Something structural is shifting at the top end of the US housing market, and it has less to do with interest rates or inventory than with who is buying, why they’re buying, and what they want when they get there. The picture that emerges from the latest research — spanning Sotheby’s International Realty, Coldwell Banker Global Luxury, and Christie’s International Real Estate — is of a market driven as much by legacy and lifestyle as by investment calculus.

Start with the money. Roughly $6 trillion changed hands globally in 2025 through inheritance alone, generating a wave of newly capitalised buyers who are moving quickly and often paying cash. Sotheby’s 2026 Luxury Outlook identifies this wealth transfer as one of the most significant demand drivers in the current cycle, skewing the buyer profile younger and reinforcing real estate’s role as a tangible place to store multi-generational wealth rather than a speculative vehicle.

The Coldwell Banker Global Luxury 2026 Trend Report adds texture to this picture. Gen X and millennials are on course to inherit $4.6 trillion in global real estate wealth over the next decade, with the United States expected to capture 52 per cent of that transfer. Since 2020, global wealth among high-net-worth individuals has grown nearly 40 per cent, including a 29.4 per cent rise in real estate holdings specifically. The numbers suggest that luxury property’s role as a long-term wealth anchor isn’t just holding — it’s deepening.

That money is flowing into a very specific type of property right now. Nearly one in five US purchases is made by buyers planning to live with relatives beyond their immediate family, according to the Sotheby’s report, with grandparents frequently helping to cover costs. Millennials and Gen Xers are driving the multigenerational trend, searching for homes designed around both young children and aging parents simultaneously — a demographic reality that the broader housing market has been slow to acknowledge.

“These little details create a sense of equals across multiple generations that have chosen to purchase a property together,” said Bradley Nelson, Sotheby’s chief marketing officer. Architects are responding by building multiple primary bedroom suites with private bathrooms, small office areas, and sitting rooms — essentially turning single-family homes into compounds that provide privacy without separation. In Miami and New York particularly, demand for adjoining apartments that can be reconfigured as multigenerational spaces is reshaping what developers put on the market.

Privacy is the other dominant theme, and its rise is striking given that the threat perception driving it is mostly disconnected from statistical reality. Home burglaries in the US have fallen 68 per cent over the past three decades, according to FBI data. That hasn’t stopped global spending on smart-home security from trending toward $39 billion by 2029. Wealthy buyers are installing advanced security infrastructure at premium prices to address fears that crime data doesn’t fully support — a pattern that tells you something about how anxiety, not just utility, drives luxury purchasing decisions.

New York, meanwhile, continues to defy the predictions of its critics. Luxury apartment sales climbed after the election of Mayor Zohran Mamdani — not the outcome many observers anticipated given his political profile. Nelson, who tracks the city closely, points to JPMorgan Chase’s $4 billion new office as evidence of the “seismic investment” in commercial real estate that anchors confidence in the residential market. A West Village penthouse is under contract for $87.5 million, expected to set a record for Lower Manhattan when it closes around 2027. “I’m a big believer to never bet against New York,” Nelson says.

The market isn’t uniform in its strength, however. Christie’s International Real Estate, which launched its Prime Sentiment Index this year, recorded a score of 14.4 for 2026 — down from 15.6 in 2025, reflecting some cooling in buyer demand. Gavin Swartzman, the firm’s president, frames this as normalisation rather than decline. “Demand is normalizing, which we see as evidence of a more balanced market,” he said, noting that well-priced properties are still moving in virtually every market they track.

The entry point for what qualifies as luxury nationally has climbed to around $1.3 million, and in cities like Los Angeles and New York it rises considerably higher. The National Association of Realtors projects a 4 per cent median price increase in 2026 overall, with mortgage rates potentially moderating toward 6 per cent — conditions that could bring more buyers off the sidelines at the lower end of the luxury tier.

Mark Zandi of Moody’s Analytics draws a useful distinction between segments: “At the lower end of the luxury market spectrum, homebuyers are a little more sensitive to their overall net worth and the stock market.” That sensitivity creates a fault line within luxury itself — between buyers who are genuinely immune to macro conditions and those who are just affluent enough to be watching their portfolios nervously. The upper tier is doing fine; the middle is watching and waiting.

What the aggregate data suggests is that American luxury real estate in 2026 functions less like a single market and more like several markets stacked together, unified by high prices but divided by motivation, financing, and geography. The multigenerational buyer wants something different from the privacy-obsessed celebrity, who wants something different from the inheritor parking new wealth in a tangible asset. Each of those buyers is active, and together they’re keeping the market firmly in forward motion.