text: Yeah that could be it. Maybe. There's also some houses closer to the park that have the same address twice on them. Plus id be interested to know if the 1/2 addresses are actually legal and used that way. I don't think so. Also, it isn't even very clear going off the maps which direction a lot of the buildings are facing and like you said, it doesn't seem like imports. Id be surprised if all the addresses were added only by surveying. Some of them were probably guessed at in a hurry, which would explain the extra 1 theory. 