemporary finishes, exposed ceilings, polished concrete floors, expansive glass, and thoughtfully curated details create an inspiring setting for employees and a welcoming experience for clients and partners.

Located in the same community where HDA was founded and headquartered from 1986 to 2020, the office blends the firm’s legacy with its future. More than a relocation, the project demonstrates HDA’s belief that great design should evolve alongside the people it serves—creating spaces that foster collaboration, innovation, and lasting relationships.