515 S Black Avenue There is a short list of addresses in Bozeman that people actually want. The south side is at the top of it: walkable, established, rooted in the culture of the town rather than apart from it. Most of what changes hands here is a century old. This one is not. This residence was built without compromise and without shortcuts. The insulation envelope, the mechanical systems, the fixtures, the finishes: every decision was made as if the builder intended to live here for the rest of their life. Because they did. Which means you are acquiring something that cannot be replicated at this price, and likely cannot be replicated at all given what construction now costs in this valley. The main floor moves the way a home should. Entry that lands you without ceremony. A mudroom that actually functions. A kitchen sized for real cooking around a Tulikivi Fireplace with professional-grade appliances to match. Living and dining unfold with intention. A private office keeps work where it belongs. A half bath completes the floor with quiet efficiency. Upstairs, the bedrooms and baths are finished with the same care as the rest of the home. The entire house is conditioned with the help of radiant heating and cooling and an ERC system to maintain a clean and healthy living environment. Downstairs, the basement is a world of its own: a full guest suite, a proper entertainment space, and a gym that culminates in a custom Finleo sauna accessed through a natural stone shower. This is not a feature. It is a commitment to how you live. The garage is heated, cooled, and ventilated, and finished with a coat of epoxy. A MFGR designed carport with heated storage units handles the overflow that Montana life inevitably requires. High-performance windows and superior insulation envelope are just some of the elements incorporated to make this house endure for generations. The ADU is finished to the identical standard as the main house, current occupancy concluding May 1, 2026. Transition timed for a buyer who wants income, guest quarters, or simply the flexibility to decide. The 5KW solar array offsets the majority of the power demand, while the irrigation well eliminates the need for expensive city water for lawn irrigation. This is a new build in the most coveted south side neighborhood in Bozeman, priced below replacement cost. That sentence alone makes this one of the rarest opportunities to come to market in years. Seller is a licensed Realtor in the State of Montana.