In 2017, benchmarking expanded to include midsize buildings (25,000–50,000 square feet), adding roughly 9,000 properties for a total of 25,000 properties encompassing more than 3 billion square feet in NYC. We found that 68 percent of New York City’s benchmarked buildings are smaller than 100,000 square feet. Together, they account for just one-third of the benchmarked floor area.
The addition of midsize properties provides insight into how smaller buildings differ from larger ones. The overwhelming majority of midsize buildings are used for multifamily housing, and this sector consumes significantly more energy and water per square foot than their larger counterparts: their median site energy use intensity is 15 percent higher. As a large contributor to NYC’s overall resource use, this sector deserves additional attention.
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