What Would Prop 45 Change About New Housing Near You in North County?

by Zach Arrington

Updated October 2026

Proposition 45 would create an optional, faster track under the California Environmental Quality Act (CEQA) for projects it calls "essential," including housing, water, transportation, clean energy, education, health, wildfire and broadband projects, with set deadlines for agency reviews and for lawsuits. A YES vote makes those projects eligible for the new procedures; a NO vote keeps today's review and court rules. For coastal North County, the biggest effect would be on the timing of larger housing and infrastructure projects your neighbors follow, not on a typical ADU at your own home.

I'm Zach Arrington, Broker Associate with Real. I work with buyers and sellers in coastal North County, from Carmel Valley and Del Mar to Solana Beach, Encinitas, Cardiff by the Sea and Rancho Santa Fe. This post draws on the Legislative Analyst's Office (LAO), the voter guide and the measure text.

What Prop 45 would do

Prop 45 sets up optional CEQA and permit procedures with deadlines for agencies and courts. Under current law, the LAO says, a project with significant impacts that minor changes cannot fix needs a detailed study called an environmental impact report (EIR); most projects do not need one, but large and complex projects more often do.

For projects that opt in, the LAO says Prop 45 would:

Create more binding time limits for state and local governments to finish CEQA and permit reviews.
Measure environmental impacts against the laws and standards in place when the application is submitted.
Let the applicant develop just one project alternative for the agency to consider.
Put a maximum, rather than a minimum, on public comment periods.
Narrow court review and keep a court from halting a whole project when it finds the agency did not follow CEQA correctly.

The measure is optional: its text lets an applicant use none, some or all of its provisions.

Key deadlines in the measure text

Agency review deadlines in Sections 21018 and 21019 count business days (no weekends or state holidays) from the date the application is complete; all others count calendar days.

Step	Deadline	How days count
Agency decides whether an initial application is complete	30 days	Calendar
Agency decides which level of review applies, after the application is complete	30 days	Business
Final decision on an exemption, or a finding that an earlier review already covers the project	90 days	Business
Final decision on a negative declaration or mitigated negative declaration	180 days	Business
Final decision on whether to certify an EIR	365 days	Business
Public comment on a negative declaration	20 days	Calendar
Public comment on a draft EIR	45 days	Calendar
Filing a CEQA lawsuit	30 days from the agency's notice	Calendar
Court resolution, including appeals	270 days, which a court may extend by up to 90 more	Calendar

By my own count, 365 business days is 73 weeks, or 511 calendar days, before state holidays are added, so roughly 17 months. If an agency misses the EIR deadline, the LAO says the applicant could request a hearing.

What a YES vote and a NO vote mean

A YES vote means certain public and private projects would become eligible for the new review and court challenge procedures, including tighter environmental review deadlines and a narrower scope for lawsuits, according to the LAO. A NO vote means public and private projects would keep using the existing review and court challenge procedures.

If voters approve it on November 3, 2026, the measure says it takes effect under Article II, Section 10(a) of the California Constitution. The official 2018 voter guide for Prop 71 explains that this means five days after the Secretary of State files the statement of the vote, no later than 43 days after Election Day. Results will be certified later, and I will update this post after the election.

What it would mean for North County homeowners, buyers and sellers

The likely local effect would be on how long larger projects take to clear review and lawsuits. My method: I compared the eligible categories with SANDAG's published plans and HCD's ADU rules.

Housing plans. SANDAG's final plan assigns these 2021 to 2029 housing allocations:

Jurisdiction (covers)	2021 to 2029 housing allocation
Del Mar	163 units
Solana Beach	875 units
Encinitas (includes Cardiff by the Sea)	1,554 units
City of San Diego (includes Carmel Valley)	108,036 units
Unincorporated County (includes Rancho Santa Fe)	6,700 units

Del Mar, Solana Beach and Encinitas together account for 2,592 units. Prop 45's housing definition covers residential projects, mixed use developments, senior and student housing, subdivisions and commercial to residential conversions, with no general minimum unit count. So a condo, townhome or apartment project that needs CEQA review could choose the new deadlines.

Coastal rail. SANDAG is studying options for the LOSSAN Rail Realignment that include moving the rail line off the Del Mar bluffs; no alignment has been chosen. In May 2025, SANDAG released an updated notice that it is preparing a Draft EIR. Transportation projects (other than high speed rail) are on Prop 45's eligible list, a public agency can be an applicant, and the measure applies to pending reviews of essential projects. Whether SANDAG would opt in is unknown.

Your own ADU. HCD says ADUs and junior ADUs approved ministerially are statutorily exempt from CEQA, and state law says CEQA does not apply to ministerial projects. That means Prop 45 would usually have little to speed up for a standard ADU. HCD also notes that if an ADU needs a discretionary coastal development permit, that permit may be subject to CEQA.

