To save the tree, Carpenter called in an arborist, who helped Carpenter and the Domineys nurse it back to health. Carpenter then built the parts of the pavilion around the tree, moved the foundation away from the roots, and used permeable concrete slabs so that water would properly drain into the ground.  Photo 9 of 16 in 15 Brilliant Designs That Work Around Nature from Dominey Pavilion and Carport