• LEED v5.0 Is Here: The Next Evolution in Sustainable Design

    The USGBC has officially approved LEED v5.0, marking a significant step forward in how sustainability is defined, measured, and achieved in the built environment. Centered on three core priorities: decarbonization, quality of life, and ecological conservation and restoration.  In this technical memo, we outline what’s new in LEED v5.0, how the framework has been reorganized, and what project teams should know about the transition timeline as LEED v4.1 and v5.0 run concurrently.

    Project registration for LEED v4.1 will close on June 30, 2026. We recommend registering projects that are scheduled to kick off next year before this date.

  • SB415 (AB98) Early-Stage Planning Tool

    California’s SB 415 (formerly AB 98) reshapes how logistics and warehouse developments are planned and designed near sensitive receptors, setting a new statewide baseline for smarter, more responsible industrial development. Effective January 1, 2026, the legislation introduces requirements for site planning, buffering, truck circulation, and building performance, with standards that vary by project size, zoning, and proximity to surrounding uses. Many projects will also be required to meet the new “21st Century” or “Tier 1 21st Century” logistics facility criteria, raising expectations for energy performance, electrification readiness, and long-term operational sustainability.

    To help our clients move forward with confidence, we created this summary chart as a practical, early-stage planning tool. The chart translates the complex regulatory framework into an easy-to-read, side-by-side comparison, highlighting the design considerations that most directly influence site feasibility, entitlement risk, and site plan design. Our team uses this tool to identify constraints early, unlock design opportunities, and deliver clear, buildable solutions tailored to each site and project goal.

  • Navigating the CBSCS 2025 code change

    Our team has reviewed the 2025 California Building Code (CBC) updates, which will become effective on January 1, 2026. Below is a high-level summary of the relevant changes for industrial buildings:

    • Seismic forces go up by 15% to 20%
    • Increased emergency egress illumination requirements 
    • Increased guardrail requirements at retaining walls 
    • Long term required bicycle parking requirements are doubled
    • EV chargers requirements are doubled
    • Case by case: 
      • More solar, battery storage, and updated photovoltaics & battery energy storage standards 
      • Increased requirements for indoor and outdoor storage of lithium-ion / lithium metal batteries and energy storage systems
      • More stringent wildfire and wildland interface provisions

    For more information see our detailed code update.

    We are tracking the code adoption schedule for our other major markets as well. For more information contact us at info@hparchs.com to discuss the code changes that apply to your project.

  • Emerging Trends in Industrial Skylights

    Incorporating natural light into warehouse and manufacturing facilities is a common design approach. Natural light improves working environments and reduces energy consumption. The difference between a building with and without skylights is… night and day. However, their integration into building design comes with both benefits and drawbacks, which can vary significantly depending on the geographical location and climate. This white paper illuminates the key considerations for installing skylights, with a specific focus on market differences between west coast projects specifically Arizona, Washington, and California. Additionally, we examine the alternative use of clerestory windows as a viable design option.

  • We Wrote the Book

    With over four decades of experience, HPA, Inc. has developed a wealth of profound expertise regarding successful industrial design and construction. We continue to maintain a strong level of technical expertise through extensive collaborations with Real Estate Development Companies and End Users. Often, you will find us engaging with these agencies through education on stock inventory products as well as manufacturing programs. Collaborating with the NAIOP in 2005, we authored the influential “Rules of Thumb for Distribution/Warehouse Facilities Design”, an authoritative compendium updated in 2020 to align with ongoing market trends and industry standards.

  • Cal Green LCA Choose Your Own Adventure

    Beginning July 2024, California is leading the nation with new standards to reduce the carbon footprint of large commercial buildings. At HPA, we’re ahead of the curve — guiding clients through these life cycle assessment requirements with practical, efficient strategies that keep projects compliant while supporting a more sustainable future.

  • Taller Tales

    As warehouse users demand more space and efficiency, new sprinkler technologies are making taller, higher-clear buildings possible. With expertise in emerging warehouse standards, HPA helps clients make informed decisions on building height, racking layouts, and structural design to achieve operational performance without compromising safety or cost