About Us

Katherine Mueller

OWNER | PRINCIPAL DESIGNER
Owner and principal designer of CeTerra Accents & Interiors, has spent the tenure of her career working in many facets of the design industry including small and large-scale residential and commercial projects. While Katherine’s experience encompasses many design styles, she exhibits a specialty in an organic, contemporary southwest aesthetic.

Katherine, a native of Arizona, was born and raised in Flagstaff. During her adolescence, she spent her time hiking and biking in the beautiful mountainous surroundings as well as many weekends at Lake Powell with her family.

Katherine is a graduate of Northern Arizona University where she obtained her Bachelors of Art in Art History and Bachelors of Science in Interior Design with a minor in French. While at NAU, she served as president of the Beta Omega Chapter of Gamma Phi Beta International Sorority, and participated in multiple campus organizations. To expand her knowledge in French studies, Katherine attended Institute de Touraine, in Tour, France, Laval University, in Quebec, Canada, and University of Lyon, in Lyon, France. Her final year at NAU included a summer in China where she studied culture and art history at Nanjing, Qufu, and Xi’an Universities.

She is also a graduate of Arizona State University where she completed her Masters of Science in Design with a Certificate in Museum Studies. During her time at ASU, she interned at the Phoenix Art Museum, and published her master’s thesis, Riordan Mansion: An Arts and Crafts Duplex, 2010. As a result of her passion for higher education, Katherine regularly instructs design classes at local colleges.

Katherine is a professional member of the American Society of Interior Designers (ASID), is NCIDQ certified (No. 28198), and active among many local and regional professional and academic interior design networks. Her work has been featured in Phoenix Home and Garden Magazine as an Editor’s Pick in December 2013, and she was also highlighted in a May 2015 editorial titled Celebrating Women.

In addition to her work in Arizona, Katherine has traveled extensively throughout Africa, Asia, Western Europe, and the United Kingdom, which is evident in her ability to reference and incorporate multiple design elements into her vision. In her spare time, Katherine enjoys traveling, museums, cycling, reading, and spending time with her husband, family, and miniature dachshunds, Lola and Ollie.


Kim-Color-bioKim Witgen

SHOWROOM MANAGER | DESIGNER
Entered the field of design later in life after graduating with Honors from Mesa Community College in 2012 with an A.A.S. in Interior Design. She is currently attending her last year at Arizona State University for the completion of a Bachelor’s Degree in Sustainability with a focus in Design. The study of sustainability was a natural complement to her passion for design. Upon completion of her B.A., she will test with the National Council for Interior Design Qualification to obtain her certification.

Although Kim was a late arrival in the field of design, her passion has been present throughout her lifetime. As a child, many hours were spent designing and building dollhouse furniture from any resources she could find. Her parents quickly noticed that her dolls received little attention but their home was impeccably arranged. This interest continued during her adolescence. A request from Kim’s mother to straighten her room, often included a new furniture layout, and was hardly considered a chore.

Growing up in rural northern Ohio, she was often inspired by the natural beauty of her surroundings. Following the encouragement of her high school art teacher, Kim moved to Arizona to attend college, and expand her horizons. She quickly fell in love with the southwest desert environment, and declared Arizona as her home. After marriage, family, and two unique careers; a buyer for a national department store, and the owner of a fitness studio, she found her way back to her childhood passion.

Accolades and accomplishments include the honor of receiving The Daughters of the American Revolution Youth Citizenship Medal while attending high school. At Mesa Community College, Kim served as President of the Student Interior Design Group, and won 1st Place in the Custom Rug Design competition. She also earned qualification as a Certified Aging in Place Specialist from the National Association of Home Builders, and volunteers with Alzheimer’s patients.

Kim’s hobbies include cooking, outdoor activities, and attending museums. As an advanced scuba diver, she has traveled the world experiencing the underwater environment of various locations including Australia and the Great Barrier Reef. Kim joined the team at CeTerra Accents & Interiors in August 2013.