Charming Gem with Endless Potential in Vallejo Highlands! Nestled in the established Vallejo Highlands neighborhood, this charming 1942 residence at 1012 Mariposa Street offers nearly 1,200 square feet of inviting living space defined by authentic mid-century character and a cozy floor plan featuring a traditional wood-burning stove. The property stands out for its superior 6,098 square foot lot, providing significantly more privacy and expansion potential than neighboring parcels, making it an ideal canvas for a dream garden or a future ADU. Beyond the home's vintage appeal, the location is a commuter's paradise with the Vallejo Ferry Terminal just minutes away for scenic access to San Francisco. Boasting a highly walkable rating, the home is situated only a block from Highland Elementary and a short stroll from the recreation at Grant Mahony Park, perfectly balancing peaceful residential living with convenient proximity to downtown amenities.