AlamoSquare is a residential neighborhood and park in San Francisco, California, in the Western Addition. Its boundaries are not well-defined, but are generally considered to be Webster Street on the east, Golden Gate Avenue on the north, Divisadero Street on the west, and Fell Street on the south. Beautiful Victorian Homes and Oldest One in San Francisco, AlamoSquare, San Francisco. This is a beautiful area of San Francisco with many Victorian Homes. There is also the oldest home in San Francisco.