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YIMBY is an acronym for "yes, in my back yard", a pro-development movement in contrast and opposition to the NIMBY ("not in my back yard") phenomenon.[1][2] The YIMBY position supports increasing the supply of housing within cities where housing costs have escalated to unaffordable levels.[3] YIMBYs often seek rezoning that would allow denser housing to be produced or the repurposing of obsolete buildings, such as malls, into housing.[4][5][6] YIMBYs may also support public-interest projects like clean energy or alternative transport.[7][8][9]

The YIMBY movement has supporters across the political spectrum including left-leaning adherents who believe housing production is a social justice issue and free-market libertarian proponents who think the supply of housing should not be regulated by the government. YIMBYs argue cities can be made increasingly affordable and accessible by building more infill housing,[10][11][12]:1 and that greenhouse gas emissions will be reduced by denser cities.[13]


A 1993 essay published in the Journal of the American Planning Association entitled "Planners' Alchemy, Transforming NIMBY to YIMBY: Rethinking NIMBY" used 'YIMBY' in general reference to development, not only housing development.[14]

The pro-housing YIMBY position emerged in regions experiencing unaffordable housing prices. The Guardian said this movement began in the San Francisco bay area in the 2010s due to high housing costs created as a result of the local technology industry adding many more jobs to the region than the number of housing units constructed in the same time span.[15]

Political debate[edit]

Equity groups in California have frequently opposed the movement, pointing to its Silicon Valley funding[16] and younger, whiter constituency.[17] At the same time, affordable-housing developers and environmental groups have endorsed YIMBY policies,[18] while suburban homeowners have opposed changes to single-family zoning.[19][20]

YIMBYs advocate for market-rate housing and say this is essential for the viability of its development, which would create housing supply that would lower prices by satisfying demand.[21] Those opposed say adding market-rate housing rather than subsidized and means-tested affordable housing in a high-demand region can worsen housing affordability for low and middle-income earners through the "sorting" process, whereby high-earning newcomers inhabit the newly built housing.[22][23] YIMBYs say market-rate development (including luxury development) will eventually result in affordable housing since existing wealthy residents will occupy these new units by vacating less desirable housing in a process called "filtering."[24]

YIMBYs say their anti-development counterparts obstruct development in defense of the status quo from which they alone benefit.[25] Opponents have described YIMBY organizations as "self-interested political calculations" by special interests.[26] YIMBYs and their opposition both cite concerns about the environment, quality of life, and social justice as motivating factors.[27][28][29][30] Some journalists have said YIMBY and NIMBY positions are independent of the left–right political spectrum[31][10] while scholars have called the NIMBY/YIMBY debate a false dichotomy.[32]

Academic research[edit]

Academic research has yielded some generalizable results on the effects of upzoning, the root causes of unaffordability, and the most efficacious policy prescriptions to help low-income workers in prosperous cities. However, scholars have said more research is necessary to determine the full effects of upzoning and market-rate housing development on affordability for all income levels in prosperous cities.[33][34]

Inclusionary Zoning[edit]

The California Legislative Analyst's Office (LAO) reported that parts of California which built more housing saw slower growth in rents for poor households and that market-rate development is associated with a protective effect against displacement, whereas the presence of an inclusionary-zoning mandate is not.[35]

Housing supply and prices[edit]

Studies show that strict land use regulations reduce housing supply and raise the price of houses and land.[36][37][38]


Upzoning (rezoning for more housing) may not generate immediate housing production and can worsen affordability: a study by Yonah Freemark published in Urban Affairs Review in 2019 found rezoning for denser development near transit stations in Chicago led to a speculative increase in property values and no additional development after a period of five years.[39] In follow-up commentary, Freemark said that the results had been misinterpreted as proof that upzoning will always raise housing prices. He said the study could describe the effects of upzoning, not the effects of new construction enabled by upzoning, and that affordability requirements (inclusionary zoning) could be included with upzoning. Freemark also said the findings of his study, which only looked at Chicago, were not necessarily generalizable to other regions and concluded that his study neither proved nor disproved that increases in housing density improve affordability.[33]

