Here we have an example of how infill affects the neighborhood. In the foreground, we have two small cottages, typical of the street. The two houses next door are infill, looming over their neighbors. You can also see one in the background.
Sometimes a lilac needs a little help from its next door neighbor. The neighbor in question is a tall fir tree.
I love this re-do of a frame for an espalier. New frame is made of 4x4s. You can see the old 2×2 frame also. The yard is so often about redoing.