Set in the highly desirable Sun Mountain Estates neighborhood off Old Santa Fe Trail and backing directly to the scenic Arroyo Chamiso Trail, this custom adobe residence offers timeless traditional architecture, generous proportions, and exceptional potential in one of Santa Fe’s most sought-after Eastside settings. Encompassing approximately 3,200 square feet on over half an acre, the three-bedroom, three-bath passive-solar home built and designed by Architect Mark Chalom—who has won international awards for his passive solar home designs—showcases authentic adobe construction, with both interior and exterior adobe walls, soaring ceilings with vigas, expansive floor-to-ceiling windows, and classic brick flooring throughout much of the residence. Thoughtfully designed for beauty, comfort and privacy, the floor plan offers excellent separation of space. The central living room is anchored by a graceful fireplace with a hand-carved wooden hearth and flows into the formal dining area, creating an inviting setting for entertaining. The kitchen features custom wood cabinetry, a gas range, abundant workspace, and opens seamlessly to a cozy, relaxing den with a kiva fireplace and access to a garden patio. Occupying its own private wing, the expansive owner's suite includes a dedicated library or office, a sun-filled sitting area, and an ensuite bath with a walk in closet. Two additional guest bedrooms are positioned separately off the kitchen and den hallway; one includes an ensuite full bath. Additional amenities include a mudroom, laundry room with utility sink, and a two-car garage with oversized windows providing natural light. Notable components include in-floor, baseboard radiant heat supplied by a gas boiler, a recently replaced hot water heater, and a torch-down bitumen roof replaced approximately eight years ago. Estimates for stucco and sunroom wall improvements will be provided as a courtesy to prospective buyers. Carpet has been removed from three rooms, exposing the underlying slab, and flooring replacement will be needed in those areas. Any necessary improvements or replacements have been taken into consideration and adjusted in the initial list price. Rich in character and solidly constructed, this is a rare opportunity for a discerning buyer to restore and elevate a truly special Eastside property near Museum Hill.