Another study published in Urban Studies in 2006 observed price trends within Canadian cities and noted very slow price drops for older housing over a period of decades; the author concluded that newly constructed housing would not become affordable in the near future, meaning that filtering was not a viable method for producing affordable housing, especially in the most expensive cities.[40]


In a 2020 Urban Studies article, Michael Storper and Rodriguez-Pose argue "that there is no clear and uncontroversial evidence that housing regulation is a principal source of differences in home availability or prices across cities."[22] The article was widely criticized by other scholars who say that Storper and Rodriguez-Pose set up a strawman (that upzoning will eradicate inequality on its own), and that the article "ignores much of the research on the topic, misstates or misunderstands the research it does cite, presents misleading and oversimplified analyses, and advances an argument that is internally inconsistent".[41]

Racial segregation[edit]

Research shows that strict land use regulations contribute to racial housing segregation in the United States.[42][43] Surveys have shown that white communities are more likely to have strict land use regulations and whites are more likely to support those regulations.[42]


A 2019 study by Chang-Tai Hsieh and Enrico Moretti in the American Economic Journal found that liberalization of land use regulations would lead to enormous productivity gains. The study estimated that strict land use regulations "lowered aggregate US growth by 36 percent from 1964 to 2009."[44][41]



In Toronto, Canada, a self-styled YIMBY movement was established in 2006 by community members in response to significant development proposals in the West Queen West area, and a YIMBY festival, launched the same year, has been held annually since.[45][46] The festival's organizer stated that "YIMBYism is a community mindset that's open to change and development."[46]


Yimby is an independent political party network founded in Stockholm in 2007, which advocates physical development, densification and promotion of urban environment with chapters in Stockholm, Gothenburg, and Uppsala.[47][citation needed] The group believes that the PBL (Plans and Constructions Act, from 1987) is a major impediment to any new construction, and should be eliminated or dramatically reformed.[48]

United Kingdom[edit]

London YIMBY was set up in 2016, publishing its first report with the Adam Smith Institute in 2017[49] which received national press coverage.[50] Its members advocate a policy termed 'Better Streets'. This proposal would allow residents of individual streets to vote by a two-thirds majority to pick a design code and allow extensions or replacement buildings of up to five or six stories, allowing suburban homes to be gradually replaced by mansion blocks. This flagship policy has achieved a degree of recognition, being endorsed by former Liberal Democrat MP Sam Gyimah[51] and the leader of the House of Commons Jacob Rees-Mogg.[52]

Other YIMBY groups have been set up in individual London boroughs and in cities suffering similar housing shortages, such as Brighton, Bristol and Edinburgh.

Members of the British YIMBY movement have been critical of established planning organisations such as the Town and Country Planning Association and the Campaign to Protect Rural England, accusing them of pursuing policies that worsen Britain's housing shortage.[53][54]

United States[edit]


Since 2014, in response to California's housing affordability crisis, several YIMBY groups were created in the San Francisco Bay Area.[55][56] These groups have lobbied both locally and at the state level for increased housing production at all price levels, as well as using California's Housing Accountability Act (the "anti-NIMBY law")[55]:1 [56]:1 to sue cities when they attempt to block or downsize housing development.[55] The New York Times explained about one organization: "Members want San Francisco and its suburbs to build more of every kind of housing. More subsidized affordable housing, more market-rate rentals, more high-end condominiums."[56]

From 2018 to 2020, the lobbying group California YIMBY joined over 100 Bay Area technology industry executives in supporting state senator Scott Wiener's Senate Bills 827 and 50. The bills failed in the state senate after multiple attempts at passage.[57]:1[58]:1[59] California YIMBY received $100,000 from Yelp CEO Jeremy Stoppelman, $1 million from Irish entrepreneurs John and Patrick Collison through their company, Stripe, and $500,000 raised by Pantheon CEO Zach Rosen and GitHub CEO Nat Friedman.[60][61]

YIMBY groups in California have supported the split roll effort to eliminate Proposition 13 protections for commercial properties, and supported the ballot measure known as Proposition 15, which would implement this change but failed to pass in 2020. This change would have potentially incentivized local governments to approve commercial property development (for its attendant business, payroll, sales and property tax revenue) over residential development and would not have provided funding earmarked for affordable housing development.[62]


