There’s one thing architect David Nagahiro didn’t want when designing the condo building at 10 Farnsworth St. in South Boston: For it to look like a glass and metal spaceship that just landed. Instead, Nagahiro of CBT wanted to create a modern structure that captures the gritty, industrial feel of the Fort Point Channel District, a historic cluster of city blocks crowded with former factories and warehouses dating to the late 1800s.

ALL THE RIGHT ANGLES: To allow a clean view of the windowed wall in the living area of this 4,300-square-foot penthouse, the corner bends at just under 79 degrees, instead of 90.

WATERMARK: Decorating an exterior wall is a black-and-white maritime-themed painting by LA artist Tomek Sadurski, who taps into the rich arts history of the neighborhood.

The result is a slick dark building with a facade that resembles an exoskeleton shielded with glass panes, stone and metal panels and iron-spot masonry. But inside the nine-unit building that was completed in May, the massive, three-bedroom penthouse offers a clean contrast. It’s open and white like a museum gallery. The floors are European oak, the doors without frames and the kitchen sparkling, with a long snowy marble island and matching Italian cabinetry. A steel staircase off the living area leads to the roof deck, and floor-to-ceiling windows throughout the $7.9 million condo provide views of the brick-filled neighborhoods.

Says Nagahiro: “We wanted the adjacent properties to be the artwork.”