Provided is an environment control house 1 in which strength can be improved by adopting a multi-surface structure. This environment control house 1 comprises a main body part 10 and a pair of wall parts 20. The main body part 10 includes: a top surface part 101 formed in a rectangle and arranged at a topmost part； a pair of rectangular upper skirt-surface parts 102 connected to the respective edges, in the width direction, of the top surface part 101； and a pair of rectangular lower skirt-surface parts 103 connected to an edge, in the connecting direction, of the respective upper skirt-surface parts 102, and arranged so as to be inclined with respect to an installation surface L. Each wall part 20 includes: a central wall-surface part 210 connected to an edge, in the length direction, of the top surface part 101； a pair of intermediate wall-surface parts 220 connected to the respective edges, in the width direction, of the central wall-surface part 210, and connected to an edge, in the length direction, of the respective upper skirt-surface parts 102； and a pair of side wall-surface parts 230 connected to an edge, in the width direction, of the respective intermediate wall-surface parts 220, and connected to an edge, in the length direction, of the respective lower skirt-surface parts 103.
