Berkshire Hathaway Housing Bet: Why Berkshire Is Buying Homebuilders at 7% Mortgage Rates
10% OF LENNAR BerkshireHousing Buying builders at 7% rates Watch on YouTube, 17:37
The full breakdown runs 17:37. The written version below covers the numbers.
Berkshire Hathaway owns Clayton Homes, bought all of Taylor Morrison for $8.5 billion, and just crossed 10% of Lennar the day after Lennar reported its profit cut in half. With mortgage rates back above 7%, this is what Berkshire is betting on.
Taylor Morrison acquisition
Berkshire's stake in Lennar
Lennar Q3 2026 profit
Why builders win at 7%
About half of US mortgages carry rates of 4% or less, so existing owners don't sell. That leaves the builder as the only store open, with new homes a growing share of what is for sale.
Land-light Lennar
Lennar controls most of its homesites through options instead of owning the land, 82% at the end of 2024 versus 19% in 2013, which keeps the balance sheet light through a downturn.
Rate buydowns
Builders own mortgage companies, so they can buy down a buyer's rate and sell the house without cutting the list price. That costs margin, which is where Lennar's incentive spending shows up.
The number to watch
Sales incentives near 12% of revenue are the cost of keeping volume up at 7% rates. If rates fall, that number falls with them, and margins come back. That is the bet.
How mortgage rates are set is in How Do Mortgage Rates Work?.
Sources: Lennar Q3 2026 results (Sept 16, 2026) and 8-K; Berkshire Hathaway Q2 2026 10-Q; Berkshire and Taylor Morrison announcements; Millrose Properties filings; Freddie Mac PMMS; Census new residential sales. Nothing here is investment advice.