Insufficiently Affordable: Public Opinion About Housing Affordability

Introduction

Opinion about housing affordability is often misunderstood as simple NIMBYism or racial exclusion, but new research suggests a more complex economic and moral driver is at play. As the United States grapples with a severe housing crisis, where over 22 million renter households spent more than 30% of their income on rent in 2023, public resistance to new development remains a significant barrier. However, a groundbreaking study titled "Insufficiently Affordable: Public Opinion About Housing Affordability" by Tali Mendelberg, Gustavo Novoa, and Adrian Pietrzak challenges conventional wisdom.
Opinion about housing affordability is often misunderstood as simple NIMBYism or racial exclusion, but new research suggests a more complex economic and moral driver is at play.The authors argue that opposition is not necessarily against affordable housing itself, but rather against policies perceived as "insufficiently affordable"—those that benefit wealthy developers and landlords at the expense of low-income residents. This article provides a comprehensive analysis of these findings, exploring how opinion about housing affordability is shaped by class attitudes, developer types, and policy structures.

The Theory of Insufficient Affordability

To understand the current political landscape, one must first examine why traditional explanations for housing opposition fall short. Historically, scholars have attributed resistance to two main factors: self-interest (such as fear of declining property values or increased congestion) and exclusionary attitudes (racial or class-based prejudice against poor neighbors). While these factors remain relevant, they do not fully explain the widespread support for lower home prices coupled with opposition to specific housing projects.
The study introduces the theory of "insufficient affordability." This theory posits that many Americans believe current affordable housing programs are unfairly upwardly redistributive. In other words, the public perceives that these policies provide undue financial benefits to affluent residents, for-profit developers, and investors, while failing to produce enough units for those who need them most. When citizens evaluate a proposal, their opinion about housing affordability is heavily influenced by whether they believe the project serves the poor or enriches the wealthy.
This perspective is crucial because it shifts the narrative from "people don’t want change" to "people want different change." The research indicates that when housing policies are designed to bypass private profit and strictly serve low-income populations, public support increases significantly. Thus, understanding opinion about housing affordability requires looking beyond mere density or location to the underlying economic mechanics of who benefits.

Methodology and Key Findings

The researchers employed a rigorous experimental design to isolate the variables driving public sentiment. They conducted three large-scale surveys between March and August 2025, targeting respondents in the 30 largest Combined Statistical Areas (CSAs) in the United States. By focusing on high-density urban areas, the study ensures relevance to regions where the housing crisis is most acute.
The methodology involved presenting respondents with detailed building vignettes. These vignettes varied key attributes: the income level of qualifying tenants (based on Area Median Income, or AMI), the percentage of units set aside as affordable, the type of developer (for-profit vs. non-profit), and the presence of rent controls. This precise manipulation allowed the authors to measure how specific policy features impact opinion about housing affordability.

Support for Deeply Affordable Housing

One of the most striking findings is the overwhelming support for housing targeted at the poorest Americans. Respondents showed the highest level of support for buildings reserved for households earning less than 30% of the AMI. Support for these deeply affordable units was 24 to 26 percentage points higher than for market-rate buildings.
Even among high-income homeowners, who are often stereotyped as the primary opponents of such developments, support remained robust for projects serving the lowest income brackets.
When asked to design their own ideal building, respondents allocated an average of 86% of units to affordable categories, with the largest share going to the poorest group. This stands in stark contrast to typical Inclusionary Housing (IH) programs, which often require only about 10% of units to be set aside at moderate income levels.
This discrepancy highlights a gap between public desire and policy reality, suggesting that current opinion about housing affordability is more progressive than existing legislation reflects.

The Role of Symbolic Class Attitudes

The study further reveals that symbolic class attitudes are stronger predictors of support than self-interest. Using "feeling thermometers" to gauge respondents' warmth toward low-income versus high-income groups, the authors found that positive feelings toward the poor correlated strongly with support for affordable housing. Conversely, negative sentiments toward the wealthy and real estate actors drove opposition.
This finding is pivotal for policymakers. It suggests that framing housing debates around fairness and class equity may be more effective than appealing to narrow self-interest. When people perceive a policy as helping the needy rather than lining the pockets of the rich, their opinion about housing affordability becomes markedly more positive. Notably, these class-based attitudes persisted even after controlling for racial resentment, indicating that economic fairness is a distinct and powerful motivator.

