327 Grand Boulevard in San Mateo presents a rare investment opportunity in one of the Bay Area's most coveted submarkets. This triplex offers stable income with tremendous upside potential including the ability to build 3 ADU units according to a pre-feasibility study from an ADU consultancy. The property spans 2,107 square feet on a 7,651 square foot lot, with two 2BR/1BA units and one 1BR/1BA unit. All three units are currently occupied. Located in San Mateo's North Central neighborhood, just one mile from Downtown Burlingame's restaurants and boutiques, with Downtown San Mateo's amenities nearby. Convenient access to Highway 101 and Caltrain provides quick commutes to San Francisco and Silicon Valley. Coyote Point is 2.1 miles away and SFO is 5.3 miles away. Strong rent growth, housing shortage, proximity to Silicon Valley employers, and repositioning potential make 327 Grand Boulevard exceptional for both cash flow and appreciation-minded investors. Note: The adjacent triplex at 321 Grand Boulevard and the fourplex at 315 Grand Boulevard are also available for sale.