Marsman Consulting is a specialized energy consulting firm delivering comprehensive building performance solutions for high-performance design projects throughout California. Led by Hans Marsman, CEA and LEED AP, our firm brings 19 years of proven expertise in whole-building energy simulation and sustainability certification.
We partner with architects, developers, and building owners to transform ambitious sustainability goals into measurable results. Our approach combines technical precision with practical cost considerations, ensuring that every project achieves optimal energy performance while maximizing available financial incentives.
With more than 100 successful LEED certifications and multiple Zero Energy verified projects, we’ve established ourselves as trusted advisors for California’s most ambitious sustainable building initiatives. Our portfolio spans educational institutions, government facilities, commercial buildings, and multifamily developments, including projects for UCSD, SDSU, CSU San Marcos, and the County of San Diego.
We don’t just run energy models—we develop strategic pathways that align environmental performance with financial objectives. Our deep understanding of California Title 24 energy code, LEED certification requirements, utility incentive programs, and Zero Energy verification processes enables us to identify high-impact efficiency measures that deliver both immediate cost savings and long-term value.
When you work with Marsman Consulting, you gain a partner who understands that sustainability must make financial sense. We navigate complex certification requirements, secure maximum utility rebates, and ensure your project’s environmental commitments translate into operational success.
© 2025 Marsman Consulting. Engineering sustainable solutions for a better tomorrow.