4131 ILLINOIS Avenue NW Experience European craftsmanship in this stunning 3-level corner townhouse in the heart of Petworth. Built with natural materials marble, stone, and wood-this 4BR/3.5BA home offers 2, 050 sq ft of elegant living space with soaring ceilings and designer finishes. The chef's kitchen features Miele & Bosch appliances, while the fully finished basement includes a second kitchen and private entrance, making it perfect for guests or potential income. Energy-efficient European windows provide superior insulation and soundproofing. Eco-conscious buyers will appreciate the solar panels and fast EV charger. Enjoy hardwood floors, solid wood doors, a marble fireplace, projector-ready wiring, and a primary suite featuring a spa-style stone soaking tub, heated floors, and an abundance of natural light. Outdoor spaces include a fenced backyard and a welcoming front porch. Offered furnished or unfurnished. Situated on a tree-lined block, this home is walkable to Rock Creek Park, neighborhood cafes, and Metro, combining style, efficiency, and community.