A 21 is a Denver, Colorado based architecture + design firm focused on a rigorous crafting of quietly designed buildings and spaces. Our immersive design process seeks the creation of a deep and meaningful relationship between living spaces and their surroundings - with a pursuit to present architecture, art and nature as a seamlessly integrated experience.

We hold a passionate belief in reductive design strategies which evoke a physical and emotional presence of spatial purity, eschewing unnecessary form and ornamentation. We strive for refined