Rare opportunity to secure a fully permitted custom residence on Mercer Island before construction begins. Designed by Seattle-based Citizen Design, this modern home blends timeless architecture with functional living and refined interiors while allowing buyers to personalize select finishes prior to construction. Thoughtfully designed for natural light and seamless indoor-outdoor living, the home offers expansive gathering spaces, a chef's kitchen with oversized island and butler's pantry, dedicated office, main-floor guest suite, mudroom, and covered outdoor living area. Upstairs, the private primary suite features dual walk-in closets and a spa-inspired bath with heated floors, soaking tub, and oversized shower. Three additional bedrooms, two baths, and a laundry room complete the level. The lower level includes a theater, recreation room, wet bar, and guest suite with separate exterior access. White oak flooring, rift-cut oak cabinetry, natural stone, handmade tile, brushed brass fixtures, and carefully selected finishes create a warm, timeless palette inspired by the Pacific Northwest. Designed for everyday living and entertaining, the home balances open gathering spaces with private retreats. Fully approved and permit-ready, buyers can avoid years of planning while retaining the opportunity to participate in select finish selections before construction begins. Architecture and interiors maximize livability, natural light, and connection to the surrounding landscape.