The sidewalk's exactly the same colour, which was intentional. Almost everything on the finished table will be that colour with shop fronts and the ocassional painted wall will be different and the roadways will be grey.
Putting the building on a grey baseboard changes the look of the sidewalk but the baseboard is too big to fit in my photo area so you'll just have to take my word for it

I'm actually toying with the idea of painting everything as if it was night time in which case Ethan's Eatz won't make it onto the final board at all...