Multifamily housing units were the buildings with the highest average Energy Star score in the United States as of May 2025. Apartments had, on average, a score of over **** out of 100. Meanwhile, retail buildings were on the other end of the spectrum, with a score of approximately **** points. Buildings with lower scores were less energy efficient.
Gross floor area and average energy efficiency score of multifamily housing and commercial buildings certified by Energy Star in the United States as of May 2025, by building type
Characteristic
Surface area of certified buildings in million gross square feet
The lowest possible efficiency score is 1 and the highest is 100.
Supplementary notes
Over half of the buildings included in the registry received a certificate from Energy Star in more than one occasion. Such buildings are only taken into account once. Only the data from their last certificate was used.
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Statista. (May 16, 2025). Gross floor area and average energy efficiency score of multifamily housing and commercial buildings certified by Energy Star in the United States as of May 2025, by building type [Graph]. In Statista. Retrieved May 20, 2025, from https://www.statista.com/statistics/1356978/energy-star-score-of-certified-buildings-us-by-type/
Statista. "Gross floor area and average energy efficiency score of multifamily housing and commercial buildings certified by Energy Star in the United States as of May 2025, by building type." Chart. May 16, 2025. Statista. Accessed May 20, 2025. https://www.statista.com/statistics/1356978/energy-star-score-of-certified-buildings-us-by-type/
Statista. (2025). Gross floor area and average energy efficiency score of multifamily housing and commercial buildings certified by Energy Star in the United States as of May 2025, by building type. Statista. Statista Inc.. Accessed: May 20, 2025. https://www.statista.com/statistics/1356978/energy-star-score-of-certified-buildings-us-by-type/
Statista. "Gross Floor Area and Average Energy Efficiency Score of Multifamily Housing and Commercial Buildings Certified by Energy Star in The United States as of May 2025, by Building Type." Statista, Statista Inc., 16 May 2025, https://www.statista.com/statistics/1356978/energy-star-score-of-certified-buildings-us-by-type/
Statista, Gross floor area and average energy efficiency score of multifamily housing and commercial buildings certified by Energy Star in the United States as of May 2025, by building type Statista, https://www.statista.com/statistics/1356978/energy-star-score-of-certified-buildings-us-by-type/ (last visited May 20, 2025)
Gross floor area and average energy efficiency score of multifamily housing and commercial buildings certified by Energy Star in the United States as of May 2025, by building type [Graph], Statista, May 16, 2025. [Online]. Available: https://www.statista.com/statistics/1356978/energy-star-score-of-certified-buildings-us-by-type/