I WISH I lived here! The best time to visit Belvedere Street? Halloween! The neighborhood goes all out. These wealthy homeowners decorate their enormous and charming homes with lights, pumpkins, monsters and more. It's a narrow street in Cole Valley that has a lot of sweetness and elegance. Belvedere residents also get together once a year for a large, block-wide garage sale. It's a place that is great to bring your kids and also a great place to get some exercise, as it is a sloping hill.