A prefabricated demising wall assembly comprising two substrate panels each with an interior and exterior surface, the substrate panels configured to span between a floor and a ceiling of a building unit； a plurality of metal studs connecting the interior surfaces of the two substrate panels, wherein the plurality of metal studs define a space between the substrate panels； a fire sprinkler pipeline between the two substrate panels, wherein at least some of the plurality of metal studs have an aperture accommodating the fire sprinkler pipeline through an interior of the demising wall assembly； and a plurality of hanger elements operably attached to the exterior surfaces of the two substrate panels, wherein the plurality of hanger elements are configured to connect to a plurality of removable finish panels.
