Design has always been more than aesthetics for Mary DeNunzio. It has been a way of creating environments that feel personal, timeless, welcoming, and deeply connected to the people who live within them.

With over 30 years of experience in interior design, Mary has helped clients transform houses into homes that reflect comfort, sophistication, functionality, and individuality. Her approach combines thoughtful design with genuine connection, allowing every project to feel collaborative, intentional, and uniquely tailored to each client’s lifestyle.

DeNunzio Interior Design was originally established and built by Mary in West Michigan, where she created a strong and respected foundation within the design community. Located in the heart of downtown Muskegon, her historical design studio became known for its creativity, personalized service, and award-winning work. During those years, Mary designed dozens of recognized and award-winning projects that helped establish her reputation for timeless, functional, and beautifully curated interiors.

Today, Mary continues to lead DeNunzio Interior Design with a refined focus on personalized interiors that balance elegance, warmth, and livability. Her philosophy is centered around creating spaces that not only look beautiful, but also feel inspiring, calming, and deeply functional for everyday living.

Known for her attention to detail, approachable personality, and passion for helping clients bring their vision to life, Mary believes every space should tell a story—one that reflects the people who experience it every day.

Whether designing a full-home transformation, refreshing a single room, or collaborating on a custom project, Mary brings creativity, professionalism, and heart into every stage of the design process.

At DeNunzio Interior Design, the mission remains simple: to create beautiful, meaningful spaces that feel like home.