It's paying off. With several new urban design wins in hand, Sienna last week brought on four well-known architects--three of them as principals--to grow its Seattle-area business even more. Joining the firm are Steve Harmon, Darryl Custer and Kirk Callison, all of whom previously held senior and principal-level positions with Mulvaney/G2.

Harmon brings 20 years experience in retail, office, commercial and mixed-use design to Sienna. Custer has 11 years of experience and specializes in high-end residential, commercial office, corporate headquarters, high-tech facilities, interior design, space planning and tenant improvement management. Callison brings 10 years of experience in commercial, retail, multi-family housing, master planning, and programming to the team.

Until the new Seattle crew has a chance to generate some of their own work, Sienna's new Seattle team will be assisting on several new projects brought in by Reddick and other Portland-based Sienna principals, including: