We had a similar situation at our first home in TV (except no dog). We had a "golf course view" until our neighbor planted a number of fruit trees right on the property line between our houses (not on the easement). He also planted a row of bottlebrush along his back property line. Blocked the golf course view for the whole street. He did not go to district/ARC folks for a permit; just planted them. Felt like we were living in a forest. When we complained/reported to the powers that be, they came out, looked, and said since he had already planted they would not make him remove them, but when the trees/bushes died, he would not be allowed to replant. I said, "So if we break the rules first before you find out, you won't hold us to them!" Of course the inspector denied that was what he was saying. Needless to say, we sold that house and moved to one right on the golf course with no one behind us. Also, great neighbors now. Much happier here.