After more than a decade working across commissioning, energy audits, MEP assessments, and building performance projects in Massachusetts and beyond, I have seen the same issues surface on project after project: a building designed to meet aggressive energy targets that falls short once occupied.
It is rarely a design failure. It is almost always a verification failure.
That distinction has always mattered. It directly affects NOI, asset value, and regulatory exposure.
The Performance Gap Is a Direct Hit to Operating Expenses
The energy performance gap, the difference between what a building was modeled to consume and what it actually uses in operation, is well-documented and expensive. According to the International Partnership for Energy Efficiency Cooperation, the performance gap is not a result of codes or regulations in any single jurisdiction — it is a systemic problem globally. On average, buildings consume 25% more energy in operation than design models predict, and in some cases actual consumption runs as high as 250% above estimates.
For developers and owners, that gap hits operating expenses directly and compresses NOI from day one. The U.S. Department of Energy estimates that 30% of the energy used in commercial buildings is wasted — making it a large controllable line item on any operating statement. A building running 25% above its projected energy baseline is not a sustainability problem in isolation. It is a cash flow problem, a leasing problem, and increasingly, a regulatory problem.
A peer-reviewed study of a multi-purpose commercial building found actual energy consumption in the first year of operation ran 60% above model predictions, with the primary driver being building systems installed and operated differently than specified. Not a design failure.
The root causes are familiar to anyone who has spent time in the field: air barrier transitions between trades interpreted differently than intended, mechanical systems modified to accommodate site conditions, enclosure assemblies that looked right on paper and performed differently in practice. Without structured verification throughout construction, the gap between what gets specified and what gets built is often significant, and it does not show up until the first utility bills arrive.
Massachusetts Has Raised the Stakes Considerably
Massachusetts has adopted some of the most aggressive building energy requirements in the country. As of 2025, over 270 cities and towns have adopted the Stretch Energy Code, and an additional 59 have adopted the opt-in Specialized Code, designed to align new construction with the state’s net-zero targets by 2050.
Boston adds another layer. BERDO, the Building Emissions Reduction and Disclosure Ordinance, establishes operational emissions limits for existing buildings that sit entirely separate from energy code compliance. Both apply. Both carry financial consequences for owners not actively managing performance against them.
Massachusetts also requires large buildings to track and report energy consumption under the Large Building Energy Reporting policy, with the covered buildings list established and compliance timelines in effect.
The direction of travel is not ambiguous. Massachusetts is moving from design compliance toward demonstrated operational performance, and the reporting infrastructure to enforce that shift is already built. For developers underwriting new projects or owners managing existing assets, the risk is straightforward: a building designed to comply but never independently verified is a liability that compounds over time.
Why PHIUS Is the Right Reference Point
PHIUS is the only passive building certification program that pairs rigorous design review with mandatory on-site quality assurance and performance testing throughout construction, not just at final inspection. The Northeast has become one of the most active markets for large-scale passive house projects, driven by exactly the kind of regulatory environment Massachusetts has created, and demand for qualified verifiers is growing accordingly.
For Massachusetts developers, PHIUS carries direct financial weight. The Massachusetts Department of Housing and Community Development includes PHIUS in its Qualified Allocation Plan, making certification a meaningful driver of Low Income Housing Tax Credit awards. Mass Save rebates are also tied to PHIUS compliance pathways.
The more important point for owners is this: the discipline PHIUS requires, enclosure performance verification, airtightness testing, coordinated commissioning, and independent third-party oversight from design through construction closeout, is what every high-performance building should have regardless of whether certification is the goal. PHIUS makes that discipline contractually non-negotiable. For owners protecting NOI projections and avoiding first-year operational surprises, that structure has real value on any project.
What Verification Actually Protects
The Columbia University Forum Building illustrates what that looks like in practice. EBI’s commissioning scope ran from design through post-occupancy review on a new campus building with systems connected to the university’s central energy plant. By the acceptance phase, EBI documented and resolved 147 substantial issues before they became occupancy problems. The project closed on time and on budget. That outcome is not incidental to the commissioning process. It is the point of it.
