house, you want to build a garage, you have to get a permit to take it out, we may not grant it automaticly, it can be a process that is challenging. >> we won't issue a permit to put in a garage or a curb cut, that requires a removal of the tree, until we get the tree removal permit first. so there's not a fate i've got my garage built and you can't have the tree standing in the way. >> used to happen a lot. the trees were, everybody forgot about us and then the garage was there, and people would say, you can't tell me i can't use my garage. >> then the little streets, how who is responsible for the trees and gardens and everything else there. >> in most case, it is the adjacent property owner who are responsible. so even though those, when those streets dead end, we have a lot in san francisco, they're unaccepted streets, it is too steep to build there, the street couldn't go through, the property owner, the public right of way, it is still where the street would have been. but the adjacent property owners have to take care of that area. in some cases they made beautiful gar dens and some