About CO Architects


Los Angeles CA


Marjanne Pearson
Katherine Bajor
[email protected]

CO Architects is a practice dedicated to making buildings that enrich people’s lives — places of lasting significance that appeal as fully to the spirit as to the intellect. Their extensive portfolio includes large and complex institutional, civic, academic, medical education, science and technology, and healthcare projects.

Their practice is founded on a culture of integrity and mutual respect, and committed to continuous learning in support of professional and personal growth. They couple their depth of experience with a genuine delight in the craft and technology of building.

They believe that good buildings reinforce the coherence of their surroundings and maintain their physical and cultural significance over time. They are renowned for functional, green, and graceful design solutions that embody the timeless values of the institutions they serve, while fulfilling programmatic and technical expectations.

CO Architects Pinup

CO Architects Studio | Los Angeles CA

CO = jointly, equally, together with

The firm is built on open, ongoing conversation, embodied by their name.

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CO Architects: A Culture of Discovery

CO Architects serves mission-driven clients with designs that are catalysts for collaboration and progress — places that support new ways of working, learning, healing, and innovating.

Design emerges through a creative, iterative process of discovery. Clients and consultants are collaborative partners in their persistent search for the solution that best fits the needs of the program and site. Principals actively lead project teams in a practice founded on a structure of participation. Their senior staff share a common store of knowledge and expertise, developed over nearly three decades, which informs every project.

Founded in 1986 as a regional office of Anshen + Allen, CO became an autonomous office a decade later. In recognition of their commitment to collaboration, cohesion, and commitment, the independent firm became CO Architects in 2005. Over the past 33 years, the CO philosophy has propelled the firm’s growth to 115 multi-disciplinary designers and staff, supporting clients and projects in 27 states and the UK.

CO Named ENR California’s
2019 Design Firm of the Year

May 20, 2019
CO Architects Driven by Focus on Collaborative Design

According to Scott Kelsey, the firm’s managing principal, “The best projects come from the best collaborations.”

“Each project is about the client, its setting, its geographic location and what’s going on inside the facility….Our philosophy is to consolidate under a single roof where colleagues can work together, compare ideas and learn from each other.”

Information, photographs, and graphics courtesy of CO Architects.

California State Polytechnic University | Pomona CA

The Student Services Building symbolizes the aspirations and mission of the university and serves as a memorable place of arrival for prospective students, returning students, alumni and visitors.

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