The first year in a building without that structure often looks very different. Mechanical systems modified in the field and never retested. Air balancing signed off on paper but never functionally verified. Controls integrations that worked in isolation and failed under real operating conditions. These are not hypothetical scenarios. They are what happens when construction complexity is not actively managed through independent verification.
Building enclosure performance is where many of these issues originate. Thermal bridging, air leakage at transition details, and enclosure assemblies installed differently than specified are among the most common contributors to the performance gap. None of them are visible after the building closes. All of them affect operating costs from the first month of occupancy.
The financial case extends beyond new construction. When EBI worked with a Colorado CRE investor facing new building performance standards across a five-property portfolio, strategic benchmarking and compliance analysis returned $300K in savings on a $19,500 engagement. The lesson is the same whether the context is new construction or existing assets: performance problems caught early, with the right expertise, cost a fraction of what they cost once they are embedded or regulatory.
For Massachusetts developers and owners, the math is direct. Verification protects the NOI you underwrote, reduces first-year operational surprises, and in a regulatory environment where BERDO, LBER, and the Stretch Code are all tightening, reduces the exposure that comes from assuming a building performs the way it was designed to.
The Shift Already Underway
The projects that will perform best under Massachusetts’ current and future regulatory framework are not necessarily those with the most ambitious sustainability goals. They are the ones where design intent was tracked, tested, and verified all the way through construction.
Massachusetts is steadily moving from design compliance toward demonstrated performance. The reporting requirements, emissions limits, and enforcement mechanisms are already taking shape. For owners and developers, the financial consequences of getting building performance wrong are becoming increasingly measurable and increasingly difficult to ignore.
If you are developing or acquiring assets in Massachusetts and want to understand how verification fits into your project delivery or asset management strategy, reach out to EBI’s energy and sustainability team.
Frequently Asked Questions
What is the building energy performance gap?
The performance gap is the difference between a building’s predicted energy use during design modeling and its actual consumption in operation. Research tracked by the International Energy Agency shows buildings consume 25% more on average than modeled, with some reaching 250% above estimates. For owners, that gap shows up directly in operating expenses and compressed NOI.
Which Massachusetts municipalities are subject to Stretch Code or Specialized Code?
Over 270 municipalities have adopted the Stretch Code and 59 have adopted the Specialized Code as of 2025. The Massachusetts DOER maintains an interactive compliance map by municipality.
What is a PHIUS Verifier and what do they do on a project?
A PHIUS Certified Verifier provides independent on-site quality assurance and performance testing throughout construction on projects pursuing PHIUS certification.
How does PHIUS relate to Massachusetts energy code compliance?
PHIUS certification is an accepted compliance pathway under both the Massachusetts Stretch Code and Specialized Code for residential and commercial projects. It also unlocks Mass Save rebates and strengthens LIHTC applications through the state’s Qualified Allocation Plan.
What is BERDO and does it apply to my building?
BERDO is Boston’s Building Emissions Reduction and Disclosure Ordinance, which sets operational emissions limits for existing buildings independent of energy code requirements. EBI’s BERDO compliance overview covers what property owners need to know.
When should verification begin on a project?
During design development, not at construction closeout. The highest value comes from verification that starts before construction documents are finalized and continues through performance testing at substantial completion.
What services does EBI provide for building performance in Massachusetts?
Commissioning, building enclosure consulting, energy code compliance, energy audits, BERDO and LBER compliance support, and PHIUS verification. EBI works across the full project lifecycle from pre-acquisition through post-occupancy.
MEET THE AUTHOR
Phil Winterland
Phil Winterland is Energy and Sustainability Group Manager at EBI Consulting, with nearly 20 years of experience in energy consulting, commissioning, MEP assessments, and building performance across commercial, institutional, healthcare, and government properties. He is a registered professional mechanical engineer working with clients on their path to net zero.