Since 2012, several YIMBY groups were established in the greater Boston area.[63][64][65] One group argues that "...more smart housing development is the only way to retain a middle class in pricey cities like Boston and Cambridge."[66]

New York[edit]

In 2011, a YIMBY news website was created that focuses on construction trends in New York City.[67] In an interview with Politico, the creator stated: "Zoning is the problem, not development in this city. I think people don't really understand that."[68] Several YIMBY groups have also been created in New York City; according to an organizer: "In high-opportunity areas where people actually really want to live, the well-heeled, mostly white residents are able to use their perceived political power to stop the construction of basically anything," adding that low-income communities don't share that ability to keep development at bay: "Philosophically, we think that the disproportionate share of the burden of growth has been borne by low income, minority or industrial neighborhoods for far too long."[69]


In September 2018, the third annual Yes In My Backyard conference, named "YIMBYTown" occurred in Boston, hosted by that area's YIMBY community.[70] The first YIMBY conference was held in 2016 in Boulder, Colorado[71] and hosted by a group that included Boulder's former mayor, who commented that: "It is clearer than ever that if we really care about solving big national issues like inequality and climate change, tackling the lack of housing in thriving urban areas, caused largely by local zoning restrictions, is key."[72] The second annual conference was held in the San Francisco Bay Area city of Oakland, California.[73] These conferences have attracted attendees from the United States, as well as some from Canada, England, Australia, and other countries.[74][12]

See also[edit]

Further reading[edit]


