Welcome to 20 Old Wagon Road, nestled in the highly sought-after Havemeyer Park section of Old Greenwich. This charming two-bedroom, one-bath ranch offers the rare combination of move-in-ready comfort and exceptional long-term potential. Set on a level and dry .31-acre lot in R-12 zoning, this property is surrounded by many newly constructed homes-offering a prime opportunity for expansion or new construction. The home features an open-concept layout with a bright living and dining area, bay window, and wood-burning fireplace. The kitchen flows easily into the main living space, and gleaming hardwood floors run throughout. A new roof was installed 2024, adding peace of mind for the next owner. The full-height, unfinished basement includes laundry and existing plumbing for a potential second bathroom-presenting an easy path to increase finished square footage. Whether you're looking for a place to call home now with room to grow, or seeking a site for your next build, this property delivers unmatched flexibility in a prime Old Greenwich location. Convenient to train, beach, shops, and parks, and zoned for Mianus Elementary and Eastern Middle School.