elevating building performance

engineering | analysis | training


At Zero Envy, our focus is elevating building performance by maximizing energy and water efficiency, occupant comfort, and return-on-investment through innovative thinking, integrative collaboration, and rigorous analysis from concept through operation.


Zero Envy Means

Zero Envy signifies that we help clients set, meet and exceed their projects’ net zero energy, water and carbon goals, while others miss out on the benefits and opportunities that “zero” can bring.


Zero Envy was founded by Greg Collins to provide technical analysis and consulting focused on achieving the net zero energy, water and carbon goals that have been adopted by many organizations. Greg’s project roles have ranged from HVAC design engineer, energy modeler, LEED consultant, building automation system (BAS) technician, MEP design project manager, MEP/Cx construction coordinator and more. These experiences have developed the knowledge and skills necessary to provide focused services that exceed project goals and save capital and operational costs.


What differentiates Zero Envy? We provide superior technical analysis and consulting focused on setting, meeting and exceeding your building performance goals and improving your bottom line. Other firms provide engineering design services while lacking the focus on real performance, or they provide sustainability consulting services while lacking the technical expertise to provide reliable analysis and integrated solutions. We partner well with those firms while providing the focused expertise where it’s needed.


for owners:

We understand that energy and sustainability are investments, so we work with owners and developers to set and reach performance goals in the most economical way, and that yield the best return-on-investment. We also help capture rebates, incentives and tax credits.


for architects:

We appreciate architectural design, and work with architects to create high performance projects while balancing other priorities. Our breadth of experience allows us to integrate well into any design team or delivery method.


for engineers:

We understand the priorities of the MEP engineer and help provide additional support as needed so they can best leverage their skillsets and deliver high-performance systems.


Our team has experience working in the following markets:

  • 1550 Euclid Office Development, Santa Monica, CA - Energy Modeling, Renewable Energy Analysis, Daylight Analysis

  • County of San Diego Dept. of Housing & Community Development, San Diego, CA – Net Zero Feasibility, Energy Modeling*

  • Marriott Courtyard and Residence Inn, Los Angeles, CA – Energy Modeling*

  • Coffee Bean Performance Analysis, Century City, CA – Energy Modeling, Computational Fluid Dynamics (CFD)*

  • SMCCCD Skyline College, Creative Arts & Social Sciences Building, San Bruno, CA - Energy Modeling, Daylight Analysis

  • SOCCCD Saddleback College Advanced Technology and Applied Sciences Building, Mission Viejo, CA - Energy Modeling

  • UC Merced 2020 Project, Merced, CA - Post-Occupancy Energy Consulting

  • UCLA Jules Stein Eye Institute, Westwood, CA – Energy Modeling, Daylighting Analysis*

  • UCLA Dodd Hall, Westwood, CA – ASHRAE Level 2 Energy Audit*

  • 245 Fair Oaks Net Zero Medical Office Building, S Pasadena, CA – Net Zero Feasibility, Energy Modeling, Daylight Analysis, Renewable Energy Analysis, Building Automation Design, M&V Plan*

  • MLK Center for Public Health, Los Angeles, CA – Energy Modeling*

  • Kaiser Permanente Antelope Valley Specialty MOB, Lancaster, CA - Energy Modeling*

  • Christ Cathedral – Daylight glare analysis & computational fluid dynamics*

  • San Antonio Convention Center – Energy modeling for LEED*

  • Long Beach Civic Center – Energy modeling, Renewable Energy Analysis

  • Governor George Deukmejian Courthouse, Long Beach, CA - Post-Occupancy Energy Consulting

  • Golden Empire Transit Bus Maintenance & Administration Facility, Bakersfield, CA – Net Zero Feasibility, Energy Modeling, Daylight Analysis*

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  • 1641 Lincoln, Santa Monica, CA - Energy Modeling, Renewable Energy Analysis

  • Casa Yonde Affordable Housing, Koreatown, Los Angeles, CA - Energy Modeling*

  • Metropolis Development, Los Angeles, CA – Energy Modeling*

* Denotes experience of team member while at other firm




We are part of the Cross Campus community and work from office locations in Santa Monica, Downtown Los Angeles and South Bay / El Segundo, California.

Main Office:
929 Colorado Ave
Santa Monica, CA 90401

Mailing Address:
1223 Wilshire Blvd., #327
Santa Monica, CA 90403

T: (310) 907-9490