  1. ^ Semuels, Alana (5 July 2017). "From 'Not in My Backyard' to 'Yes in My Backyard'". The Atlantic. Archived from the original on 2018-03-25. Retrieved 5 July 2017. Out of a desire for more-equitable housing policy, some city dwellers have started allying with developers instead of opposing them.
  2. ^ "YIMBY". Retrieved 15 September 2016 – via The Free Dictionary.
  3. ^ Einstein, Katherine Levine; Glick, David M.; Palmer, Maxwell (2019). Gentrification, Affordable Housing, and Housing Reform. Neighborhood Defenders: Participatory Politics and America's Housing Crisis. pp. 146–147. doi:10.1017/9781108769495.007. ISBN 9781108769495. Retrieved 2020-06-19.
  4. ^ "'YIMBY neo-liberal fascists' comment, perceived threats spark backlash against Cupertino planning commissioner". 25 June 2019.
  5. ^ "Go on, California — blow up your lousy zoning laws - the Boston Globe".
  6. ^ "Where Oregon's Single-Family Zoning Ban Came from".
  7. ^ Bateman, Chris (2015-09-09). "YIMBY Festival brings together Toronto's city-builders". Toronto Metro. Archived from the original on 2016-03-02. Retrieved 15 September 2016.
  8. ^ Kuntz, Tom (2009-08-17). "From Liberal NIMBY to Green YIMBY". The New York Times. Archived from the original on 2009-12-20. Retrieved 2018-07-31. There's a growing recognition that opposition to growth — in Berkeley and Oakland, for example — contributed to environmentally unfriendly suburban and exurban sprawl, and that "infill development" — dense urban housing near mass transit — is now the way to go.
  9. ^ McCormick, Erin (2017-10-02). "Rise of the yimbys: the angry millennials with a radical housing solution". The Guardian. Archived from the original on 2017-11-07. Retrieved 2018-08-23. The cause of our current shortage is 100% political," wrote Trauss in 2015, in an internet post that helped her build an army of followers to speak at public hearings, send letters and drum up support for housing on the internet.
  10. ^ a b Barnett, Erica (2016-11-01). "Meet the YIMBYs, Seattleites in Support of Housing Density - A new movement is saying yes to urban density in all its forms". Seattle Magazine. Archived from the original on 2016-12-05. Retrieved 2018-07-05. Although they span the political spectrum, from far left social-justice activists to hard-core libertarian free marketeers, YIMBYs generally agree that cities should be accessible and affordable for everyone, whether they own a million-dollar mansion or rent a $900-a-month studio, and whether they work as a barista or just moved to Seattle for a new job at Amazon.
  11. ^ Beyer, Scott (2017-03-01). "Build, Baby, Build: A New Housing Movement's Unofficial Motto". Governing. Archived from the original on 2017-05-12. Retrieved 2018-07-05. And its prescriptions vary thanks to the different groups that inevitably come together under its banner, such as construction industry people seeking deregulation aligning with social justice advocates who want tenant protections and affordability set-asides. Despite their different backgrounds, YIMBYs, who tend to be young and lean liberal, unify around the broad idea of adding more housing.
  12. ^ a b Stephens, Josh (2016-06-21). ""YIMBY" Movement Heats Up in Boulder". Next City. Archived from the original on 2016-09-15. Retrieved 2018-07-31.
  13. ^ "YIMBYs say yes to urban density and affordable housing". The Charlotte Observer. 2019.
  14. ^ Lake, Robert W. (Winter 1993). "Planners' Alchemy Transforming NIMBY to YIMBY: Rethinking NIMBY". Journal of the American Planning Association. 59 (1): 87–93. doi:10.1080/01944369308975847.
  15. ^ McCormick, Erin (October 2, 2017). "Rise of the yimbys: the angry millennials with a radical housing solution". The Guardian. San Francisco.
  16. ^ Angela Hart (2017-07-17). "'Yes in my backyard.' Silicon Valley money fuels fight against state's housing crisis". Sacramento Bee. Retrieved 2020-04-09.
  17. ^ Fernando Marti (2019-02-19). "YIMBY, White Privilege, and the Soul of Our Cities". Shelterforce. Retrieved 2020-04-09.
  18. ^ "Major Environmental and Affordable Housing Organizations Endorse Senator Wiener's SB 50, the More HOMES Act" (Press release). 2019-01-13. Retrieved 2020-04-09.
  19. ^ Laura Bliss (2019-04-05). "The Political Battle Over California's Suburban Dream". CityLab.
  20. ^ "Backers of Controversial 'YIMBY' Housing Development Bill Trying Again". Times of San Diego. 2020-01-13.
  21. ^ Levin, Matt (January 10, 2020). Will the latest changes to controversial housing bill get Newsom on board?. Gimme Shelter (Podcast). Calmatters. Scott Wiener, author of the YIMBY SB50 law, argues that the percentage of affordable housing is the maximum to make development viable at 44:30.
