Meet the Team

Clarissa specializes in complex institutional design at STBA and enjoys being able to bring clients' visions to life. She thrives on the technical intricacies of construction projects that make buildings come together successfully. Originally from Pittsburgh, PA, Clarissa graduated from Penn State University with a Bachelor of Architecture.

In her free time, you can find Clarissa spending time with her family and friends or reading a good book.

Karla Daigle keeps the office running smoothly from day to day. She enjoys working with the talented architects and designers at Sizeler Thompson Brown Architects.

In her free time, you can find Karla hiking a trail with her husband and dog.

kdaigle@sizeler.com

For Anna Bertucci Ghelase, when it comes to design problems, the more challenging the better. Taking great satisfaction in finding unexpected solutions to puzzling situations, Anna specializes in designing innovative environments. As a board-certified healthcare architect, Anna has experience managing large and complex institutional projects. She has managed numerous projects of varying sizes and complexities at various institutions across Southern Louisiana.

A New Orleans native and a graduate of the Tulane University School of Architecture, Anna likes to spend her spare time on crafty projects—rehabbing and creating furniture or making jewelry.

Born and raised in Harahan, Louisiana, Madeleine holds a bachelor's in Interior Design from Louisiana State University. She has vast experience in all areas of healthcare design, as well as education, corporate office, and retail. She enjoys creating spaces that reflect the personality of her clients and their brand, and constantly educates herself on the newest products. Her favorite types of designs include elements of irony and humor.

In her free time, Madeleine can be found going on road trips, listening to podcasts, hiking, drinking tea, and reading.

Heather McLellan has a background in tax and accounting work, with a previous career in video and film production. She enjoys working with creative professionals on their financial and accounting challenges.

Originally from Madison, Wisconsin, Heather received her Communications Degree from the University of Wisconsin and then completed the Pre-CPA Program at the University of New Orleans. In her free time, you can find her either at a festival, her favorite local coffee shop, or at a dance class with her little girl. She also has quite the creative side, and usually has a knitting or cross-stitching project in the works.

hmclellan@sizeler.com

Crystal Mitchell specializes in designing higher education facilities, libraries, and community centers. She is a skilled problem solver and enjoys collaborating with creative minds.

A New Orleans native, Crystal graduated with her Masters from Tulane University School of Architecture. In her free time, you can find her lunching with friends, admiring exhibits at the New Orleans Museum of Art (NOMA), enjoying the outdoors at City Park, and working on home projects.

As a member of the Interiors Department, Jordin enjoys enhancing experiences through the creation of interior environments. Originally from Metairie, Jordin is a graduate of Louisiana State University.

In her free time, she enjoys cooking and baking, visiting a new restaurant, and walking on the levee with her family.

Tan Nguyen holds a Bachelor of Architecture degree from Louisiana State University. He is particularly passionate about creating designs that seamlessly integrate with their environment, aiming to enhance the quality of life through architecture for the current generation.

In his spare time, Tan enjoys various outdoor activities such as exploring new places, hiking, and camping. Additionally, he engages in crafting and indulges in video games as part of his hobbies.

A native of New Orleans, Allen Ohlmeyer earned his Bachelor of Architecture from Louisiana State University in 1991. In 2006, he became Principal and Partner of the firm and then Managing Principal and Partner in 2021. He is proud of the continued success of STBA and continually heartened by his colleagues’ commitment, talent, and attention to detail.

Whenever the opportunity arises, Allen heads to the coastal marshes of St. Bernard Parish in pursuit of redfish and speckled trout. A volunteer with the Louisiana Cooperative Marine Fish Tagging Program, Allen has tagged 593 fish to date—18 of which have been recaptured. Having married into a Cajun family, he is a lover of seafood and spirited gatherings.

Katie Sumich, graduated from Louisiana State University with a Bachelor of Interior Design and is WELL AP certified.

Her love for transforming spaces is evident in her use of innovative color schemes and patterns. Through her work, she strives to create environments that not only aesthetically please but also contribute to the overall well-being of the occupants.

Outside of design, Katie is an avid reader, enjoys exploring new recipes, taking leisurely walks with her goldendoodle Fozzie, playing Trivia, or playing piano.

A native of South Louisiana, Steve Templet graduated from the University of Texas in 1990. With more than 30 years of professional experience, he is devoted to developing spaces that promote wellness and better quality of time spent in the environment. Serving as the 2022 President of the Board of Regents of the American College of Healthcare Architects, Steve was elevated to a Fellow of the College, a distinction granted to less than 50 healthcare architects nationally. Steve has led master planning and design projects at numerous local institutions and often leads educational sessions at national design conferences related to health and wellness design.

Away from work, Steve enjoys spending time with his family, carpentry, hunting, and enjoying the outdoors.