From the third floor of a 102-year-old town house in San Francisco’s Cole Valley, seeing is unbelievable. This perch enjoys a panorama extending to the Marin headlands. Moreover, the owners of the house have a series of impressive artworks.

In renovating this space, local architect John Lum explains, “We wanted to create a light-filled glass pavilion that would focus on the views while also providing enough wall space for the art collection.”