Rare RSA3 vacant lot in the heart of East Mount Airy just steps from the Sedgwick Regional Rail Station for car-optional living. At 4,847 square feet (21 × 194 ft), this deep parcel is one of the largest single lots available in 19119. RSA3 zoning permits two residential units by right, making it an ideal site for a twin, duplex, or two detached homes. Public water and sewer are available. No flood insurance required. Surrounded by established rowhouses and active new construction, this is a build-to-sell or build-to-hold opportunity in one of Northwest Philadelphia's most connected, walkable neighborhoods. Minutes to Germantown Ave shops, Wissahickon Park, and direct regional rail to Center City. Seller is motivated; bring all offers. Buyer responsible for due diligence, permits, and zoning confirmation.