Almost every industry got dramatically more productive over the last half-century. Homebuilding is the strange exception — and understanding why explains more about housing costs than any single material ever could.
Most industries learned to produce more output per worker over time. Homebuilding barely did.
A television, a car, a bag of groceries all cost less in real terms than they did fifty years ago, because the industries behind them got steadily more productive, decade after decade. Building houses went the other way.
This is one of the most striking and least-discussed facts in the economy, and it’s worth sitting with before reaching for any explanation.
The numbers
The McKinsey Global Institute, which has studied productivity across dozens of industries, found that global construction labor productivity grew about 1 percent a year over two decades — against 2.8 percent for the world economy and 3.6 percent for manufacturing. By their reckoning, manufacturing and agriculture became ten to fifteen times more productive since the 1950s. Construction stayed close to where it started.
The exact measurements differ from study to study, but the pattern is unusually consistent. The U.S. picture is stranger still. In a widely cited 2023 study, economists Austan Goolsbee and Chad Syverson traced American construction productivity from 1950 to 2020 and found that it didn’t just stall — it fell. Before about 1970, construction was more productive than the overall economy. Then the two lines split: the broader economy kept climbing, and construction drifted downward, to the point that by their measure a construction worker in 2020 produced less than one did in 1970. Over the same stretch, manufacturing productivity rose manyfold.
For an industry that builds something as essential as housing, that is a remarkable thing to be true.
An honest caveat about measurement
Productivity in construction is genuinely hard to measure, and serious people argue about the details. How you count output matters: housing units per worker tells a gloomier story than square footage per worker, and a growing share of construction labor now goes to renovations rather than new building, which muddies the comparison. Some of the apparent decline reflects how construction prices are adjusted for inflation rather than real lost output.
So the precise shape is debated. What isn’t debated is the direction. No serious analysis finds construction capturing the dramatic gains nearly every other sector did. The argument is over whether it stagnated or genuinely declined — not whether it kept pace. It didn’t.
It’s also fair to say construction didn’t stand still in every respect. Materials, engineering software, power equipment, safety systems, and project-coordination tools all improved a great deal. The puzzle is narrower and stranger than “nothing changed”: those gains never added up to the broad productivity acceleration manufacturing saw.
Why: the industry never industrialized
The simplest explanation is also the deepest. Manufacturing got more productive by doing the same thing, over and over, in a controlled place — standardized parts, repeated motions, measured processes, machines that improve year over year. Repetition creates a learning curve, and the learning curve creates productivity.
Construction did close to the opposite. Almost every building is a one-off, designed fresh, built outdoors on a new site, by a different and shifting set of subcontractors, under local rules that change from town to town. It is very hard to get good at building the same thing twice when you almost never build the same thing twice.
That single difference — repeatable factory production versus bespoke field production — sits underneath most of the specific causes.
The structural reasons
A few show up repeatedly in the research.
Fragmentation. Construction stayed an industry of small firms and layered subcontractors. Researchers have noted that construction firms actually got smaller beginning in the 1970s — the same moment productivity began to slide — even as manufacturing consolidated into large, efficient establishments. Coordinating many small specialized trades absorbs much of the gain any one of them might produce.
Bespoke production. With nearly every project unique, there is little to standardize and less to reuse. The “factory” is a new muddy lot each time, set up and torn down once.
Field labor. Most of the value is still created by hand, outdoors, subject to weather, site conditions, and human variation — the opposite of a controlled production line.
Local regulation. Codes and land-use rules vary widely by jurisdiction, so builders re-solve the same problems locally again and again. Studies have linked tighter local regulation to slower productivity growth.
Low digitization and investment. McKinsey ranks construction among the least digitized industries in the economy — in the United States, second to last. An industry that invests little in its process tends not to improve its process.
Why it shows up in your rent and your mortgage
This is not an academic curiosity. When an industry’s productivity stalls, its costs rise faster than the rest of the economy — and construction has been getting more expensive, by McKinsey’s estimate, on the order of one to three percent a year on top of general inflation. A meaningful share of the housing affordability problem isn’t land or interest rates or materials in isolation. It’s that we never got much better at building, the way we got better at almost everything else.
What the data suggests would change it
Here the analysts largely converge, and the answer is not exotic: to get manufacturing-like productivity, construction would have to look more like manufacturing. Standardized, repeatable designs. Components built off-site, in controlled conditions, to consistent tolerances. Less improvisation in the field. McKinsey argues that parts of the industry moving toward a production-system approach could unlock substantial productivity gains.
It’s worth being honest that this is an old idea with a long record of disappointment. Industrialized housing has been promised for nearly a century — from the enameled-steel Lustron homes that went bankrupt around 1950, to the federal “Operation Breakthrough” push of the early 1970s, to Katerra, the construction startup that raised billions and collapsed in 2021. The logic keeps being right and the execution keeps being hard, because the obstacles are not mainly technological. They are the same fragmentation, financing, and regulatory patchwork that held productivity down in the first place.
So this isn’t a story with an inevitable ending. It’s a structural problem that has resisted the obvious answer for fifty years.
The takeaway
Housing’s productivity problem is usually discussed as a materials problem or a technology problem. It is closer to a production-system problem — an industry that, for understandable reasons, never learned to do the same thing twice.
That’s the lens worth carrying into any conversation about how homes get cheaper, faster, or better. The parts of the industry that improve will likely be the parts that take on more of manufacturing’s discipline — repeatability, standardization, work moved into controlled settings — not because it’s fashionable, but because that is where productivity has always come from.
