Step 1:
One side of the paper is light brown and the other is red. Prefold in half over both lines.

Step 8:
Fold the edge downwards

Step 6:
Fold the roof into an angle of 45 degrees

Step 5:
Fold the edge straight downwards

Step 7:
Glue/tape the edges together

Step 3:
Prefold

Step 2:
Fold the edges 1/3 of the centerline, see white bar as guidance.

Step 4:
Fold the edge to the prefolded line

Step 9:
Fold the edges straight downwards, use tape or glue.

Fold both edges inwards....                   Done!
This is an Origami video with instructions for the dog house: