YIMBY

What Is YIMBY?

YIMBY, short for “Yes In My Back Yard,” describes people and groups who actively support building more housing, including in their own neighborhoods. The term was coined as a direct reversal of NIMBY. YIMBYs typically argue that a housing shortage, driven largely by restrictive local rules, is a main cause of high rents and home prices.

The movement grew out of high-cost cities. YIMBY Action, one national advocacy group, says it started as a group advocating for housing in San Francisco and now has chapters across the country. It says it supports both market-rate and government-subsidized housing.

How the YIMBY Movement Works

Many YIMBY groups are organized as local, volunteer-driven chapters. Common activities include:

• Speaking at local hearings in favor of housing proposals
• Writing petitions and contacting legislators about housing bills
• Endorsing and campaigning for pro-housing candidates
• Pushing cities and states to loosen zoning and permitting rules

Typical policy goals include upzoning, ending single-family-only zoning, allowing accessory dwelling units and missing middle housing, reducing parking minimums and making code-compliant housing by right.

These ideas have reached Congress. The Yes In My Backyard Act (H.R. 4351) passed the House on March 2, 2020. It would have required certain Community Development Block Grant recipients to report on whether they had adopted policies such as allowing duplexes through fourplexes in single-family areas, reducing minimum lot sizes and cutting off-street parking requirements. It was referred to a Senate committee and did not become law in that Congress.

More recently, the 21st Century ROAD to Housing Act (Public Law 119-101) became law on July 11, 2026, after passing the Senate 85-5 and the House 358-32. Among many provisions, it directs HUD to adjust CDBG formula allocations for certain communities based on local housing growth, starting in fiscal year 2029. It also directs HUD to publish guidelines and best practices on state and local zoning by July 2029.

Criticisms and Limitations

Critics raise several objections:

• Affordability. New market-rate housing tends to be expensive. A 2023 study led by Urban Institute researchers found that reforms loosening density limits added supply mostly at the higher end of the rent range within three to nine years.
• Displacement. Some tenant advocates worry that new development in lower-income neighborhoods can speed up gentrification.
• Local control. Some residents and officials object to state laws that override local zoning decisions.

Supporters respond that adding homes eases competition for existing housing over time, and some YIMBY groups also support subsidized housing alongside zoning reform. How much new supply alone can do for the lowest-income renters remains an active debate.