Modern Luxury in a Historic Setting. Welcome to 563 Arapahoe - a light-filled, thoughtfully renovated four-bedroom, five-bath sanctuary tucked away walking distance to trails and Pearl Street on a tree-lined street in the sought-after West Boulder Downtown neighborhood. This light and airy rare creekside oasis combines todays standards with the summer trends buyers crave: indoor-outdoor flow, wellness retreats, and flexible spaces for living, working, and entertaining. Gather with friends on the expansive terraced patios while Boulder Creek flows just below - an unforgettable backdrop for al fresco dinners, Buffs game days, or relaxing evenings under mature trees. High ceilings on main and upper floors, abundant windows, and treetop & mountain views bring nature indoors, while the original 1904 Victorian facade blends beautifully with a 2005 rebuild and 2023-24' designer finishes and impressive landscaping renovation. Inside, the stunning chef's kitchen is an entertainer's dream with custom bold blue-and-white cabinetry, quartz countertops, premium stainless appliances, a spacious island, stylish bar with beverage center and sink, plus a walk-in pantry for effortless gatherings.Upstairs, the vaulted primary suite is a true wellness escape with treetop views, a Juliet balcony, spa-like soaking tub, steam shower, and dual vanities. Three additional bedrooms and beautifully updated baths offer flexible living for family, guests, or work-from-home needs.The finished lower level with cozy media lounge, mudroom, and bath creates the perfect guest suite or movie night hangout. The oversized 728 sq ft garage is ready for all your gear. Soak in Flatirons views from the front porch and alternative primary suite or step onto Pearl Street, CU campus, restaurants, and trailheads just moments away - the best of nature and city life at your doorstep. With its rare riverfront setting, timeless appeal, and modern updates, this is Boulder living at its very best.