Style by Design, LLC is a St.George, Utah based interior design studio founded in 2018 by Marianne Sax. We provide full-service residential interior firm throughout Utah, creating thoughtful, client-inspired spaces that balance beauty, function, and budget.

We specialize in a wide range of interior design styles and work closely with each client to reflect their personal taste, lifestyle, and budget. Whether designing a new build or updating an existing home, we tailor every project to the individual.

Style by Design collaborates with homeowners, builders, contractors, and subcontractors across Utah, serving as a trusted liaison throughout the design and construction process. We provide complete interior and exterior material selections to ensure a cohesive, well executed project.

We source furniture, accessories, artwork, and rugs from over 50 leading manufacturers, allowing us to offer near container-level pricing. These discounts are shared with our clients on every project, helping maximize value without compromising quality.

Budget-conscious interior design is a core principle of our firm. With years of experience in residential design and project coordination, Style by Design delivers timeless, well-planned spaces that align with both vision and investment.

With over 40 years of experience, Marianne brings a deep love for design and a genuine commitment to her clients into every project. She is known for her clear communication, thoughtful organization, and ability to create beautiful spaces while respecting both project goals and budgets.

Marianne stays closely connected to the design industry, continually expanding her knowledge of new materials, technologies, and trends. She regularly attends both the High Point and Las Vegas markets each year. This hands-on approach allows her to thoughtfully guide clients through material selections with confidence and clarity.

At the heart of Marianne’s work is listening. She takes the time to understand how her clients live day to day, designing spaces that feel personal, functional, and reflective of their unique style.

Marianne has proudly served two terms on the Board of Directors for the Intermountain Region of the American Society of Interior Designers (ASID), where she contributed her experience and passion to supporting the design community.

Marianne Jane Sax, Associate ASID

Senior Interior Designer

Hunter is an architectural designer with a strong architectural foundation and a passion for clear, effective design communication. He holds a Bachelor of Science in Architecture from the University of Utah and spent four years at a Salt Lake City–based firm drafting large-scale projects, including high schools and LDS temples. With a deep respect for both form and function, Hunter approaches design with the belief that beautiful spaces must also work seamlessly for the people who use them. Through a thoughtful process that includes detailed 2D drawings and immersive 3D renderings, he helps clients clearly visualize design intent and confidently engage with the design before it is built.

Hunter Sax

Architctural Designer

Some of the manufacturers we represent

- James Martin Vanities

- Lazar Industries

- Left Bank Art

- Made Goods

- Modern History

- Noir Furnitrue

- Rene Cazares Upholstery

- Safavieh

- Sunpan

- Surya

- Universal Furniture

- Vanguard Furniture

- American Leather

- Bracci Leather

- Catalan Italia

- Classic Home

- Eastern Accents

- Euro Style

- Feizy Rugs

- Four Hands

- Global Views

- Hooker Furniture

- Hubbardton Forge Lighting

- Hudson Valley Lighting

- Jaipur Living Rugs

‘Simplicity is the ultimate form of sophistication’

- Leonardo da Vinci

Let’s work together.

Fill out the form or call the number below.

(435)655-5200