Irrigated area is the amount of outdoor vegetated area that is supplied water regularly, measured in square feet, square meters, or acres. Typically, this includes landscaped areas that are irrigated with or without an in-ground/automatic irrigation system along with areas regularly watered by hand. If you have vegetated areas that were specifically xeriscaped to require no water at all, these may be included in your total. However, you cannot include hard/un-vegetated surfaces such as patios, decks, and driveways.
Irrigated area is not used in any of your energy metrics. It is only required for the Water Score for Multifamily Properties. However, it can help you better manage your outdoor water use, by tracking your outdoor water use per square foot of irrigation.
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