We design loud.
We design you.
Statement-making interiors for the bold, the stylish, and the done-with-beige.
Based in San Diego, crafting editorial spaces full of personality and style.
Living Loud.
Living Real.
Founded by Nancy Rosett, Kostel Design began with a simple but radical mission: to disrupt the beige, risk-averse interiors that saturate the market. With a European-inspired, fashion-forward approach, we blend art, style, and spatial storytelling to craft spaces that feel unapologetically you.
We’re your creative co-conspirators—part designer, part stylist, part mood-setter. We turn up the volume on your personality and style so your home becomes a curated expression, not a catalog copy.
What We Do
“Design should reflect who you are — not what’s trending.”