Downtown Martinez is one of the oldest incorporated downtowns in Contra Costa County — a working marina, a Main Street with actual restaurants and bars, and a walkable residential pocket of early-1900s bungalows and Victorians.
Downtown housing stock is unusual: 1920s–1940s bungalows, Victorian-era homes, and some 1950s infill. 2- and 3-bedroom typical, 1,000–1,600 sqft, on smaller lots (5,000–6,500 sqft). Median around $650K.
Walkability is genuine here — you can walk to Main Street restaurants, the marina, the ferry terminal, Shoreline Regional Park, and the train station. One of the few Contra Costa neighborhoods that feels like a town, not just a subdivision.
Honest tradeoffs: train noise (the Capitol Corridor runs through downtown), and the waterfront has the Shell refinery nearby. I always walk candidate homes at the times of day that matter — morning train, evening wind, weekend activity.