The Modular Housing Conundrum: Why Innovation Hasn’t Solved the Housing Crisis

Modular, factory-built homes have long been pitched as a fix for the housing shortage, thanks to their speed, cost savings, and more consistent build quality compared to site-built construction. But despite those advantages, modular building still makes up only a small slice of new housing, and the reasons why are more tangled than a single fix.

Part of the problem may be regulatory. Unlike most manufactured homes, which follow a single national HUD building code, modular homes must meet local building codes that vary place to place. Some in the industry argue that shifting toward performance-based codes, which judge a building by how well it performs rather than by a fixed checklist of construction methods, could make it easier for modular projects to scale up. But that is only part of the picture. Modular builders also face challenges around factory economics, marketing, and staying financially solvent, meaning code reform alone likely will not solve the bigger supply problem.

Local government resistance plays a role too. Industry voices point to NIMBYism, meaning opposition from residents and officials to new housing being built nearby, as a persistent barrier that shows up not just at town council meetings but throughout the permitting and approval process.

None of this changes anything for homeowners today, but it helps explain why factory-built homes have not become the faster, cheaper option many expected, and why the housing shortage remains a hard problem to solve.