What the research says about school facilities and student outcomes

A school building shapes a student’s day before the first lesson begins. Decades of research show that facility conditions influence students in both directions: deteriorated, poorly maintained buildings are associated with more sick days, lower attendance, and weaker academic performance, while healthy, well-designed, and well-maintained schools support better attendance, engagement, and achievement.

These effects work through two pathways. Conditions act on students directly — classroom air quality, temperature, lighting, and noise affect health and concentration. They also act indirectly: research on New York City schools found that building conditions shape students’ perception of their school’s social climate, which in turn affects attendance and, ultimately, test scores.

The evidence is strongest for attendance, health, and academic achievement. Research on broader outcomes like social and emotional wellbeing is growing but thinner, and this page notes where the evidence is still developing.

Harvard’s Foundations for Student Success synthesizes more than 200 studies on how environmental exposures in school buildings — from ventilation to lighting to safety — influence student health, thinking, and performance.

Suggest Resources

Do you have a suggestion for a resource that should be included in our library?

Does investing in school facilities improve student achievement?

For years, researchers debated whether capital spending moves the needle on learning. The most comprehensive answer to date comes from national research analyzing more than 17,000 local bond measures across 29 states, presented in NCSI’s September 2025 webinar: when districts pass facility bonds, student test scores and local home values rise.

Two findings from this research matter most for practitioners. First, the category of investment matters. Spending on basic infrastructure — heating, ventilation, and air conditioning (HVAC), health and safety, plumbing, roofing — produces larger academic gains than other categories. Earlier studies that found no test-score effect from bond passage generally didn’t distinguish what the money bought; this California bond study that found no long-term benefit is a useful example of why this distinction matters. Second, effects are largest where needs are greatest: in low-income districts, districts serving more students of color, and districts with low prior capital spending.

An important distinction runs throughout this research: investment is the act of funding improvements, while conditions are what students actually experience day-to-day. Investment improves outcomes when it changes the conditions students learn in — which is why What Works and For Whom? and studies of Los Angeles, Ohio, California, and Maryland all focus on the link between what was funded and how conditions, attendance, and scores changed.

Building conditions, attendance, and student health

The clearest mechanism connecting facilities to learning runs through health and attendance. Students can’t learn from classrooms they aren’t in, and building conditions are a documented driver of missed school days. A 2026 study of district-wide renovations found that over one-third of respiratory-illness absences could be prevented through updated facilities, adequate ventilation, and cooler temperatures. Research in Upstate New York linked mold, humidity, poor ventilation, and vermin to higher absenteeism, and doctoral research featured in NCSI’s Q&A with Dr. Erika Eitland found that schools needing major repairs to roofs, building envelopes, and site features had significantly higher chronic absenteeism.

The conditions that matter most

Overall building condition matters on its own: Maryland’s first statewide facility study, Cracks in the Foundation, found students in the worst-condition facilities experience significantly higher absenteeism and lower test scores, particularly in socioeconomically disadvantaged communities. But certain facility components stand out in terms of their impact on occupants.

Poor classroom air quality — from dampness, mold, inadequate ventilation, or HVAC failures — raises asthma rates, increases absences, and lowers test scores. Better-ventilated classrooms score higher on math, reading, and science tests. Explore more resources on Indoor Air Quality.

Heat measurably inhibits learning: as the number of hot school days increases, learning outcomes decline, and taking an exam in 90°F heat lowers scores and reduces the likelihood of passing and graduating on time. Explore the Heating and Cooling topic page

Functioning building systems pay academic dividends: improving a school’s HVAC system over time reduces absences and suspensions and modestly increases math and reading scores. Learn more about why HVAC upgrades matter through the HVAC Change Lab.

Learning environments, behavior, and engagement

Facilities also shape how students behave, interact, and engage. The mediation research on New York City middle schools illustrates the chain: building condition shapes students’ perception of their school’s social climate, which affects attendance, which affects achievement. A school that looks cared for signals to students that they are cared for.

Design plays a role, too. The UK-based Clever Classrooms study found well-designed primary classrooms can improve learning progress by as much as 16 percent. Flexible learning spaces support interaction and behavioral engagement in secondary schools. The physical environment even influences social dynamics such as bullying and school climate. At the same time, research also suggests caution: classroom design should follow evidence, not architectural fads — trendy “innovative learning environments” don’t automatically improve learning.

Districts are applying these lessons. In Belvidere, Illinois, a district leader and NCSI Advisory Committee member profiled in NCSI’s blog paired student-centered redesign with a focus on wellness and belonging and saw chronic absenteeism drop 39 percent in a year.

Making the case for facility investments

For district and state leaders, the research above is more than context — it’s the material for board presentations, bond campaigns, and budget conversations.

NCSI’s September 2025 webinar pairs the research with practitioner perspectives on communicating the value of facility investments and building community trust.

Research-backed talking points leaders can use:

Hear from district and school leaders

Case Study/Exemplar

Stretched Podcast Eps. 12 and 13: The Lived Experience of Building Conditions, Parts 1 and 2

21st Century School Fund (21CSF), National Center on School Infrastructure (NCSI), National Council on School Facilities (NCSF), Sturtz & Company

In this 2-part conversation, David Sturtz, Mary Filardo, and Jerry Roseman discuss the importance of understanding the lived experiences of those in school environments. The conversations highlight the importance of blending quantitative data with qualitative insights from the community in driving health and safety improvements in school buildings.