For Sarah Walker, founder and principal of Nuance Interior Design, an exceptional home is about more than aesthetics—it’s about how a space supports the people who live there. Inside the firm’s Bellevue studio, Walker reveals a holistic approach to legacy estates, where architecture, interiors and wellness are considered as one. From circadian lighting and healthy materials to meticulous 3D planning, each decision is made with longevity in mind, creating deeply personal homes designed to restore, connect and evolve across generations.