The present disclosure provides a building construction system and method for preventing the moisture of soil from reaching floor or foundation of the building. The method includes steps of digging in soil for piles to a depth determined based on soil nature, raising plurality of concrete piles from the depth to a height above the ground/grade, connecting the piles using steel beams and placing transversal members between steel beams allowing for blocks to be placed between the transversal members to define a surface wherein concrete can be poured creating a raised foundation floor.

A system for forming ventilated crawl spaces or interspaces or elevated platforms which comprise dome-shaped formwork elements supported on supporting tubes; the ventilated crawl space or interspace or elevated platform comprises first, second and third interconnection elements, which communicate with a lower end of the supporting tubes, which are adapted to form a channeled receptacle, which rests on a foundation or surface, for reinforcements; such channeled receptacle is adapted to receive a concrete casting to form a connecting beam between the supporting tubes.