A truly rare offering in 16th Street Heights, this exceptional four-level residence brings together gracious proportions, timeless architecture, beautifully preserved original details, and thoughtful modern improvements. Added bonus: Access to the most scenic trails in Rock Creek Park are a short 5 block walk away! Impeccably maintained and environmentally certified, this is a home where no detail has been overlooked and every improvement has been considered. From its welcoming front porch to its rooftop deck, the craftsmanship, quality, and care are evident at every turn. Inside, generous, light-filled rooms create an immediate sense of warmth and space. The spacious living room features handsome built-ins and a fireplace, flowing naturally into a gracious formal dining room, powder room, and beautifully appointed kitchen. Throughout, original architectural elements-including gorgeous original doors and distinctive glass doorknobs-have been thoughtfully preserved and beautifully maintained, adding authenticity and character without sacrificing comfort or function. Hardwood floors, custom built-ins, and carefully considered updates complement the home's enduring architectural appeal. A thoughtfully designed mudroom adds everyday convenience. Upstairs, three well-proportioned bedrooms include a lovely ensuite, complemented by a second full hallway bath and a versatile rear bedroom, office, gym, or sunroom. The full upper level offers exceptional flexibility, whether envisioned as a loft, creative studio, additional living space, or private retreat. The lower level - fully finished - adds yet another dimension of possibility: a separate apartment with its own Certificate of Occupancy, ideal for rental income, an au pair, extended guests, or multigenerational living. Outside, enjoy the rooftop deck and a back patio with dedicated parking. The home's environmental features are equally impressive, including a green roof, solar panels, meticulously restored windows with storm windows (plus storm windows will never have double pane glass pane failures), and other energy-conscious appliances and improvements that reflect the owner's longstanding commitment to sustainability. Green certified, this home offers the increasingly rare combination of architectural integrity, modern efficiency, and responsible stewardship. And then there's the neighborhood. Coveted 16th Street Heights offers a wonderful sense of community, with Rock Creek Park, neighborhood coffee shops, beloved Moreland's Tavern, the Saturday farmers market, schools, and playgrounds all within walking distance. A home of uncommon character, scale, and integrity-where gracious living, beautifully preserved history, meticulous stewardship, flexible living spaces, and thoughtful sustainability come together. A truly special opportunity to own a home that has been cared for, improved, and loved with extraordinary intention