Water Conservation: Administration Campus

Thursday, September 23, 2021

Completed in 2017, the employee campus has achieved LEED Platinum status for design and efficiency, the U.S. Green Building Council’s highest rating. The timeline below outlines the 17-acre complex’s water conservation measures.



  • The site uses a multidimensional planting and irrigation strategy, including a varied rock palette to add color, texture, and shape to outdoor seating areas.
  • Desert-adapted and native trees and shrubs provide additional low-water habitat for pollinators, including birds, bats, bees, and butterflies.


  • Low-flow plumbing installed throughout.


  • The campus is the second new-construction project at the former Annenberg estate to achieve LEED certification. This project achieved LEED platinum, the U.S. Green Building Council’s highest rating.
  • An engineered wetland has been added that will use a plant-filtration system to treat wastewater from campus buildings and the Center. The water will be recirculated to flush toilets and irrigate plants at Sunnylands.

Administration building exterior



  • Engineered wetlands currently in test phase for capturing and treating 100% of water from the Center & Gardens and Administrative Campus for reuse and irrigation needs.