Operating the country’s office, retail, and industrial buildings contributed $344.4 billion to U.S. GDP last year, supported 3.9 million jobs, and generated $609.9 billion in total output, according to a new study from the Building Owners and Managers Association International. The association that commissioned it ran on $11.1 million in revenue in 2024 with 34 employees.

Put the $344.4 billion next to other industries and the mismatch gets sharper. GDP from mining in the United States was running around $369.6 billion in the third quarter of 2025, and utilities around $353.5 billion. Agriculture was closer to $200.7 billion. The comparison is imperfect since those are chained 2017 dollars and the BOMA figure is current dollars, but the order of magnitude holds. The National Mining Association, representing an industry of roughly the same economic weight, reported revenue of $48.1 million in its fiscal 2024 filing across 277 member organizations. Mining funds its national voice at more than four times the scale.

The research covers only operating expenditures across 35.4 billion square feet, which came to $274.9 billion in 2025, or $7.78 per square foot. It excludes government buildings, excludes multifamily, excludes new construction, and excludes everything the tenants inside those buildings do. This is janitorial, engineering, utilities, insurance, management fees, and taxes. Housekeeping. And housekeeping alone produces direct spending larger than the annual GDP contribution of American agriculture.

The academic infrastructure is even thinner. The Urban Land Institute’s directory of real estate development and related education programs described programs at 54 universities, with another 56 listed, and found eight universities offering doctoral degrees in allied disciplines. That data is dated and the picture has improved since, but the structure has not changed. Real estate sits as a concentration inside business schools rather than as a discipline with its own faculty pipeline and its own research funding. Agriculture has land-grant universities, extension services, and federally funded research stations in nearly every state. Medicine, energy, and transportation each built a research apparatus sized to their economic weight. Commercial real estate did not.

Fragmentation explains part of it. The industry is split across owners, managers, brokers, lenders, and service providers, each with their own association and none with a mandate to speak for the whole. BOMA covers building operations. NAIOP covers development. The Mortgage Bankers Association covers lending. ULI covers land use. Nobody speaks for all of it, which means nobody funds research for all of it either, and it explains why a number this large has to be commissioned by a single trade group rather than tracked as a routine statistic.

The cost shows up in the places where decisions about buildings get made. Energy codes, property tax policy, zoning reform, building performance standards, and labor rules are written with far less industry-funded research behind them than an equivalent debate in agriculture or energy would attract. When the industry does show up, it shows up as several smaller groups with overlapping but not identical positions. That is a weak posture for a sector employing 3.9 million people.

The fix is likely not another association. It is fewer of them, or at least a real mechanism for the ones that exist to act together. Agriculture and energy did not win influence by having the most trade groups. They win it by building institutions large enough to fund research nobody else was going to fund, train the people who would later write the rules, and show up in Washington and in statehouses with one position instead of four. Commercial real estate has the economic weight to do the same and has never organized itself in a way that would maximize its impact. Whether that changes probably depends on whether owners start treating industry infrastructure as an investment. The current arrangement works fine right up until the moment somebody else is writing the rules about their buildings.