The neighborhood many call “Happy Valley” is a friendly and one of the sunniest districts in San Francisco, and is about as close as it gets to the geographical center of the city. While it used to be a predominantly blue-collar enclave, many of its current residents are young urban professional families. The community’s main avenue of commerce, 24th Street – lined with cafés, boutiques and other light services -- at times seems like it is hosting as many baby strollers and canines as people. Strollers and dogs are equally as visible on the sidewalks and porches of its comfortable, well-kept Victorian and Edwardian row houses. A Saturday Farmer’s Market and proximity to Dolores Park add to the ambiance of this San Francisco comfort zone.