Sarah Jacobs / Business Insider
That was back in the beginning of 2013, and Shomaker has been working on the idea ever since.
Over two years later, it's become a reality: Rooftop Reds, the world's first commercially viable rooftop vineyard.
Located in Brooklyn's Navy Yard, Rooftop Reds is set to open to the public in mid- to late-September.
We took a trip to the rooftop to get the full preview.