WAC 246-359-170
WAC 246-359-170. Wood framed construction and concrete masonry unit (CMU) general limitations
(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.