According to the LEED Reference Guide, "Hardscape consists of the inanimate elements of the building landscaping. Examples include pavement, roadways, stone walls, concrete paths and sidewalks, and concrete, brick, and tile patios." One could add to this list gravel paths and paved tennis courts. In addition, in LEED Interpretation #10113, USGBC stated that gravel paths and other areas using crusher fines are nonroof hardscape surfaces and should not be excluded from the calculations.

We have not seen a ruling on wood surfaces or artificial turf, but when in doubt, we recommend considering any 'inanimate" surface hardscape. This should be seen as an opportunity to meet the credit intent by using high-SRI materials.