吀栀e rest of the site is organized around an arti昀椀cial arroyo across which the program morphs from public to private and urban to residential. 吀栀e roof system has a cross- grained panelized system, producing a basket-weaving style lighting e昀昀ect. 吀栀e water drainage from this system reinforces the arroyo, transforming the site into a process landscape which settles into the larger ecology of Joshua Tree. 26 27