CALGreen Tool

Easily comply with new CALGreen requirements with simple, automated software tool

Comply with Title 24 of the California Code of Regulations building standards with the CALGreen software tool from One Click LCA, the global leader in sustainable software for construction.

CALGreen code requirements

Hit your 10% carbon reduction requirements for CALGreen

Title 24 of the California Code of Regulations, CALGreen, is the USA's first mandatory green building standards code, in effect as of July 1, 2024. Calfornia non-residential buildings over 100,000 square-feet and schools over 50,000 square-feet will be required to comply with one of three pathways to reduce environmental impact:

  • Building Reuse: Reuse at least 45% of an existing structure and exterior
  • Performance: Complete a whole building life-cycle assessment (WBLCA) demonstrating 10% reduction in embodied carbon from a baseline model
  • Prescriptive: Document environmental product declarations (EPDs) for specified materials

Quickly calculate different CalGreen scenarios for early design decisions

  • Perform whole building life-cycle assessment with automated, easy-to-use software
  • Measure, reduce, and report on your carbon performance to meet the 10% reduction requirements
  • Access world's largest EPD database to comply with prescriptive path

New CALGreen Tool for designers

  • Easy comparison of different design options in early stage (Carbon Designer 3D)
  • Import BIM (Building information model) / BoM (Bill of materials) from your design or cost plan
  • Specify the model and add specifications / inputs on additional life cycle stages (construction site operations, refrigerant use, maintenance)
  • Create multiple design options of your proposed building model and try different material choices to see which model performs the best environmentally 
  • Choose a pathway to aim at, reused materials, comparative LCA against a baseline design, prescriptive approach
  • Download automated report for your project
  • Download all EPDs used in your project for additional documentation
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Comply with CALGreen today

Speak with a One Click LCA CALGreen expert to explore which software subscription plan is best for your construction project.