“We paid 14% in the 1980s” isn’t a flex. It’s a clue — and not the one the people saying it think it is. The clue is that 1984 was the last year this country built houses at scale.

Stop blaming the rate. A first-time buyer in 2026 can’t afford a $429,000 house on $87,000 of income because we spent forty years making it illegal to build enough of them. Ted Jenkin, writing in Fox News under the headline “Buying a home seems impossible. Here’s what Boomers just don’t understand”, insists the affordability crisis is “the math” — a squeeze of price, income, down payment, and rate that has tightened in every direction at once. He is right that 14% mortgages are not the whole story. He is wrong that the rest of the story is inevitable.

He is right about the rate, and it deserves a proper concession rather than an eye-roll. The 30-year rate touched 13.9% in 1984. A buyer who financed the whole $79,900 at that rate paid roughly $925 a month in interest alone, against a median household income of $22,400 — nearly half the household income, in interest, before a dollar of principal. If you stop the tape there, rates were worse. Nobody arguing about housing should pretend otherwise.

But nobody should stop the tape there.

Jenkin’s own comparison goes like this: the price-to-income ratio climbed from 3.6 times to about 4.9 times, and the 20% down payment climbed from 71% of income to 98%. Both figures are true. Now look at the numbers underneath them, again his: the home price up 5.4 times, the median household income up 3.9 times, from $22,400 to $87,460. That 37% wedge is not income failing to keep up. It is the houses that never got built. The arithmetic is his. I have not introduced a figure of my own. His data is the indictment.

One honest concession inside that wedge: the product changed. The 1984 median new home ran about 1,500 square feet. The 2026 one runs about 2,400, with more bathrooms and a bigger garage, and adjusted for size the cost per square foot moved far less than the headline number did. That is true. It is also a supply argument wearing a costume. When the only thing the law lets you build on a quarter-acre lot is one single-family house, you build the biggest house the lot will carry. The regulation selects for size. And the buyer who can’t get in the door isn’t choosing between 1984’s small house and 2026’s large one. She is choosing between a $429,100 house and no house.

Here is the mechanism in plain terms. A first-time buyer earning the median income, putting 20% down on that $429,100 home, borrows about $343,000. At 7.28%, principal and interest alone is $2,350 a month. Add property tax, insurance, and maintenance and the all-in payment is north of $3,000. The same buyer, earning the same income, in a market with realistic supply, faces a $300,000 house: principal and interest near $2,050, all-in near $2,500, and a down payment of $60,000 instead of $86,000. The rate didn’t change. The income didn’t change. The price changed, because the city let more houses get built. That’s also why the down-payment complaint, however real it feels, is a derived variable: the same $86,000 is 98% of the income needed for a $429,000 house and 50% of the income needed for a $215,000 one. Shrink the denominator and the door fee shrinks with it.

Jenkin writes that buyers today are “squeezed from three directions at once” — prices relative to income, cash to get in the door, cost of borrowing — and adds, correctly and contemptuously, that the “stop buying $7 coffees” lecture is worthless. Coffee isn’t the problem. The math is. But the math he stops at is the part he likes. He is missing the fourth direction, the only one of the four we actually control: supply. Interest rates are set by the Fed chasing inflation, and the long-run equilibrium rate has nothing to do with how many apartments a city lets you build. Incomes track productivity and labor demand, slowly. Supply is a zoning map. It is a permitting clock. It is a parking minimum.

The 1984 builder competed with other builders. The 2026 builder competes with the zoning code. The National Association of Home Builders’ annual survey has for years put the cost and availability of land and local zoning and regulations at the top of the list of builder concerns, ahead of labor and ahead of materials. Each year of delay is a year of houses that don’t exist. The country isn’t running out of land. It’s running out of permission to use it.

In most American cities today you cannot legally build an apartment, a duplex, a townhouse, or a small cottage on the majority of residential lots. Single-family-only zoning covers most of the residential land in many large cities. Minimum lot sizes run to 7,000 or 10,000 square feet, and some towns mandate minimum house sizes too. Parking minimums require two cars’ worth of asphalt whether or not the street has transit. Design review boards can delay a project for years and deny it on aesthetic grounds. California can take years to approve a single-family permit; Texas can do it in months. The houses cost what the rulebook charges. In the early 1980s, builders were finishing well over a million homes a year, single-family and multifamily together, and per capita we now build at less than half that rate.

So stop asking a 30-year-old to develop a taste for 14% mortgages. Start asking your mayor why the parcel down the street is zoned for one house on a quarter acre when the road can carry four.

What gets built instead, then. Legalize duplexes, triplexes, fourplexes, courtyard apartments, and accessory units on every lot currently restricted to single-family homes. State preemption works: California did it, Washington did it, Oregon is doing it, Montana already had it, and in every case the cities fought and the states overrode them and the houses went up. In Minneapolis, Charlotte, Austin, and the California cities that legalized these forms, rents flattened and prices stabilized — the receipts exist, in the charts of the very states the “it can’t be done here” crowd keeps pointing at. Kill the parking minimums; a new apartment in a transit-served neighborhood should not have to ship two cars’ worth of asphalt to nowhere. Put a clock on permitting: if a city can’t approve a code-compliant project in six months, the project is approved by right, and Vancouver already runs a version of this. Fix the input costs — tariffs on lumber, steel, and aluminum raise the price of every new unit, and restrictive apprenticeship rules and prevailing-wage mandates on small residential projects raise the labor cost for no gain in quality; pay for them or stop pretending the sticker price is a mystery. And fund the supply side of affordable housing instead of only the demand side, because tenant-based vouchers chase the same fixed stock and bid up the rent on it, while project-based financing — including modular and manufactured housing, which lands at roughly half the per-door cost of subsidized new construction — actually adds the units that are missing.

Jenkin is right that the coffee lecture is contempt. He is wrong about where the problem sits. It isn’t on the buyer, and it isn’t in the interest rate. It’s on the city council, the state legislature, the permitting office, and the federal rulebook. The 14% mortgage is over. The single-family-only lot is the one that has to go. The arithmetic is real. The arithmetic is also a choice.

Build the houses.