Private Owners / Developers

Our architects, engineers and construction managers provide a wide variety of professional consulting services for private building owners and private developers. Due to our sound advice, diligent guidance, and inspired services, OAC continues to enjoy strong client relationships and repeat, word-of-mouth business. By assembling highly capable, inventive teams, OAC offers significant private developer experience and expertise assembling teams for private owners and commercial clients ranging from smaller single-story projects to high-rise urban developments.

Featured Project

The Cobb Building


Previously designed for medical offices, the building was being converted into luxury apartments and street level retail. A new building core and terraces were being added. The original wood windows and interior finishes were to remain and needed to be protected and restored during the renovation.

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Unico Properties


Seattle, WA

Direct Contact

Randy Hart


Contact Lee Dunham at 206.268.0965 or Steve Johnson at 206.378.2907 for more information on Private Owners / Developers.

OAC Feed

Blog Posts

OAC Volunteers at Mary's Place's Holly Jolly Holiday Party

While the holidays are often thought of a time to … Read more >

Blog Posts

Jeff Jurgensen & Jonathan Miller Receive Community Leadership Awards

Congratulations to Jeff Jurgensen and Jonathan Miller for receiving Community … Read more >


Project Manager - Olympia, WA

At OAC, we do what we love in the service … Read more >


Project Coordinator - Olympia, WA

At OAC, we do what we love in the service … Read more >


Executive Assistant - Seattle, WA

Who We Are At OAC, we do what we love … Read more >
Contact us with questions


Project Engineer/Assistant Project Manager – LWSD

At OAC, we do what we love in the service … Read more >

Construction Management. Architecture. Engineering.

OAC has a history of success with specialized design and construction because we love what we do. We serve our clients as collaborators, and we design and manage projects that improve where people live, work, learn and play. Because of this, we’ve gathered a superlative staff of professionals who share our core values, and our vision – do what we love in the service of people who love what we do.