In Cobble Hill, They're Proud of Their Garages

This heap of undistinguished bricks was built in 1918. Or so it would seem. Funny, though, the bricks don't look very old. Certainly the garage door is newish. And then there's that "CC." Which could be the initials of the builder. Or maybe it's a sly reference to the old abbreviation for "carbon copy." Could it be that the owner built a new garage where an old one used to sit and is having a joke with us? Not sure what is going on here.