Perfectly positioned in one of Boulder's most sought-after neighborhoods, Flagstaff, 505 Geneva Avenue captures the essence of Colorado luxury living with unobstructed Flatiron views, timeless design, and unmatched access to Boulder's outdoor lifestyle. Nestled just steps from premier hiking trails and the base of Flagstaff Mountain-beloved by cyclists-this exquisite residence combines privacy, elegance, and adventure in one breathtaking setting. Spanning 6,564 square feet across four levels, this architecturally refined home showcases soaring ceilings, natural light, and seamless indoor-outdoor connections. The main level features a spectacular primary suite with a spa-inspired bathroom, private deck for sunrise views, and a grand walk-in closet with a washer and dryer. The open-concept kitchen flows effortlessly into the dining and living spaces, all framed by dramatic Flatiron vistas and access to an expansive entertainment deck. A tranquil office loft above offers panoramic mountain views-perfect for remote work or creative inspiration. The lower levels include five additional bedrooms, four bathrooms, a spacious recreation room, and a stylish media lounge, plus room for pool or ping-pong and a fully equipped home gym for wellness enthusiasts. Sustainability meets sophistication with solar panels and dual Tesla Powerwalls, ensuring energy efficiency and dependable backup power. Surrounded by nature yet moments from downtown Boulder's dining, shopping, and culture, this home delivers the ultimate Colorado lifestyle. With iconic views, exceptional craftsmanship, and a coveted Flagstaff location, 505 Geneva Avenue is a true Boulder sanctuary-luxurious, peaceful, and built for those who live boldly.