According to the updated Building Policies of Williams College, all building projects of $5.3 million dollars or above must pursue LEED Gold certification (or a similarly high-performance building standard) or higher. This page lists the certified buildings and explains the sustainable design choices behind them in detail.
An explanation of the building certifications used at the College can be found here.
| Building | Year | Certification Standard | Modeled EUI* |
Actual EUI* |
Air Tightness Test Results |
| Hollander Hall | 2008 | LEED Gold | |||
| Schapiro Hall | 2008 | LEED Gold | |||
| Sawyer Library | 2014 | LEED Gold | |||
| Weston Athletic Complex | 2014 | LEED Gold | |||
| Class of 1966 Environmental Center | 2015 | LBC Petal (awaiting certification for full Living Certified) |
0.15 cfm75/sf | ||
| Weston Hall | 2016 | LEED Gold | 44 | ||
| Horn Hall | 2016 | LEED Gold | 25 | 29 | |
| Williams Bookstore | 2017 | LEED Platinum | 40 | 0.12 cfm75/SF | |
| Garfield House | 2019 | LEED Gold + Passive House | 28 | ||
| Williams Inn | 2019 | LEED Platinum | 60 | 0.127 cfm75/sf | |
| CDE Fellows Hall | 2019 | ILFI Zero Energy | ** | 0.085 cfm75/sf | |
| Saint Anthony Hall (CDE) | 2019 | LEED Gold | 30 | 0.40 cfm75/sf | |
| South Science | 2018 | Awaiting certification (LEED Gold) | 125 (combined EUI N&S) | 0.11 cfm75/sf | |
| North Science | 2021 | In construction (LEED Gold) | 125 (combined EUI N&S) | ||
| Davis Center | — | Schematic Design (as of Jan 2021) (LBC Petal) | |||
| Fort Bradshaw | 2021 | Awaiting certification (LEED Silver + LBC Petal) | 30 | 0.38 cfm75/sf |
Last updated January 2021
*EUI stands for Energy Use Intensity, the amount of energy used per square foot per year. A lower EUI signifies a more efficient use of space.
** The CDE Fellows Hall and St. Anthony’s Hall together have a target EUI of 30, a value that is low due to the residence hall’s achievement of the Net-Zero Energy petal of the Living Building Challenge
*** The combined EUI for the North and South buildings is estimated at 137, with the North Science Building expected to achieve a much lower portion of the EUI because it will have departments that require offices, not necessarily energy-intensive laboratories
LEED projects
LBC projects
Net Zero Energy
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