Set on 1.73 private acres in the Orinda Hills, 90 Estates Drive is a completely reimagined mid-century modern home with clean architectural lines, layered textures, and stunning natural light throughout. The open-concept layout features wide-plank oak floors, soaring ceilings, and walls of glass that frame views of trees and hillsides. At the center of the home, the sleek kitchen offers quartz countertops, Thermador appliances, custom cabinetry, and a sculptural island designed for gathering. Living and dining areas flow effortlessly with a modern gas fireplace, built-in shelving, and a seamless indoor-outdoor connection. Four spacious bedrooms and four beautifully updated bathrooms include a serene primary suite with a spa-style bath, soaking tub, and oversized shower. The expansive backyard is ideal for entertaining or relaxing, with multiple decks, a built-in barbecue, and a swim spa surrounded by peaceful hillside views. The lower lot offers exciting potential for a guest house, ADU, or sport court. Just minutes to downtown Orinda and Lafayette, BART, and top-rated schools, this home offers privacy, style, and everyday ease.