Holmes US

Striving for Engineering Excellence.

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About the firm

Holmes US delivers premium structural engineering, fire protection engineering, natural hazards risk assessment, and mass timber design. Originating from Holmes Group, which was founded in New Zealand over 65 years ago and employs more than 500 people worldwide, the US practice partners with architects, developers, and project teams on commercial, civic, academic, and residential developments. Holmes US services North America and the Pacific Rim from West Coast offices.

Firm type
Structural Engineering · Fire Protection Engineering

People

Zander SivyerManaging Principal

Capabilities

Structural Engineering

Delivering innovative and sustainable design solutions across diverse building materials, from new construction to seismic retrofits.

  • New building structural design

    Engineering advanced concrete, steel, masonry, and wood structures to meet performance and sustainability goals.

  • Seismic retrofit and existing building upgrades

    Evaluating and retrofitting unreinforced masonry and other existing buildings to improve earthquake resilience.

  • Historic preservation and adaptive reuse

    Breathing new life into historic landmarks by combining heritage preservation with modern seismic performance.

  • Mass timber design

    Leading sustainable design with innovative mass timber structures, including CLT, glulam, and hybrid systems.

  • Performance-based structural design

    Utilizing non-linear analysis and advanced engineering to challenge prescriptive code and achieve optimal performance.

Fire Protection Engineering

Integrating fire science with structural design to protect property assets, occupants, and communities.

  • Structural fire engineering

    Delivering performance objectives and cost savings using advanced analysis of fire-structure interaction.

  • Fire and life safety design

    Developing holistic fire safety systems, egress strategies, and compliance pathways for complex structures.

  • Wildfire and wildland urban interface design

    Designing fire risk reduction and wildfire protection strategies for buildings located in the wildland-urban interface.

Natural Hazards Risk Assessment

Evaluating vulnerability to extreme events and developing mitigation strategies for a changing climate.

  • Earthquake, flood, wind, and wildfire vulnerability assessments

    Performing comprehensive risk and vulnerability assessments of existing sites and structures.

  • Climate-informed design criteria

    Developing adaptation strategies and design criteria to address extreme temperatures, drought, and rising flood risks.

  • Post-event damage assessment and repair design

    Inspecting structures after natural hazard events and engineering durable repair and mitigation solutions.

Industries

Commercial · Education · Residential · Sports & Recreation · Healthcare · Marine · Arts & Culture · Public Safety · Government

Projects

UCLA Nimoy Theater

Los Angeles, CA · Arts & Culture

UC Santa Cruz Kresge College Renewal

Santa Cruz, CA · Education

University of Washington Founders Hall

Seattle, WA · Education

Stanford C.J. Huang School of Medicine

Palo Alto, CA · Healthcare