Tasked with transforming a 93-square-foot brick boiler room into a guesthouse, architect and metalworker Christi Azevedo flexed her creative muscle. The architect spent a year and a half designing and fabricating nearly everything in the structure save for the original brick walls. "I treated the interior like a custom piece of furniture," she says.  Photo 3 of 7 in Staircases We Love  by Diana Budds from A Compact Three-Story Brick Loft in San Francisco

Staircases We Love

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Tasked with transforming a 93-square-foot brick boiler room into a guesthouse, architect and metalworker Christi Azevedo flexed her creative muscle. The architect spent a year and a half designing and fabricating nearly everything in the structure save for the original brick walls. "I treated the interior like a custom piece of furniture," she says.