Introducing a stunning architectural gem nestled on one of North Boulder's most coveted streets. This energy-efficient home is minutes from Pearl Street Mall and easy walking distance to hiking trails. Set on a beautifully landscaped lot, it features a fenced, low-maintenance yard, mature trees and two covered patios perfect for enjoying the outdoors. Inside, the contemporary open floor plan is highlighted by abundant natural light and spacious rooms. Superior craftsmanship and energy-conscious design are evident throughout the four levels, which include a walk-out basement - ideal for guests and ADU potential - and an exquisite third floor SkyLounge. The central chef's kitchen anchors the main level and boasts custom Alder cabinets, walk-in pantry, dual sinks, large island, granite slab countertops, and premium appliances including Wolf double oven, Thermador induction cooktop, and Sub-Zero refrigerator. Adjacent to the kitchen are both dining and sun-filled living areas and indoor outdoor flow opening to a pergola-shaded patio through a dramatic double-sided gas fireplace. High-end finishes abound, including white oak flooring, custom built-ins, shaker-style doors, hand-troweled walls, stylish lighting, and Italian tile. Upstairs, the primary suite offers a private south-facing balcony, a luxurious spa-like bathroom and a walk-in closet. Completing the 2nd floor are the 2 additional bedrooms - each with a walk-in closet and connected ensuite bathrooms with private sinks and vanities - and a spacious laundry room. On the 3rd level, the SkyLounge offers another balcony with Flatirons views & serves as an office, gym, or optional 5th bedroom w/ an add'l bathroom. The expansive finished basement includes a rec room, theater, bedroom, full bath, wine storage, & wet-bar kitchenette. Add'l features include 3-car garage, dual-zone central AC, high-efficiency on-demand hot water heater, top-tier insulation & low-E windows.