Princeton University will build a new home for environmental studies and the School of Engineering and Applied Science on Ivy Lane across from Lewis Library, Payton Hall, and Princeton Stadium. (In this instance, "environmental studies" refers to the departments of GeosciencesEcology and Evolutionary Biology, and the High Meadows Environmental Institute.) The four buildings (all connected underground in one continuous sequence) will create a new ES & SEAS neighborhood that is carefully integrated into the surrounding context. It will maintain distinct identities for ES and SEAS and provide strong connections to nature and outdoor spaces. The project will advance the sustainability ethos of the University and reflect the importance of environmental studies and engineering in a 21st-century liberal arts university.

We design buildings and manage construction projects that help the University achieve our Sustainability Plan goals. See how on our sustainable design pages. The University is seeking LEED certification, a standard established by the U.S. Green Building Council, for the buildings.

If you have a question or concern about campus construction, please call us at 609-258-8023 (7:30 am – 5 pm) or submit a "Contact Us" form.

ES & SEAS Blasting Program

Limited blasting is required at the construction site in the locations marked in yellow below.  The University has used this type of technology on other campus construction sites, most recently at the ES & SEAS utility tunnel and the site of the East Campus Garage along Faculty Road. Blasting began in March 2022 and will continue until early 2023.  Blasting will take place on weekdays between 1:00 and 1:30 pm. The blasting will occur in the areas highlighted on the map below for the durations noted here:

  • Phase 1a began on March 16, 2022, and will continue for 40 days
  • Phase 1b began on April 18, 2022, and will continue for 4.5 months
  • Phase 1c will begin in early October 2022 and will continue for 4.5 months

ES&SEAS Blasting Zones

Sustainability features: 
Energy-efficient HVAC system and controls
Energy-efficient lighting and controls
Geo-exchange Heating and Cooling
Green roof
Healthier materials and finishes
Heat recovery systems for air handling units
High performance exteriors
LEED certification
Rainwater harvesting
Stormwater management using green infrastructure


Location information

666,000 GSF

Estimated completion

Winter 2025

Project team

Engineers - Structural
Engineers - MEP/FP
Engineers - Civil and Stormwater Design
Landscape Architect
Lab Planner
Senior Project Manager
Senior Project Manager
Project Manager
Program Executive
Project Planner
Field Manager