Measure would narrow environmental reviews and cap court timelines for housing
California’s Proposition 45 is on the ballot with support from Assemblymember Buffy Wicks and much of the building industry, while Eastbay for Everyone, the Greenbelt Alliance and environmental justice groups oppose the measure. Supporters say it would accelerate housing construction by narrowing reviews under the California Environmental Quality Act and limiting court timelines. The dispute within the pro-housing movement is over where and how much low-density development at metropolitan fringes should occur, not over whether California should build more homes; California YIMBY says some exurban growth is necessary to address the housing shortage.
The measure has support from Assemblymember Buffy Wicks, an Oakland Democrat, and the bulk of the building industry, including many major for-profit and nonprofit developers. The Associated Press described Eastbay for Everyone and the Greenbelt Alliance, which oppose Proposition 45, as two typical allies of Wicks. Abundant Housing Los Angeles, SPUR, California YIMBY and YIMBY Action have taken neutral positions. “It’s been a weird campaign so far,” said Ali Sapirman, advocacy manager at the Housing Action Coalition, an urban building industry group that supports the measure. “The housing community has been a little bit fractured.”
If approved, Proposition 45 would speed the review required under CEQA for all types of housing projects, including transit-adjacent downtown condo towers and freshly paved subdivisions at the metropolitan fringe. It would not exempt any projects from environmental review outright. For projects deemed “essential,” it would narrow the focus of reviews and require completion within 365 business days; judges would have 270 business days to resolve resulting litigation, and the measure would make such lawsuits harder to sustain. Essential projects would also include roads, hospitals, schools, clean energy projects, water and broadband infrastructure.
The split is primarily about where and how much low-density housing at the edge of metro areas should accompany California’s housing growth. In California YIMBY’s non-endorsement statement, Max Dubler wrote, “The central question here is how you feel about sprawl.” He said some exurban growth “will necessarily be part of solving our housing shortage,” but worried the measure could make it easier to build “car-dependent sprawl housing and the freeways and water infrastructure necessary to serve that sprawl.”
Greenbelt Alliance legislative director Jordan Grimes called the measure “a doubling down on essentially 75 years of land-use patterns that we know haven’t worked.” He said, “It’s a return to the sprawl era.” Not everyone in the housing movement sees that outcome as a problem. Among supporters who want California to build more housing, opinions differ over whether environmentally friendly infill development alone is sufficient. “I’m an ‘all of the above’ person when it comes to housing,” Wicks said, explaining her support for the measure. “I think we need housing of all different types, shapes, and sizes.”
For nearly a decade, YIMBY activists and other pro-development advocates sought an overhaul of CEQA to clear the way for more housing construction. The Legislature passed a series of streamlining bills intended to speed regulatory approval of new construction, but almost all applied only to projects in places where homes and other infrastructure already existed. Prioritizing infill development helped bring together developers, construction labor unions and a diverse group of Democratic-leaning advocates whose interest in seeing more apartments and condos went beyond affordability alone. Climate activists wanted less commuter-car traffic; transit, bicycle and pedestrian advocates wanted more riders and walkers; urbanists wanted Los Angeles to more closely resemble Barcelona. By covering subdivisions at the metropolitan fringe, Proposition 45 would drive a wedge inside that coalition.
An earlier version of the split surfaced in 2023, when a handful of Bay Area technology investors announced plans for a new city on Solano County farmland under the banner of California Forever. Some YIMBY commentators welcomed the proposal as a source of much-needed housing supply; others decried it as “sprawl dressed in urbanist clothing.” Proposition 45 has carried that regional debate to a statewide scale.
Proposition 45 is about more than housing policy. CEQA requires public agencies to review the possible environmental consequences of decisions they make, including permits for private projects. For decades, industry groups, developers and, more recently, housing-supply advocates have said the law makes it too easy for project opponents to jam worthwhile projects by repeatedly demanding additional analysis. “The clock is endless and the number of people and entities who can challenge you are also endless,” said Linda Mandolini of Eden Housing, an affordable housing developer.
Housing has loomed large in the electoral debate. The Yes on 45 campaign has touted the support of affordable-housing developers and advocates while pointing to affordability concerns as the measure’s initial impetus. Environmental challenges to some housing projects have regularly generated headlines for years, helping cement the view among lawmakers and many voters that CEQA is a major cause of California’s housing problems. Environmental justice groups and their allies opposed that argument in the Legislature for years and now oppose Proposition 45 because they reject the premise that CEQA needs fixing, even though the measure would not exempt essential projects outright.
Grimes personally supported many recent streamlining bills and said the argument that CEQA was holding up desperately needed residential construction was a year out of date. The governor signed Assembly Bill 130, a Wicks-authored measure that exempted most infill housing from CEQA. Since the law took effect in July 2025, developers have used it to entitle 17,913 housing units, according to the Office of Land Use and Climate Innovation, a state agency. His organization, Greenbelt Alliance, applauded last year’s exemption. “When you look at what’s left to do on urban housing, there are absolutely still barriers,” Grimes said. “CEQA just isn’t one of them.” He said the No on 45 campaign’s task is to persuade enough voters that “we’ve actually solved this problem.”
Many developers and affordable-housing advocates, including those working in urban areas, dispute that CEQA is no longer a major obstacle. The 2025 exemption does not cover projects larger than 20 acres, leaving supersized urban redevelopment projects under the old process. Proposition 45 would also place shot clocks on other permits issued later in the development process, which regularly slow projects more than environmental review does. State laws such as the infill carveout may grant certain developers the right to disregard CEQA, but they do not prevent an opponent with enough money from suing anyway. Limits on litigation could determine whether a project succeeds or is delayed, Mandolini said.
Eden Housing’s experience illustrates that risk. Eden Housing, the builder, has been trying and failing to build a planned 130-unit affordable housing project in the Bay Area suburb of Livermore since 2018. In 2021, a separate nonprofit funded by a handful of Livermore residents sued the city, arguing that officials had not done enough environmental analysis for a housing development on a former grocery store parking lot behind a row of downtown restaurants. A lower court ruled that the plaintiff’s CEQA arguments were “almost utterly without merit.” An appellate court agreed, and the state Supreme Court allowed that ruling to stand. By then, two years had passed.
“Every year you lose in litigation is real money for real projects and another year that 130 families don’t get to live in that housing,” Mandolini said. “It’s a great way to kill a project.” She said the same risk applies even to an infill project.
Support for Proposition 45 also comes from housing advocates that do not share the movement’s urbanist focus. The Inner City Law Center, a legal aid provider and housing advocacy group in Los Angeles’ Skid Row, supports the measure and does not object to more housing far from the city’s core. “We’re not an urbanist organization,” said Mahdi Manji with the group. “To the extent it results in housing that is a little more affordable in Lancaster and Palmdale, a lot of our clients live out in Lancaster and Palmdale.”