Warren Buffett's Berkshire Hathaway and Zillow say mortgage rates can't fall enough for Americans to afford a home | Fortune

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  House and Home on Mon, Oct 27th, 2025 by Fortune

The Numbers Behind the Conversation

Zillow’s research division supplied the bulk of the data that frames the discussion. The company’s latest affordability index, which compares the average monthly housing payment to the median household income, sits at roughly 45 percent. In practical terms, that means a typical buyer would need to dedicate almost half of their monthly earnings just to cover mortgage and property taxes—an unsustainable proportion for most households.

The same data show that the average 30‑year fixed‑rate mortgage rate in 2025 has crept up to 7.1 percent, a steep increase from the 3‑4 percent range that prevailed during the low‑rate period of the late 2010s and early 2020s. For a $400,000 purchase price, the monthly payment on a 7.1 percent mortgage is about $2,800, assuming a 20 percent down payment. By comparison, the same loan at 3 percent would produce a payment of just $1,680. The rise in rates, Buffett noted, is a double‑edged sword: it keeps borrowing costs manageable for banks, but it erodes the purchasing power of homebuyers, especially those who are first‑time buyers or live in high‑cost metros.

Zillow also noted that median home prices in the United States have increased by almost 30 percent over the past five years, outpacing median household income growth by a larger margin. This trend is especially pronounced in metropolitan corridors such as the San Francisco Bay Area, New York City, and Boston, where zoning restrictions and limited land supply keep prices high. In these markets, affordability ratios hover near 70 percent, meaning buyers must pay more than a third of their monthly income for housing.

Buffett’s Perspective on the Crisis

Buffett’s comments are framed by his typical long‑term investment mindset. He acknowledged that the housing market is one of the most essential pillars of the U.S. economy, but he cautioned against treating it as a pure financial play. “We’ve seen housing prices rise because of a supply‑side constraint, not because of demand alone,” he said. “That creates a structural problem that no interest‑rate policy can solve on its own.”

The Berkshire CEO also highlighted the role of mortgage servicers and real‑estate investment trusts (REITs) in the broader ecosystem. “We own a variety of REITs that generate steady dividend income,” Buffett noted, referencing Berkshire’s stakes in entities that manage apartment complexes, office buildings and other income‑producing properties. “Those businesses are very sensitive to the cost of capital, so when rates climb, their profitability can be squeezed.”

Buffett’s remarks came at a time when the Federal Reserve has been steadily raising the federal funds rate to combat inflation. The central bank’s latest cycle has nudged the rate up by 1.5 percent over the past 18 months, a move that has directly translated into higher mortgage rates. Buffett called for a more nuanced approach: “The market is reacting to the data, but policy makers need to understand the longer‑term implications for the affordability of homes. A single‑handed rate hike is not a solution to a structural supply shortage.”

The Real‑Estate Landscape at Berkshire Hathaway

Berkshire’s real‑estate portfolio—though not as large as its equity and insurance holdings—remains significant. The conglomerate’s holdings in the real‑estate sector include the real‑estate portfolio of Berkshire Hathaway HomeServices, a leading national real‑estate brokerage, and several direct property investments in commercial assets. While the firm’s public filings do not disclose a sizeable stake in Zillow, Buffett’s interest in real‑estate analytics and his discussions with Zillow executives suggest that he is keenly aware of the data‑driven narrative that Zillow builds around housing affordability.

In a separate interview, Buffett emphasized the importance of diversification in real‑estate holdings. “We do not put all of our capital into a single type of property or a single geographic region,” he explained. “That spread is what protects the company against local downturns and policy shocks.” This stance reflects Berkshire’s broader strategy of investing in “durable businesses” that can weather macroeconomic volatility.

Policy Options on the Table

The article points out that solving America’s housing affordability crisis will require coordinated policy interventions. Several solutions are on the table:

1. Zoning Reform – Encouraging municipalities to relax height and density restrictions could free up land for new development, easing supply constraints.

2. Targeted Subsidies – Expanding the Low Income Housing Tax Credit (LIHTC) and other incentive programs can lower construction costs for affordable units.

3. Mortgage Credit Expansion – Federal initiatives to expand affordable‑home‑loan programs, such as the Community Development Financial Institutions (CDFI) fund, could bring more lenders into play.

4. Interest‑Rate Adjustments – While Buffett warns that a blanket rate cut is unlikely to address affordability alone, a selective easing in the rates for specific mortgage products could provide relief for first‑time buyers.

5. Infrastructure Investment – Improving transportation and public services in peripheral regions can make those areas more attractive, spreading demand and helping bring prices down in the long run.

Bottom Line: A Call for Balanced Action

Buffett’s analysis underscores the multifaceted nature of America’s housing affordability crisis. The rising mortgage rates, driven by the Federal Reserve’s inflation‑fighting agenda, have increased the monthly burden on homebuyers. Zillow’s data demonstrates that this increase is occurring against a backdrop of rapidly rising home prices, especially in the high‑cost metros. In this context, Berkshire Hathaway’s real‑estate strategy of diversified, income‑generating assets offers a degree of resilience, but it also highlights the broader economic sensitivity of the housing market to rate changes.

The article ultimately frames the problem as one that cannot be solved by monetary policy alone. Buffett’s emphasis on supply constraints and structural reforms suggests that meaningful progress will require a mix of fiscal stimulus, regulatory change, and innovative financing mechanisms. Whether the Federal Reserve will alter its trajectory or whether lawmakers will pass comprehensive housing reforms remains to be seen. What is clear, however, is that the affordability debate—once a niche issue for real‑estate investors—has become a central narrative in the broader conversation about America’s economic health.