(1) When building with wood or CMU as required by WAC 246-359-200 through 246-359-580 the following requirements apply:

(a) Floor area must be limited to three thousand six hundred square feet per building;

(b) Height must be limited to one story; and

(c) All floor surfaces must be above grade, no basements.

(2) When building to WAC 246-359-600, alternate construction, the limitations in subsection (1) of this section do not apply.