Rule 14Correct return

Every shot that is good, including off the walls and from outside the court.

Points a to jPlain-English notes marked In practice

a
The ball is volleyed by an opponent, or touches an opponent's body, clothing or racket.
b
The ball bounces directly in the opponents' court, or hits the player's own wall first and then bounces in the opponents' court.
This is the shot off your own glass.
c
The ball bounces in the opponents' court and then hits their fence or wall.
Floor first, then anything.
d
The ball bounces in the opponents' court and then leaves the court, or touches the ceiling, lights or another object that is not part of the court.
The hitter wins, unless out-of-court play is allowed and the ball is retrieved.
e
The ball touches the net or posts and lands in the opponents' court.
f
The ball hits an object lying on the opponents' floor that is not part of the court, such as another ball.
g
The ball comes back over the net into the hitter's court and an opponent plays it, without touching the net, posts or the opponents' court, and the other conditions are met.
h
A double contact in one continuous swing is allowed if the ball's path does not change substantially.
A carry is fine, a second deliberate hit is not.
i
The ball lands in the corner where the wall meets the floor.
That counts as a good bounce.
j
Where out-of-court play is allowed, a ball hit from outside the court is good if it meets the conditions above.

Questions

Can you hit the ball off your own wall in padel?

Yes, off your own glass. The ball must then cross the net and bounce on the opponents' floor.

Is a ball that hits the corner good?

Yes. The corner where wall and floor meet counts as a correct bounce.