The O’Sullivan House | Circa 1873 | Historic Federal Elegance with Private Garden & 2-Car Parking. At the crossroads of heritage and modern living, 719 Gibbon Street is a one-of-a-kind residence built in 1873 by Daniel and T.J. O’Sullivan. Nestled on a tree-lined block in the heart of Old Town Alexandria’s coveted southeast quadrant, this meticulously preserved and thoughtfully updated Federal-style rowhouse offers a rare combination of historic character, outdoor living, and urban convenience. Inside, you are greeted by a dramatic entry foyer with soaring ceilings, original millwork, and gleaming hardwood floors that flow through the sun-filled main level. The elegant formal dining room centers the home and connects to both a bright living room with gas fireplace, and a beautifully renovated kitchen outfitted with granite countertops, Miele refrigerator, beverage fridge, wall oven, gas cooktop with downdraft, and a breakfast island. Oversized French doors open to a showstopping private brick courtyard, professionally landscaped with raised garden beds, lush plantings, and a fruiting apple tree— a truly rare sanctuary in the heart of the city. Beyond the courtyard gate, enjoy two deeded off-street parking spaces accessed via a rear alley — a premium feature in Old Town. Upstairs, two bedrooms are filled with natural light and complemented by two full bathrooms, including one with a jetted soaking tub. The fully finished lower level offers a flexible suite perfect for guests, a home office, family/media room, or play space — complete with a third full bathroom and walk-up stair access to the garden. Located just five blocks to King Street and five blocks to the Potomac waterfront, you’re moments from Old Town’s finest dining, shopping, marina, parks, and trails. With immediate access to I-95 and the Beltway, and just minutes to National Airport and Amazon HQ2, this home is as connected as it is serene. The O’Sullivan House isn’t just a home — it’s a story. A slice of Alexandria’s architectural past, lovingly maintained for modern life. Opportunities to own homes of this provenance, privacy, and location are exceptionally rare. Register interest now — showings begin soon, and this one will not last.