Our Company

Merge Architectural Group is an award-winning architectural firm located in Phoenix, Arizona, providing complete architectural, planning, and interior design services. Co-founded by Carlos Murrieta and Clarisa del Castillo in 2012, it has a diverse portfolio of outstanding community, education, government, higher education, hospitality, and multifamily projects.

We are committed to designing excellence through a client-concentric collaborative design process, assuring the most responsive, accurate, and cost-effective approach for each client.


We focus on a client-centered experience. Our clients are part of our team, allowing us to create appropriate and responsible designs based on our core values:


We modify the built environment through novel solutions and imaginative ideas.


Our ethical principles are the basis of our practice.


We attain the highest design quality through continued exploration of ideas.

Arizona, New Mexico, Texas, California, Mexico

We believe a City is the heart of its surrounding region, so it was easy for Merge to establish its central Phoenix office. Surrounded by both modern and historic buildings, we see constant reminders of how architecture is woven into the cultural fabric of a City and State. Our team designed our downtown office for openness, collaboration, and change.

Living, studying, and working in the Sonora Desert region has given us a passion for the landscape and architecture surrounding us. The rich history of the land and its people has embedded deep respect for the value of sustainability and design sensitive to the landscape. It offers a new, modern interpretation of all that came before us.