The answer is <u>detached</u>.
Detached means something not connected to any other structure or building, separated from the rest or isolated. In streets dead-end, at the very end of it, it's common to find some type of detached building, like a house; and such isolation don't tend to bring anything interesting or exciting to people around it, but dullness.
Completely unrelated, but that is a great sentence, I want that painted as a quote on my wall.
Also, the punctiation seems right to me. But you might be able to use a ";" instead of a comma, im gonna check that real quick.
