Sentinel Square Office Complex

Sentinel square office complex

Cardno is the structural engineer for all three phases of Sentinel Square, a 1.5 million sf high security office complex located in the NoMa District of Washington, D.C.

Sentinel Square, a 1.5 million sf office complex, located in the NoMa District of Washington, D.C. appeals to federal and local government agency tenants due to its high-security features, environmental friendliness, modern and efficient work spaces and affordability.

Cardno, the structural engineer of record for all three phases of Sentinel Square, has extensive experience in designing these types of office buildings in the Washington, D.C. area. 

Sentinel square office complex

Phase I is a 12-story, 440,000-sf office building above three levels, 118,000 sf of below-grade parking (317 spaces) located at 90 K Street, NE. Phase I, a cast-in-place concrete structure certified as LEED Gold, is designed to meet Level IV Security Protocols in accordance with GSA’s ISC Design Criteria - including 30-foot stand-off distances, progressive collapse avoidance, hardened structure and facade, blast resistant glass, distinct garage structures, expendable entry ways and a separate vertical transport from garage to security check-point. 

Phase II is a 12-story, 304,000-sf office building above four levels of below-grade parking,108,000 sf (220 spaces) located at 1050 First Street, NE and is certified as LEED Silver. Phase III is a 12-story, 517,500-sf office building above three levels of below-grade parking, 161,500 sf (320 spaces) located at 45 L Street, NE.  

Phase III is pursuing LEED Silver certification and estimated to be complete in 2020. 

Like Phase I, Sentinel Square Phases II and III are also designed to meet Level IV Security Protocols. A courtyard, landscaping amenities and finishes that mirror and complement one another unify the three buildings on the site.