I need to know like what hints were given to give you a clue of how the story was going to end.
The title certainly foreshadows the ending. The ending of the story has the House of Usher literally crumbling to pieces. The earth is shaking, the ceiling is falling and the walls are collapsing. It is all very dark and gothic. The narrator's description of the house also foreshadows its demise. The House of Usher is, like its occupant, in bad shape. It has not been cared for and is deteriorating.
I thought that I would add a quote for you about the decay of the house described early in the story,
"the crumbling condition of the individual stones. In this there was much that reminded me of the specious totality of old wood-work which has rotted for long years in some neglected vault, with no disturbance from the breath of the external air. Beyond this indication of extensive decay....."
