Lisa Arnett has an extensive background in programming, master planning, architecture, interior space planning and design. She has worked on numerous arts and educational projects, retail and shopping centers, mixed-use developments and community centers as well as custom, high-end, residential projects. Her experience includes the Pleasant Valley Branch Library, and five branch libraries master plan for Weber County, the Swaner Nature Preserve Education Center, the Rose Wagner Performing Arts Center, Weber State Visual Arts Building, the Utah Museum of Fine Arts, and the Bridges Project located in the new Gateway district. Ms. Arnett has worked with several of the leading New York and Boston architectural firms, including work on the Carnegie Hall Renovation, and space-planning the IBM Headquarters in White Plains, New York. Ms. Arnett received her Bachelor of Architecture and Masters Degree in Architecture from the Rhode Island School of Design. She has been working with Prescott Muir since 1990 and a Partner since 2008.

Thomas Morahan is an architect with over 22 years of professional experience, educated at the Universidad Nacional del Litoral in Argentina and the Graduate School of Architecture at the University of Utah. His practice encompasses a wide range of project types, including residential, institutional, commercial, cultural, and public architecture, developed across both Argentina and the United States. His career, working for Prescott Muir FAIA has been grounded in a strong technical and visual education, his work reflects a comprehensive approach to design, combining conceptual clarity, constructive precision, and a deep understanding of architectural representation.

Beatriz O. Muir was born and raised in Mexico and holds a degree in Business Tourism Administration. She began her career working in both the private and public sectors, contributing to projects associated with Marriott Hotels, the Antara Shopping Mall development, and the launch of new development initiatives. In 2016, she moved to Utah, where she focused her professional experience on financial and administrative roles within the architectural field. She enjoys working with numbers and contributing to the financial strength and organizational structure of the companies she supports. Equally important to her is the human side of the architecture profession, building meaningful relationships, collaborating openly, and creating a work environment where everyone supports one another and makes our time together both positive and fulfilling.

Ana Benítez is an architectural designer and visual artist from Mexico City, where the city’s multilayered cultural and historical conditions shaped her understanding of the built environment and aesthetics. She earned her architecture degree from the National Autonomous University of Mexico (UNAM) in 2019.

Her work is guided by a contemporary understanding of architecture as a cultural and material practice that mediates relationships between people, geography, space, and technology. Thoughtful and concept driven, she has contributed to residential, cultural, and commercial projects, engaging in design, documentation, and visualization through all stages of the project. Alongside her architectural work, art remains a central passion, sharpening her sensitivity to light, material, color, geometry, and the atmospheres of everyday space.

She is motivated by the belief that architecture shapes daily life, becoming the background for social relationships, a vessel for culture and memory, and a framework for the future.

Stephen is a designer who received his Bachelor of Architecture from the University of Houston. He has worked in various project types from high-end restaurants to oncology laboratories, enjoying every opportunity for problem solving and architectural expression along the way. After his stint at prominent architecture firms in Houston, he now joins our team to continue pursuing his passion as a designer at MUIR ARCH.

Accountant & Office Manager

Beatriz O. Muir

Born and raised in Salt Lake City, Adria M. Swindle brings a multidisciplinary background in business operations and law to her role at the firm. She earned an undergraduate degree in Sociology from the University of Utah Honors College and a law degree from the Sturm College of Law at the University of Denver. Following law school, she returned to Salt Lake City and developed a diverse professional career that includes practicing law, working in the non-profit sector, and owning and operating a small business.

Adria appreciates that the strength of design lies in its details. With a long-standing eye for design and the way architecture shapes experiences, Adria was drawn to a role that bridges creative practice with operational rigor. At the firm, she oversees business operations, applying her legal training and strategic insight to support the design process. Her work ensures that the practice functions efficiently, allowing architects to focus on thoughtful, high-quality design. Outside the firm, Adria enjoys spending time outdoors with her husband, three kids and two dogs.