  22. ^ a b Michael Storper, Andres Rodriguez-Pose (2020). "Housing, urban growth and inequalities: The limits to deregulation and upzoning in reducing economic and spatial inequality". Urban Studies. 57 (2): 223–248. doi:10.1177/0042098019859458. S2CID 191923573.
  23. ^ Livable California. "Special Report: California YIMBY, Scott Wiener and Big Tech's Troubling Housing Push".
  24. ^ "A Call for Intersectional YIMBYism".
  25. ^ Fiske, Colin (February 22, 2018). "NIMBY, YIMBY, NIABY, YIEBY". Coalition for Responsible Transportation Priorities.
  26. ^ "Meet the YIMBYs: Can tech bros change California's housing policies?".
  27. ^ "Public Opinion about Energy Development: Nimbyism vs. Environmentalism" (PDF).
  28. ^ "The NIMBY Principle".
  29. ^ "Bill Text - SB-50 Planning and zoning: housing development: streamlined approval: incentives". California Legislative Information.
  30. ^ "Some See CEQA as a NIMBY Tool. But Environmentalists Want Landmark Law Strenghthened". KQED.
  31. ^ Badger, Emily (August 21, 2018). "The Bipartisan Cry of 'Not in My Backyard'". The New York Times.
  32. ^ "The Racial Contours of Bay Area YIMBY/NIMBY Gentrification" (PDF). Berkeley Planning Journal.
  33. ^ a b Yonah Freemark (2019-05-22). "Housing Arguments Over SB 50 Distort My Upzoning Study. Here's How to Get Zoning Changes Right - Whether more buildings and greater density make units more affordable is a good question, but results from Chicago are being misinterpreted. Turns out that the nuances and details matter". The Frisc. Retrieved 2020-04-09.
  34. ^ "UCLA's Ananya Roy on Housing Inequality & Market-Driven Displacement". Planningreport.com.
  35. ^ California Legislative Analyst's Office (2016-02-09). "Perspectives on Helping Low-Income Californians Afford Housing".
  36. ^ Tan, Ya; Wang, Zhi; Zhang, Qinghua (2020-01-01). "Land-use regulation and the intensive margin of housing supply". Journal of Urban Economics. Cities in China. 115: 103199. doi:10.1016/j.jue.2019.103199. ISSN 0094-1190.
  37. ^ Gyourko, Joseph; Molloy, Raven (2014). "Regulation and Housing Supply". Handbook of Regional and Urban Economics. doi:10.3386/w20536.
  38. ^ Kok, Nils; Monkkonen, Paavo; Quigley, John M. (2014-05-01). "Land use regulations and the value of land and housing: An intra-metropolitan analysis". Journal of Urban Economics. 81: 136–148. doi:10.1016/j.jue.2014.03.004. ISSN 0094-1190.
  39. ^ Freemark, Yonah (2019-01-29). "Upzoning Chicago: Impacts of a Zoning Reform on Property Values and Housing Construction". Urban Affairs Review. SAGE Publications. 56 (3): 758–789. doi:10.1177/1078087418824672. ISSN 1078-0874. S2CID 159317550. Lay summaryDoes Upzoning Boost the Housing Supply and Lower Prices? Maybe Not. (2019-01-31).
  40. ^ Andrejs Skaburskis (2006-03-01). "Filtering, City Change and the Supply of Low-priced Housing in Canada". Urban Studies. 43 (3): 533–558. doi:10.1080/00420980500533612. S2CID 155083776.
  41. ^ a b "How Housing Supply Became the Most Controversial Issue in Urbanism". www.bloomberg.com. 2019. Retrieved 2020-06-19.
  42. ^ a b Trounstine, Jessica (2020). "The Geography of Inequality: How Land Use Regulation Produces Segregation". American Political Science Review. 114 (2): 443–455. doi:10.1017/S0003055419000844. ISSN 0003-0554.
  43. ^ Trounstine, Jessica (2018). "Segregation by Design: Local Politics and Inequality in American Cities". Cambridge University Press. Retrieved 2020-06-16.
  44. ^ Hsieh, Chang-Tai; Moretti, Enrico (2019). "Housing Constraints and Spatial Misallocation". American Economic Journal: Macroeconomics. 11 (2): 1–39. doi:10.1257/mac.20170388. ISSN 1945-7707.
  45. ^ "About – yimby".
  46. ^ a b De Franco, Luca (2010-11-12). "Head Space: Christina Zeidler, YIMBY festival organizer". Spacing. Archived from the original on 2017-10-20. Retrieved 2018-06-26.
  47. ^ Ranen, Kaj (2014-10-06). "Europe's Most Successful Economy Is Way Too Good to Be True". Next City. Archived from the original on 2015-05-11. Retrieved 2018-06-24. ...Gustav Svärd, spokesperson for the progressive urban network YIMBY, which has more than 6,000 members. ... Gustav Svärd agrees that Stockholm has many positive things going on, and has witnessed a dramatic change among politicians since YIMBY was founded in 2007.
