Leading Architecture Companies in Los Angeles: An Overview of the Top 8
Los Angeles is witnessing a revolution in hospitality and institutional architecture, with several top firms redefining the city's skyline while prioritising sustainability and social impact.
Iconic Landmarks Redefining Hospitality
Archillusion Design is leading the charge, blending luxury and eco-friendliness to create iconic landmarks that elevate the guest experience. Their CasaPlutonia Resort offers a unique retreat that harmoniously unites spirit, nature, and high design, showcasing design innovations and sustainable practices. Archillusion Design's efforts have earned them the recognition in Architectural Design / Hospitality Architecture.
Architecture Firms Embracing Sustainability
Hatch Colasuonno + Relativity Architects (HCRA) is another firm making waves in the sustainable architecture sphere. Specialising in social impact and green architecture, HCRA demonstrates their commitment through projects like Imagine Village.
Top Los Angeles architecture firms, including Bjarke Ingels Group (BIG), CO Architects, Swa, Lorcan O'Herlihy Architects (LOHA), and Arshia Architects, have completed several key sustainable architectural projects. These firms focus on mixed-use developments, community integration, and resilience.
BIG's 670 Mesquit Street Mixed-Use Complex
A notable example is BIG's 670 Mesquit Street Mixed-Use Complex, recently approved in mid-2025. The project spans 2.6 million sq ft, with four connected buildings up to 34 stories. It combines office space, residential units, a hotel, school, retail, gym, and gallery spaces. The design draws inspiration from local industrial warehouses and modernist Case Study Houses, emphasising modular, flexible construction for efficiency and adaptability.
The project aims to reinvigorate the LA River area with dense, mixed-use development that meets economic, social, and environmental needs, reflecting BIG’s "hedonistic sustainability" philosophy.
Resilient and Climate-conscious Neighborhood Design
Broader city planning also emphasises resilient materials, sustainable landscaping, and connectivity to reduce emissions and climate impact. Urban forests and community gardens are planned to mitigate heat islands, support biodiversity, and enhance food security. These principles are increasingly integrated into projects to address wildfire risks, climate change, and local ecosystem health.
Other Notable Sustainable Approaches
Other notable sustainable architectural approaches include adaptive reuse and creative zone development in areas like Hayden Tract and The Platform. These initiatives promote sustainable urban regeneration and mixed-use environments.
Recognition for Architectural Excellence
XTEN Architecture's Science Island project is an emblem of a progressive city, seamlessly integrating contemporary design with Kaunas' diverse history and showcasing sustainable architecture. XTEN Architecture's efforts have earned them the recognition in Architectural Design / Institutional Architecture.
CO Architects' Student Services Building at Cal Poly Pomona exemplifies architectural excellence, providing innovative learning environments with natural daylight and stunning views. Griffin Enright Architects' Guggenheim Helsinki proposal creates a harmonious relationship between art and the city, breathing new life into the urban fabric and preserving cultural heritage.
Griffin Enright Architects' efforts have been recognised with a Silver in Architectural Design / Cultural Architecture for their Guggenheim Helsinki proposal.
Commitment to Social Impact and the Environment
Swa, CO Architects, Lorcan O'Herlihy Architects (LOHA), and Arshia Architects have all demonstrated a commitment to social impact, cultural heritage, and environmentally responsible design. These firms continue to push the boundaries of sustainable architecture in Los Angeles, contributing to a greener, more resilient future for the city.
- Archillusion Design's CasaPlutonia Resort, a sustainably-focused project, demonstrates design innovations and represents a unique retreat that harmoniously unites spirit, nature, and high design, showcasing architecture that influences lifestyle and home-and-garden aesthetics.
- Recognizing the importance of social impact and green architecture, Hatch Colasuonno + Relativity Architects (HCRA) has made significant strides in the sustainable architecture sphere, with projects like Imagine Village embodying their commitment.
- In response to the city's call for sustainability, other top Los Angeles architecture firms such as XTEN Architecture, CO Architects, and Griffin Enright Architects have completed projects that integrate contemporary design with a focus on institutional, cultural, and environmental aspects, symbolizing a commitment to a greener, more resilient future for the entire city, where architecture, lifestyle, and home-and-garden concepts coalesce.