How Policy Design Shapes Opinion About Housing Affordability

The structure of housing policies plays a critical role in shaping public perception. The study examined how different actors and financial mechanisms influence opinion about housing affordability, revealing that the "who" and "how" of development matter as much as the "what."

For-Profit Developers vs. Non-Profits

A significant portion of public resistance is directed at for-profit developers. The research found that support for affordable housing drops substantially—by approximately 20 percentage points—when projects are built and financed by for-profit entities without rent controls.
Respondents perceive for-profit developers as prioritizing shareholder returns over community needs. In contrast, projects managed by non-profit organizations or local governments, particularly those with rent stabilization measures, garnered much higher support.
This backlash extends to policy proposals as well. When respondents were asked about zoning reforms or tax incentives, support fell sharply if the benefits were directed toward for-profit developers. This suggests that the public is skeptical of market-based solutions that rely on private profit motives. To align with public opinion about housing affordability, policies may need to reduce the role of for-profit actors and increase direct public or non-profit involvement.

Tax Increases and Rent Pass-Throughs

Another critical factor is the funding mechanism. The study tested a hypothetical ballot initiative to fund affordable housing through property tax increases. Unsurprisingly, support decreased when taxes were raised. However, the drop-in support was more than double when landlords were allowed to pass these tax increases onto renters.
Interestingly, this opposition was not limited to renters; homeowners also opposed policies that allowed rent pass-throughs. This indicates a broader moral objection to policies that enable wealthy landlords to profit at the expense of tenants.
Even when faced with a tax increase, support remained above the midpoint if the funds were used by non-profits and rent hikes were restricted. This nuance is essential for understanding opinion about housing affordability: the public is willing to bear costs if they believe the burden is shared fairly and does not exacerbate inequality.

Implications for Housing Policy and Future Research

The findings of this study have profound implications for housing policy in the United States and potentially globally. Current Inclusionary Housing programs, which often rely on tax breaks for developers to build a small fraction of affordable units, may be generating opposition precisely because they are perceived as insufficiently affordable. By allowing developers to charge market rates for the majority of units and offering generous incentives, these policies appear to subsidize wealth rather than alleviate poverty.
To bridge the gap between public desire and policy outcomes, lawmakers should consider:
  1. Increasing Affordability Targets: Policies should require higher percentages of units for the lowest income brackets (<30% AMI) rather than moderate-income groups.
  2. Prioritizing Non-Profit Development: Shifting resources toward non-profit and government-led development can mitigate backlash against private profiteering.
  3. Implementing Rent Controls: Restricting landlords’ ability to pass costs to tenants is crucial for maintaining public support, even when tax increases are necessary.
These recommendations align with the prevailing opinion about housing affordability, which favors deep affordability and equitable distribution of resources. Furthermore, the study highlights the need for more precise definitions in future research.
Vague terms like "affordable housing" can lead to mixed results in polling, as respondents may interpret them differently. By specifying income levels and developer types, researchers can better capture the nuances of public sentiment.

Conclusion

The study "Insufficiently Affordable" offers a vital correction to the narrative surrounding housing development. It demonstrates that Americans are not inherently opposed to dense, affordable housing; rather, they oppose policies that they perceive as unfair transfers of wealth to the already affluent. By focusing on symbolic class attitudes and the specific design of housing programs, the authors provide a roadmap for building broader political consensus.
For researchers, students, and housing professionals, this document underscores the importance of precision in both policy design and public communication. Understanding opinion about housing affordability requires recognizing that the public is highly attuned to issues of fairness and redistribution.
As cities continue to struggle with rising costs and homelessness, aligning policy with these deep-seated values will be essential for creating sustainable and supported housing solutions. The evidence is clear: when housing is truly affordable and free from exploitative profit motives, the public is ready to support it.