Nestled on renowned King Street in the heart of the Charlton - King - Vandam Historic District this magnificent Greek-Revival townhouse, built in 1841, offers a rare blend of old world charm and modern potential. Spanning over 20 feet wide on an oversized 100.17" lot, the home boasts original architectural details throughout, including intricate moldings, soaring ceilings, and multiple wood-burning fireplaces, evoking timeless elegance. The sun-filled, south-facing garden is a serene retreat, perfect for outdoor entertaining or peaceful relaxation. Large windows flood the interior with beautiful natural light throughout the day, highlighting the home's character and warmth. With unused FAR, this property offers exceptional potential for expansion or customization. A true gem, 20 King Street presents a rare opportunity to own a piece of history with boundless possibilities, making it an ideal blank canvas for those seeking classic New York charm with room to create their dream home.