This move-in ready, classic brick Colonial in American University Park blends original character with a suite of thoughtful updates and rare expansion potential. Set on a deep lot with a detached garage and an expansive backyard, the property offers both immediate comfort and long-term flexibility. The current owners have made extensive, thoughtful, and energy-efficient investments, including: a new high-efficiency heat pump system that provides heating and cooling year round; a new architectural shingle roof, plus rooftop solar panels that generate savings on electric bills; all new windows and exterior kitchen and basement doors, enhancing efficiency and aesthetics; and a new concrete slab and roof for the garage. Inside, the main level features a spacious living room with hardwood floors and a wood-burning fireplace, a charming pine-paneled sunroom with exposed brick, and a sunlit dining room. The kitchen includes newly-installed quartz countertops, a new undermount sink, and an additional cabinet for enhanced storage. Up the elegant wood staircase are two generous bedrooms and a classic full hall bath. A full walk-up attic presents fantastic storage space or the opportunity to create additional finished space. The lower level includes laundry, additional storage space, a quarter bath, and direct outdoor access. The space could be finished as a guest suite or rec room, if desired. A lush backyard filled with azaleas, rhododendrons, and daylilies is perfect for entertaining, playing, gardening, or future additions. The detached garage has been recently repaired, ready to serve as your car haven, art studio, or batting cage. Perfectly positioned within walking distance of Spring Valley, Friendship Heights, and Tenleytown, enjoy easy access to restaurants, shopping, transit, and highly-regarded public schools (Janney, Deal, and Jackson-Reed). This turnkey AU Park home offers classic charm, modern convenience, and the flexibility to grow.