Welcome to 349 Buck Avenuean iconic property on one of Vacaville's most cherished streets. Set on a rare .59-acre estate lot spanning half a block, this 2,790 sq ft single-story ranch blends timeless mid-century style with modern updates. Originally built in 1954 by the Hartley family, the home showcases cedar paneling, white oak hardwood, clear douglas fir baseboard, and reverse board & batten siding. Oversized windows, deep eaves, and mature trees enhance the curb appeal and privacy. Inside, you'll find 3 bedrooms, 2.5 baths, a den, full laundry room, and additional hookups near the bedrooms. A wood-burning fireplace anchors the living area, and the newly refinished fir floors shine throughout. The kitchen boasts Bosch appliances, new countertops, sink, and a stylish backsplash that respects the home's MCM character. Recent upgrades include a new roof, replaced sewer lateral, drought-tolerant landscaping, and a fully paid NEM1 solar system. With ADU/SB9 potential, easy access, and only blocks from Downtown Vacaville, this is an exceptional opportunity to move in, relax, entertainor create something even more extraordinary.