Move in ready and lovingly maintained! Perfectly situated on a foothill mesa in Boulder's sought-after Highland Park neighborhood. This spacious home was originally the personal residence of one of Boulder's premier custom home builders. As the builder's lot, it offers breathtaking Flatirons views to the south and west, and is one of the few homes on Vassar Drive with true 360-degree vistas. The iconic interior combines modern elegance with a thoughtful layout that frames stunning views through expansive windows and sliding glass doors. The walkout garden level-with separate entrance, bedrooms, bath, and kitchen area-offers excellent potential for a private guest suite or short-term rental. Step inside and you'll be greeted by an open floor plan, vaulted ceilings, and abundant natural light. The spacious living room is perfect for entertaining, featuring a cozy fireplace and oversized sliders with transoms to take in the panoramic views. The spacious kitchen is complete with stainless-steel appliances and a large, sunny breakfast nook with mountain views. Just off the kitchen, a welcoming family room with wet bar creates a warm and versatile space for relaxing or hosting guests. Tranquil primary suite offering incredible views, generous closet space, and a spa-like en-suite bathroom with dual vanities and a walk-in shower. Two additional main-floor bedrooms offer ample storage and natural light, while a shared full bath ensures comfort for family and visitors. The wraparound deck offers stunning views to the southwest, and a peaceful and quiet retreat to enjoy in every season. A moss-rock wood- burning fireplace adds charm to the flexible lower living area-ideal for entertaining, multigenerational living, or a private space for teens or guests. The solar-powered, passive-solar home is located just a half-block from Boulder's extensive network of hiking trails.