crumbling

describes a building that is old and falling into pieces

yeso desmoronado

describes plaster on a wall or ceiling that is breaking and falling off

ruina desmoronada

often used to emphasize the state of decay of an ancient structure

a menudo se usa para enfatizar el estado de deterioro de una estructura antigua

tenement desmoronado

describes a poorly maintained apartment building that is falling apart

Un conventillo que se está desmoronando por la edad o el abandono.