About Us

Learn more about our passion for transforming the built environment

We are Optimal Building

25+ years of experience in High Performance Buildings

Optimal Building is transforming the buildings operations industry one building at a time. Founded in 2014, Optimal Building is a leading LEED energy auditor and energy efficiency consulting firm that has helped clients save hundreds of thousands of dollars on their operational costs. Backed by over 30 years of experience, we approach our clients' portfolios from an owner's perspective - first looking at "no-cost" improvements, then capital investments, to maximize their return on investment. See what we can do for you.

Our Numbers


Kilowatts Saved


Square Feet




cities in North America, and 4 in China

Assessment Performance Metrics

Financial Savings

  • Dollars Saved: Over 10.3 Million
  • Average Dollar Per SF Saved: $0.115

Environmental Savings

  • Greenhouse Gasses Eliminated: 97.6 Million lbs.
  • Average CO2 Saved Per sqft: 1.28lb/sqft/year
  • Average Kilowatts Per sqft Saved: 1.2 kWH

Assessment Stats

  • Average sqft of Buildings Assessed: 315,805 sqft
  • Largest Audit: Shanghai Twr - 4,090,300 sqft
  • Smallest Audit: Palo Alto Square - 23,347 sqft

Who We Are

Our Projects

Take a look at our case studies and some the incredible buildings we've assessed

Our Services

We are here to help you achieve your financial and ESG goals.

Contact Us

For more information about how we can assist, and our services, contact us today.

Business Target
More than just your regular investing firm.

Our Mission

We’re improving the built environment, one building at a time - and a highly skilled workforce, one person at a time.

Our Vision For The Future

A healthier, more human, built environment run by the next generation of high-performance building operators and technicians.

Financial Advice
More than just your regular investing firm.
Long Term Investments
More than just your regular investing firm.

Purpose driven

To transform the built environment & building operations industry, one building at a time.

california - leading in energy reduction

Optimal Building has conducted the majority of building assessments and energy efficiency audits in California. With over 50 million square feet of office space assessed, California remains the number one state where energy reduction opportunities exist. With "Energy And Water Efficiency Ordinances" in effect at major cities such as Los Angeles, San Francisco, San Diego, San Jose, Sacramento and other municipalities, California dominates in its efforts towards high perfromance building operations that result in meeting the states goal of Zero Net Energy use.

Carlos Santamaria



Quickly cultivate optimal processes and tactical architectures completely.


Quickly cultivate optimal processes and tactical architectures completely.


Quickly cultivate optimal processes and tactical architectures completely.


Quickly cultivate optimal processes and tactical architectures completely iterate.


Quickly cultivate optimal processes and tactical architectures completely iterate.


Quickly cultivate optimal processes and tactical architectures completely.

Meet Carlos Santamaria

A leading voice for energy efficiency

Carlos Santamaria is the Founder and Principal of Optimal Building. As the former Vice President of Engineering Services for Glenborough, LLC for eleven years, he strategically positioned the company as a leader in energy management and sustainability.

Mr. Santamaria has worked in commercial real estate for over 25 years focusing on energy efficiency, building operations, building upgrades, high performance buildings, construction and operational best practices. For over 20 years, Carlos has worked on some of the most successful "Deep Energy Retrofits" in the United States and abroad.​

Graduated from University of San Francisco - Executive MBA Degree, BA Degree in Business Mgt. at Saint Mary’s College, Completed the Harvard Business School Executive Education - Emerging Leaders Program, 2008. Earned the USGBC – LEED Accredited Professional Designation, LEED AP,  the California Real Estate Broker’s License #00878207 and the Building Owners & Managers Association (BOMA) RPA Designation.

Carlos Santamaria
Founder & Principal

Current Subject Matter Expert

Key Talent with the California Community Colleges Chancellors Office,  FM & Energy Initiatives. Current Board of Trustee w/ The International Facility Management Association (IFMA) Foundation.


Past Energy & Sustainability Chair

BOMA International and BOMA China. Recognition / Chair Emeritus - The Department of Energy - Better Buildings Alliance. Past Energy & Environment Chair BOMA International.


Carlos and I worked together at Glenborough for about 9 years. He is a real talent and brings a terrifice collaborative approach to projects and problem solving. He will be a tremendous resource for all property operational matters, especially mechanical and construction.

Craig Burton  |  Promark Partners