Magnusson Klemencic Associates

San Ysidro US Land Port of Entry

The San Ysidro US Land Port of Entry is the busiest border crossing in the world, serving 150,000 people per day. The facility remained operational through design and construction, and recently achieved LEED Platinum for its innovative water and energy systems.

San Ysidro, California

Miller Hull Partnership

Building Size:

225,000 sf

Project Cost:

$400 Million


LEED Platinum


  • Honorable Mention: Stellar Architecture using BIM, AIA Technology in Architectural Practice, 2013
  • Project of the Year, APWA, 2015
  • LEED Project of the Year, San Diego Green Building Council , 2015


Overhauling the World's Busiest Border Crossing is No Small Feat

Currently under construction, San Ysidro US Land Port of Entry project includes a 225,000 sf facility, new northbound and southbound I-5 road connections to Mexico, and additional buildings for homeland security. Interface designed mechanical systems that focused on air quality, as well as energy and water conservation. Part of this included a 305,000-gallon water reclamation system that, along with water efficient fixtures, will save 28 million gallons each year – a significant savings for a region with drought concerns. 

Nic Lehoux
Magnusson Klemencic Associates
Nic Lehoux