Award-winning fashion designer Christian Siriano knows this better than most and has recently brought his talents from the runways and red carpets to homes, hotels, and more with the launch of Siriano Interiors. The full-service design firm also includes a new line of mid-century modern–inspired bespoke furniture for sale exclusively on 1stDibs.com. Siriano shares one of his newest projects with us here—a New York City apartment in the Flatiron District.