Historic character meets modern efficiency in the heart of Downtown Bozeman. Thoughtfully built in 2015, this distinctive home was designed to capture the warmth and charm of an original Craftsman bungalow while incorporating the efficiency and functionality of a modern build. Meticulous attention to detail is evident throughout, from exceptional insulation and efficient heating and cooling systems to solar-powered hot water. Rich textures, natural materials, and carefully considered finishes create an inviting sense of warmth throughout the home. Set above the street with raised steps from the corner of Koch and 4th, the main level flows naturally from the welcoming foyer into the kitchen, dining area, and living room. A bedroom near the entry provides flexibility for guests or a home office, while a convenient half bath sits just off the dining area. A striking custom staircase, open to all three levels, serves as a central architectural feature and connects the home with a sense of openness. Upstairs, the private primary suite features a walk-in closet and spacious ensuite bath with a soaking tub and walk-in shower. Across the hall, a generous additional bedroom enjoys its own ¾ ensuite bath. The daylight basement offers even more living space with a large family room, additional storage room, ¾ bath with laundry area, and another bedroom. A built-in sauna adds an exceptional touch to this level. Outside, the fenced yard leads to a covered patio and a detached two-car garage with a fully livable studio ADU above. Designed to maximize space and functionality, the studio offers an ideal opportunity for rental income, guests, or separate living quarters. Just blocks from the restaurants, shops, trails, parks, and vibrant amenities of Downtown Bozeman, 402 W Koch offers a rare combination of historic-inspired character, modern performance, flexible living space, and an exceptionally walkable location.