Where it does and doesn't apply

Prop 45 covers only projects in its eligible categories whose applicants choose to use it. The LAO lists these types: housing; water systems (not Delta conveyance facilities); clean energy (not nuclear power); health facilities, clinics and medical office buildings; fire, police and sheriff's stations; wildfire risk reduction; broadband internet access; education facilities; and transportation (not high speed rail). The measure text excludes any project that includes a jail or other detention facility or a new oil or natural gas production facility.

The measure text does not mention single family homes or ADUs, and it has no section on coastal development permits or the Coastal Commission. Its findings list the California Coastal Act among the environmental laws it says the measure keeps in place.

Fiscal effects

The LAO estimates that in the first several years, Prop 45 likely would increase state and local government costs, likely in the high tens of millions of dollars a year and potentially more than $100 million a year. Applicant and lawsuit fees would cover some of those costs.

Longer term, the LAO calls the effects uncertain but potentially more significant: faster public projects could lower costs and more construction could raise tax revenues, such as property taxes, while approving projects with negative environmental impacts could raise government costs.

What supporters and opponents say

What supporters say

The argument in favor is signed by leaders of hospital, water utility and affordable housing groups. Supporters say permitting delays make housing and essential projects slower and costlier, stating "Permitting delays add more than $75,000 to the cost of a new home." They say "Prop. 45 does not exempt a single project from environmental review," and that cities and counties keep full authority to approve or deny projects.

What opponents say

The argument against is signed by leaders of clean air, clean water and environmental voter groups. Opponents say "Prop. 45 eliminates many of CEQA's existing protections" and reduces requirements for agencies to consider public comments. Their rebuttal adds, "It doesn't require a single project to lower your rent, your mortgage, or your utility bills," and says weaker review could mean more pollution near homes and schools.

Both arguments are the authors' opinions; read them in full in the official voter guide.

What this means if you own a home, are buying or selling

If you own a home, any effect would mostly come from projects near you, and only if their applicants opt in. If you are buying, ask the city about nearby housing sites or public projects in review, since timelines could be shorter for projects that elect the new track. If you are selling, buyers may ask the same, and city planning pages have answers.

Frequently asked questions

What does Prop 45 do in simple terms?

Prop 45 creates an optional, faster CEQA review and permit process for projects it defines as essential, such as housing, water, transportation and clean energy. It sets deadlines for agencies, limits public comment periods to set lengths, and narrows lawsuits. Applicants can still use the existing process instead.

What does a yes vote on Prop 45 mean?

A YES vote means certain public and private projects would become eligible for new review and court procedures, including tighter environmental review deadlines and a narrower scope for court challenges. Applicants could choose to use none, some or all of the new procedures.

What does a no vote on Prop 45 mean?

A NO vote means public and private projects would keep using the existing environmental review and court challenge procedures, without the new deadlines or the new limits on lawsuits that Prop 45 would create.

Does Prop 45 apply to single family homes or ADUs?

The measure text does not mention single family homes or ADUs, and its housing definition has no general minimum unit count, though a mixed use project that is less than two thirds residential must include at least 500 new homes to qualify. HCD says ADUs approved ministerially are already statutorily exempt from CEQA, so Prop 45 would usually have little to change for a standard ADU. An ADU that needs a discretionary coastal development permit may be subject to CEQA, according to HCD.

How long would an environmental impact report take under Prop 45?

The agency would have to decide whether to certify an EIR within 365 business days after the application is complete. Business days exclude weekends and state holidays, so that is about 17 months on the calendar. If the agency misses the deadline, the applicant could request a hearing.

Does Prop 45 change the California Coastal Act?

The measure text has no section on coastal development permits or the Coastal Commission. Its findings list the California Coastal Act among the laws it says the measure keeps in place. HCD notes that ADU laws do not lessen Coastal Act resource protection policies.

What would Prop 45 cost the state?

The LAO estimates higher state and local costs in the first several years, likely in the high tens of millions of dollars a year and possibly more than $100 million a year, partly offset by fees. Longer term effects are uncertain and could be positive or negative.

When would Prop 45 take effect if it passes?

The measure takes effect under the State Constitution's rule for initiatives, which the official 2018 voter guide described as five days after the Secretary of State files the statement of the vote. It would then apply to pending and future reviews of essential projects. Its deadlines apply to applications found complete after the effective date.

Who supports and who opposes Prop 45?

The official argument in favor is signed by leaders of hospital, water utility and affordable housing groups. The official argument against is signed by leaders of clean air, clean water and environmental voter groups. Both arguments are in the Secretary of State's voter guide.

This is one of five explainers on the November 2026 propositions that affect California homeowners: What Is Prop 1, the 2026 Housing Bond, and What Would It Mean for North County?, What Is Prop 37, and Could It Help You Buy a New Home in North County?, What Does Prop 42 Do, and Would It Change Taxes on Your Home? and What Is Prop 43, and What Would It Change for North County Homeowners?

Questions about how a ballot measure could affect buying or selling your home? Call or text Zach Arrington at (619) 374-5339 or email zach@zarealtygroup.com.

This article is general information and does not recommend how to vote. It is not legal, tax or financial advice. Read the official voter guide and the full measure text before you vote.

Zach Arrington, DRE 02135675, Real Broker, LLC