US Housing & Mortgage Markets
Mortgage rates have climbed again on geopolitical pressures, purchase applications have gone soft, and existing home sales remain locked near 30-year lows — all while a tale of two rental markets plays out across the country. The spring selling season is delivering neither relief nor collapse: just stagnation at historically uncomfortable levels.
The Rate-Sales Trap: Brief Reprieve, Now Reversed
McBride's mid-May overview makes the bind explicit. Lower rates through 2025 and early 2026 did generate a pickup in purchase mortgage applications — but that demand never converted into closed sales. Existing home sales remain at roughly 2025 levels, which McBride notes are the lowest since 1995. Now even the application uptick has faded: rates have moved back up due to geopolitical pressures, and purchase apps are soft again. The lock-in effect continues to suppress listing activity, with months of supply above pre-pandemic levels — inventory is technically improving, but it's not translating into a functioning market.
The mechanism is worth stating plainly: sellers who locked in 3% mortgages aren't listing, so buyers face limited supply at prices their rate-exposed budgets can't support. More inventory on paper, fewer deals getting done in practice.
Price Appreciation Is Fading Fast
The Case-Shiller data McBride cites confirms what softer demand implies. The National Index rose just 0.7% year-over-year in February — and that's already stale data (Case-Shiller is a 3-month rolling average of closings, meaning February's print captures contracts signed as far back as October 2025). The Composite 10 held better at +1.5% YoY; the Composite 20 at +0.9% YoY.
Month-over-month, the National Index is up +0.09% (seasonally adjusted) — the 7th consecutive positive print, but each successive gain has been smaller than the last. The trend line is bending toward flat. McBride flags that more current data points to a similar reading in the March report. Real price appreciation, adjusted for inflation, is likely already negative at the national level.
Erdmann's Structural Frame: The 2008 Mortgage Break Explains Everything
While McBride tracks the cycle, Erdmann is working the longer arc. The immediate news hook is an NAR claim that the median age of first-time homebuyers jumped to 40 — a figure that, as Erdmann notes, appears to be a survey artifact rather than a real shift. Housing Wire's Logan Mohtashami shared data showing other sources still place the median firmly in the low 30s. The NAR number is likely failing to capture younger buyers in the survey.
But Erdmann uses the moment to restate his core thesis, which is worth understanding: the 2008 mortgage crackdown is the defining housing market event of the 21st century, and most analysis still misses its full implications. When mortgage access tightened dramatically post-2008, it didn't just make buying harder — it structurally raised rents. His logic: in markets where prices are anchored to construction costs, generous mortgage access raises the price-to-rent ratio on entry-level homes, which mathematically lowers rents (buyers bid up ownership prices, relieving rental pressure). Strip out that mortgage access, and rents rise — regressively, hitting lower-income households hardest.
The downstream effects are still accumulating. A 15+ million unit supply gap exists, Erdmann argues, and even the current building boom can't close it quickly enough. In the interim, markets clear through exclusion: would-be renters simply don't form households. This is why the homeownership rate has paradoxically risen even as affordability deteriorated — the denominator (renters) has shrunk, not because more people own, but because fewer people can afford to rent independently. Erdmann calls this an unnatural equilibrium: "If it wasn't caused by a public policy obstruction, more families would become homeowners when renting is a worse deal than it used to be."
Rental Markets Split Cleanly on Supply Lines
Zillow's Skylar Olsen provides the data that illustrates Erdmann's thesis in real time. The hottest rental markets for summer 2026 are precisely those that received the least new construction: Providence (#1), New York (#2), San Francisco (#3), Hartford (#4), Los Angeles (#5). The Sun Belt — Austin, Tampa, Phoenix — barely registers because it built its way out.
The numbers in the tight markets are striking. Providence rents are up 5% YoY, with a typical ask of $2,154/month and only 12.9% of property managers offering concessions — the lowest in the top 10, meaning renters have essentially no negotiating leverage. New York metro rents grew 4.5% YoY to a typical $3,406/month; within the five boroughs, the median asking rent hit $4,120, an all-time StreetEasy record, with Manhattan logging 26 consecutive months of declining inventory (also a record streak). San Francisco rents are up 5.4% YoY, driven by tech-sector demand colliding with constrained supply.
The contrast with Sun Belt markets is stark and policy-relevant: construction is the variable that determines whether renters have any power. Coastal and Northeastern metros didn't capture the 2024 building surge — and their tenants are now paying for it.
Synthesis
The mid-May picture is a market in tension between cycle and structure. Cyclically, rates are the swing factor — they briefly stimulated applications but didn't unlock the market, and now they've retreated again. Prices are decelerating toward flat, and sales volumes are historically depressed with no clear catalyst for recovery.
Structurally, Erdmann's framework is the right lens: the 2008 mortgage access shock created a disequilibrium that supply alone can't quickly correct, and its signature shows most clearly in rent growth — particularly in markets that haven't built. Olsen's rental data is effectively Erdmann's thesis rendered in live market prices. Until mortgage access normalizes or supply closes the gap significantly, the squeeze on renters in coastal and Northeastern markets will intensify, and the path to first-time homeownership will remain narrow — regardless of what age the typical buyer actually is.
TL;DR - Rates & Sales: Mortgage rates moved back up on geopolitical factors, killing a brief application recovery; existing home sales remain at their lowest since 1995 with no clear path higher. - Prices: Case-Shiller national appreciation has decelerated to just +0.7% YoY and monthly gains are shrinking — real prices are likely already flat to negative. - Structural break: Erdmann argues the 2008 mortgage crackdown — not just affordability or supply — is the root cause of elevated rents and suppressed household formation, with a 15+ million unit gap still to close. - Rental bifurcation: Coastal and Northeastern metros (Providence, NYC, SF) are seeing 5%+ rent growth and record-low vacancies; Sun Belt markets that built aggressively have largely avoided the squeeze.
Compiled from 3 sources · 3 items
- Bill McBride (1)
- Kevin Erdmann (1)
- Skylar Olsen (1)