The passing of Lorcan O'Herlihy, the Irish-born architect and founder of Lorcan O'Herlihy Architects (LOHA), marks the end of a remarkable career that spanned over three decades. O'Herlihy's death at 66 leaves a void in the architectural world, particularly in Southern California, where his work was most prominent. His passing is a reminder of the profound impact an individual can have on their field, especially when their work is deeply intertwined with social and urban issues.
O'Herlihy's journey began in Dublin, Ireland, where he was born in 1959. He studied architecture at California Polytechnic State University in San Luis Obispo, graduating in 1981. His academic pursuits continued with a Master of Arts in History and Critical Thinking at the Architectural Association in London, where his research focused on social engagement and urban strategies. This academic foundation would later inform his professional practice, as he advocated for architecture's role in addressing social and urban challenges.
Before establishing LOHA, O'Herlihy worked with several internationally recognized offices, including Kevin Roche John Dinkeloo and Associates, I. M. Pei and Partners, and Steven Holl Architects. These experiences likely contributed to his unique approach to architecture, which emphasized the relationship between buildings and the broader urban context.
LOHA, founded in 1994 in Los Angeles, became a beacon of innovation in Southern California's architectural landscape. The firm was particularly recognized for its multifamily housing and mixed-use developments, which challenged conventional relationships between private and public space. Projects like Formosa1140 in West Hollywood, Habitat 825, Mariposa1038, SL11024, and MLK1101 Supportive Housing demonstrated O'Herlihy's ability to create spaces that fostered social interaction within dense urban environments. He believed that architecture should be understood as an active participant in shaping urban life, a belief that is evident in his work.
O'Herlihy's influence extended beyond Los Angeles. In 2016, LOHA established a Detroit office, contributing to projects that addressed urban revitalization and neighborhood development. These projects, such as those in Brush Park and Milwaukee Junction, explored how architecture could respond to shifting demographic, economic, and social realities while maintaining a focus on community life and public space. O'Herlihy's work in both cities demonstrated his commitment to addressing the complex interplay between density, vacancy, and community engagement.
O'Herlihy's academic career was equally impressive. He taught and lectured internationally at institutions such as the Architectural Association, SCI-Arc, Columbia University, Carnegie Mellon University, Pratt Institute, Cranbrook Academy of Art, and the University of Southern California. His professional and academic pursuits were deeply intertwined, as evidenced by his publication 'Architecture Is a Social Act' (2020), which articulated the principles that guided his work and his long-standing interest in the relationship between architecture and the broader forces shaping cities.
O'Herlihy's contributions to the field were widely recognized. In 2004, he was named an Emerging Voice by the Architectural League of New York, and in 2009, he was elevated to the College of Fellows of the American Institute of Architects. Under his leadership, LOHA completed over 100 projects across three continents and received over 200 national and international awards, including eight AIA National Awards, the World Architecture Festival Housing Prize, the AIA Los Angeles Gold Medal, the AIA California Maybeck Award, and the AIA California Lifetime Achievement Award. In March 2026, LOHA announced a transition to a collective ownership structure, reflecting O'Herlihy's commitment to the long-term future of the office and its ongoing work.
O'Herlihy's passing is a significant loss for the architectural community. His work continues to be an influential reference point for architects exploring how design can contribute to broader civic and cultural questions, particularly in the areas of housing affordability, density, and equitable urban development. His legacy is a testament to the power of architecture to engage with and shape the social and urban landscape.
