The housing shortage is larger than you think

Original Article ↗ Hacker News Discussion ↗

Commenters debate whether the U.S. and other rich countries face a true housing shortage or a misallocation of existing homes, pointing to vacant second homes, Airbnbs, and institutional investors on one side and restrictive zoning, NIMBY politics, and construction bottlenecks on the other. Many argue that underbuilding in high-demand cities is the dominant driver of high prices and homelessness, and that legalizing denser, multi-family housing would gradually make homes a worse investment and a better consumer good. Others counter that wealth inequality, speculative ownership, and treating housing as a financial asset are so entrenched that simply “building more” will not fix affordability without complementary policies like land value taxes, limits on multiple-home ownership, or stronger tenant protections.

Is there a Housing Shortage or Just Misallocation?

  • Some argue there is no true shortage: total vacant units exceed the number of homeless; problem is distribution and a “permanent underclass,” not supply.
  • Others respond that vacancies are mostly transitory (between tenants, for sale) or in places nobody wants to move; real shortages are in high-demand cities with low vacancy.
  • A recurring theme: “all real estate is local” — national vacancy stats hide severe local scarcity.

Zoning, NIMBYism, and Regulation

  • Large bloc claims the core problem is restrictive zoning, NIMBY opposition, and slow, unpredictable permitting.
  • Examples: years-long approval fights, parking and height rules blocking dense projects, code complexity making even small projects costly.
  • View: in “closed access” cities it is effectively illegal or prohibitively hard to build enough in the places people want to live.

Second Homes, Short-Term Rentals, and Investors

  • One camp blames individuals with multiple homes, Airbnbs, foreign buyers, and private equity for reducing effective supply and pushing up prices.
  • Proposals: ban or heavily tax corporate/PE ownership, progressively tax second/third homes, regulate STRs like hotels, land value taxes.
  • Skeptics say these actors own a small share of stock; they mostly rent units out, adding to rental supply. Core fix is still more construction.

Housing as Investment, Greed, and Politics

  • Debate over whether “greed” is the main driver vs rational response to incentives and policy.
  • Housing seen as a primary wealth vehicle; many homeowners politically resist anything that might lower prices, making pro-supply reforms hard.
  • Some argue housing should be a bad investment (stable prices) and not a wealth strategy.

“Just Build More” vs Limits and Side Effects

  • Strong YIMBY position: building more at any price point eventually lowers or flattens prices via filtering; evidence cited from local rent declines where building surged.
  • Counterarguments:
    • In superstar cities, new supply may induce more demand rather than lower prices.
    • Labor shortages, high materials costs, and past crashes constrain realistic build-out.

Density, Urban Form, and Quality of Life

  • Advocates: dense, mixed-use, transit-oriented housing is popular and under-supplied; Americans’ SFH preference is partly a legal artifact.
  • Critics: dense living degrades quality of life (noise, safety issues, crowds); many would choose a detached house with land if they could.