Jeremy–not sure the last time you’ve been to Seattle, but SoDo and South park are industrial areas just south of the city. Only about ten minutes away, but very industrial. Not sure if anyone in their right mind would start a truly urban winery.
K is in Georgetown, so it’s pretty darn close to an urban winery and urban sprawl will ensure that soon enough.
8 Bells is in the Roosevelt neighborhood and is definitely considered an urban winery, Reasonable prices as well.
In addition to 8 Bells, there is also Wilridge, which I guess depending on how you define urban winery would also qualify.