Situated along the most prestigious street in Old Town Alexandriawithin one of the nation's most historic and desirable neighborhoods 227 S Union Street is one of 6 newly constructed, LEED Silver-certified residences. Welcome to River Row. This home sets a new standard for luxury living along the Potomac River. Developed by the esteemed JC Development, this four-level home offers a rare combination of timeless architecture, innovative engineering, and a premier locationwith no HOA or condominium fees. Constructed from solid steel and concrete and clad in classic brick on all sides, the residence spans 3,366 square feet of interior living space and rises four stories via a private elevator. From the moment of entry, the architectural integrity is evidentsoaring ceilings (up to 12 feet), oversized 9-foot solid core doors, 8 -inch wide white oak flooring, and expansive Andersen windows create a light-filled, contemporary atmosphere grounded in timeless materials. The main living level presents an open-concept layout that seamlessly transitions the kitchen, living and dining areas to a stunning 440-square-foot private outdoor terrace, finished in imported Spanish porcelain tilean ideal setting for private entertaining or alfresco dining. The gourmet kitchen is anchored by soft-close American Woodmark cabinetry, Taj Mahal quartzite countertops, and a professional-grade appliance suite that includes a Thermador 36-inch five-burner gas range, double electric wall ovens, Bosch French-door refrigerator, Thermador dishwasher, and Sharp microwave drawer. Every element is thoughtfully selected to support elevated daily living and elegant hosting. The upper levels are equally refined. Four spacious bedroomseach with ensuite marble-clad bathrooms and Kohler fixturesoffer privacy and sophistication. The top floor opens to a 189-square-foot rooftop terrace with captivating city and river views in select residences. An additional fourth-level wet bar with Taj Mahal quartzite counters and a Summit beverage refrigerator enhances the rooftop experience. LEED Silver certification recognizes high-performance energy systems, including recessed LED lighting, 2-zone Goodman HVAC with Ecobee smart thermostats, electronic air filtration, humidifiers, a Rinnai tankless water heater, and a full home sprinkler system. These systems contribute to lower utility costs, superior indoor air quality, and long-term sustainability. Additional features include an 800 lb capacity private elevator servicing all four floors, integrated surround sound, Akuvox smart doorbell, and multiple laundry hookups. The lower-level family room includes a second wet bar with Taj Mahal quartzite countertop and a dual-zone Newair beverage refrigerator, ideal for casual gatherings or movie nights. The oversized two-car garage is designed with a low-profile door for enhanced headroom, and includes a Kwikset keypad entry lock for added convenience. This residence is delivered with a California Closets credit for personalized wardrobe systems. This is an extraordinary opportunity to own a piece of newly built excellence on one of Old Towns most iconic blocks. Located just one block from King Street and mere steps to the Potomac River and waterfront promenade, River Row offers unmatched access to the citys finest shops, acclaimed restaurants, cultural landmarks, and outdoor recreation. With over 20 dining options within a three-block radius, four parks within six blocks, and proximity to top-rated Lyles-Crouch Elementary School, this home supports an effortless and enriched lifestyle. Commuters will appreciate the easy access to Reagan National Airport (3.7 miles), King Street Metro and Amtrak/VRE Station (1 mile), and nearby thoroughfares connecting to Washington, D.C. and National Landing.