  48. ^ Ranen, Kaj (2014-10-06). "Europe's Most Successful Economy Is Way Too Good to Be True". Next City. Archived from the original on 2015-05-11. Retrieved 2018-06-24. Svärd wants to completely rethink the PBL structure. "The PBL was basically shaped to prevent new developments, and it makes it virtually impossible to create truly connected urban fabrics. We need to transform, or abolish, the PBL and create real urban plans for larger areas. At the moment, every single house has to go through a massive process of bureaucracy and appeals.
  49. ^ "London Yimby 2017 report" (PDF). Adam Smith Institute.
  50. ^ Myers, John (2017-08-11). "Forget nimbys. Yimby housing policy can transform the UK – with the political will". the Guardian.
  51. ^ "If the Tories really want to provide more homes, here's what they need to do". The Daily Telegraph. 2019-07-07.
  52. ^ Rees-Mogg, Jacob; Tylecote, Radomir, eds. (2019). Raising the Roof: How to solve the UK's housing crisis (PDF). Institute of Economic Affairs. ISBN 978-0-255-36783-7.
  53. ^ Watling, Sam; Bhandari, Bishal (2019-07-30). "Which four-letter acronym is worse for the housing crisis – the CPRE or the TCPA?". CityMetric.
  54. ^ Watling, Sam; Bhandari, Bishal (2019-04-12). "When did the CPRE start hating houses?". CityMetric.
  55. ^ a b c Murphy, Katy (2017-11-12). "'Homes for human beings': Millennial-driven anti-NIMBY movement is winning with a simple message". San Jose Mercury News. Archived from the original on 2017-11-23. Retrieved 2018-06-14.
  56. ^ a b c Dougherty, Conor (2016-04-16). "In Cramped and Costly Bay Area, Cries to Build, Baby, Build". The New York Times. Archived from the original on 2016-04-25. Retrieved 2018-07-02.
  57. ^ Pender, Kathleen (2018-04-19). "Yelp CEO calls on Google, Facebook to help housing crisis". San Francisco Chronicle. Archived from the original on 2018-04-28. Retrieved 2018-06-06.
  58. ^ Kendall, Marisa (2018-05-03). "Stripe gives $1 million to pro-development YIMBY group tackling Bay Area housing shortage". San Jose Mercury News. Archived from the original on 2018-06-09. Retrieved 2018-10-20.
  59. ^ Portantino, Anthony J. (May 16, 2019). "Senator Portantino's Statement on SB 50". California State Senate. Sacramento, California.
  60. ^ Efrati, Amir (2017-07-10). "Tech Leaders Seek Bigger Political Role With Housing Push". The Information.
  61. ^ "Stripe makes $1 million contribution to California YIMBY in support of lower-cost, high-density housing". Stripe Newsroom.
  62. ^ "California's YIMBYs: The Growth Machine's Shock Troops". City Watch LA.
  63. ^ Logan, Tim (2017-05-04). "Forget 'Not in my backyard,' YIMBY could be the new group on the rise". The Boston Globe. Archived from the original on 2017-05-15. Retrieved 2018-06-27.
  64. ^ Taber, Jake (2016-08-09). "YIMBY - Yes In My Back Yard - Takes a Stand Against Gentrification; Group advocates creating more affordable housing to meet demand for urban living". Metro.Us/Boston. Archived from the original on 2016-08-14. Retrieved 2018-06-27.
  65. ^ Kanson-Benanav, Jesse (2015-09-29). "Guest Column: How to keep Cambridge affordable". Cambridge Chronicle. Archived from the original on 2015-10-24. Retrieved 2018-06-28.
  66. ^ Logan, Tim (2016-06-24). "Jesse Kanson-Benanav: Community organizing, with a focus on housing". The Boston Globe. Archived from the original on 2016-06-25. Retrieved 2018-06-28.
  67. ^ Rosenblum, Constance (2014-04-04). "Sure, Build It in My Backyard". The New York Times. Archived from the original on 2014-10-20. Retrieved 2018-07-03.
  68. ^ Prakash, Nidhi (2014-07-29). "Nikolai Fedak, city polemicist". Politico. Archived from the original on 2017-03-30. Retrieved 2018-07-03.
  69. ^ Raskin, Sam (September 17, 2018). "The YIMBY movement comes to New York City - Open New York, the city's first self-style YIMBY group, advocates for more housing in high-opportunity areas". Curbed. Archived from the original on 2019-02-03. Retrieved 2019-03-28.
  70. ^ "YIMBYTown".
  71. ^ Groover, Heidi (2016-06-17). "The First-Ever YIMBY Conference Is Happening Right Now". The Stranger. Archived from the original on 2016-07-22. Retrieved 2018-07-04.
  72. ^ McPhate, Mike (2017-07-14). "California Today: A Spreading 'Yimby' Movement". The New York Times. Archived from the original on 2017-08-09. Retrieved 2018-07-19.
  73. ^ Keeling, Brock; Walker, Alissa (2017-07-20). "Can a grassroots movement fix urban housing shortages?". Curbed. Archived from the original on 2017-08-21. Retrieved 2018-07-19.
  74. ^ Bergthold, Garrett (2017-07-18). "YIMBYs Build Momentum at Conference 2017". Beyond Chron. Archived from the original on 2017-07-18. Retrieved 2018-07-19.

External links[edit]