2017 40 Under 40: Nolan Lenahan, PE, LEED AP BD+C; 32

Associate, DLR Group


Nolan Lenahan, PE, LEED AP BD+C; 32

Associate, DLR Group, Sacramento, Calif.

BS Civil Engineering, University of California, Los Angeles (UCLA)

MS Structural/Earthquake Engineering, UCLA

Nolan Lenahan, PE, LEED AP BD+C; 32

Lenahan has worked in the architectural, engineering, and construction industry for 10 years. He has quickly grown in his leadership position at DLR Group and is responsible for operations of the engineering department in the California region. As one of the firm’s engineering leads, Lenahan directs a multidisciplinary team of building analysts and mechanical, electrical, and structural engineers by embracing a research-based and results-oriented approach. He is proficient in seismic design, building codes and design practices, reinforced concrete design, steel design, and seismic mitigation strategies for existing buildings. His goal is to provide engineering expertise for his clients throughout the full design of a building—from planning and concept design through construction administration and closeout. Lenahan’s expertise spans many different project types and sectors including arts and culture, aviation, hospitality, justice and civic, and education. Lenahan’s passion for teaching and educating is not limited to his peers at DLR Group. He gives back to the community through his involvement with outreach programs, such as the UCLA Alumni Mentorship Program. His professional affiliation with the Structural Engineers Association of California and the American Society of Civil Engineers positions him at the forefront of industry standards and gives him insight into upcoming trends. He enjoys playing all types of sports, but his favorites are soccer and softball. He currently plays in two adult soccer recreational leagues including indoor and outdoor soccer. He started the DLR Group softball team in the Los Angeles office and continues his softball career with the Sacramento team. In his spare time, Nolan enjoys traveling and experiencing new places.


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Consulting-Specifying Engineer's Product of the Year (POY) contest is the premier award for new products in the HVAC, fire, electrical, and...
40 Under Forty: Get Recognized
Consulting-Specifying Engineer magazine is dedicated to encouraging and recognizing the most talented young individuals...
MEP Giants Program
The MEP Giants program lists the top mechanical, electrical, plumbing, and fire protection engineering firms in the United States.
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Emergency power requirements, salary survey results, lighting controls, fire pumps, healthcare facilities, and more
October 2018
Approaches to building engineering, 2018 Commissioning Giants, integrated project delivery, improving construction efficiency, an IPD primer, collaborative projects, NFPA 13 sprinkler systems.
September 2018
Power boiler control, Product of the Year, power generation,and integration and interoperability
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Critical Power: Hospital Electrical Systems
This course explains how maintaining power and communication systems through emergency power-generation systems is critical.
Data Center Design
Data centers, data closets, edge and cloud computing, co-location facilities, and similar topics are among the fastest-changing in the industry.
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