A New California Law Could Radically Change Homebuying–But There’s a Catch
CALIFORNIA STATE – California voters will soon decide whether to create one of the largest homebuying assistance programs in state history.
Proposition 37, appearing on the November 3 ballot, would allow eligible buyers to purchase certain homes with as little as 3% of the price coming from their own money. A new state-backed loan could cover up to another 17%, effectively creating a 20% down payment.
For Californians struggling to save six figures while paying rent, that could fundamentally change the math of buying a home.
But the first catch is important: Proposition 37 is not law yet. And even if voters approve it, the state assistance would be a second mortgage that buyers must repay–not free down payment money.

Why California Buyers Are Struggling
California’s housing market has become increasingly inaccessible to households without substantial savings or family assistance.
Only 19% of California households could afford the state’s median-priced single-family home during the second quarter of 2026, according to the California Association of Realtors.
The association calculated that purchasing the $916,750 median-priced home required an annual income of approximately $228,400 and a traditional 20% down payment. The estimated monthly payment was $5,710, including principal, interest, taxes and insurance.
A 20% down payment on that median-priced home would total more than $183,000–before closing costs, moving expenses or repairs.
Proposition 37 is designed to attack that upfront barrier.

How the Proposed Program Would Work
The measure would authorize the California Housing Finance Agency, commonly known as CalHFA, to issue up to $25 billion in revenue bonds.
That money would fund fixed-rate “middle-class homeownership loans” covering as much as 17% of an eligible home’s purchase price. Buyers would contribute at least 3% from their own nonborrowed funds and obtain a conventional first mortgage for the remaining cost.
Consider a $700,000 home:
- The buyer would contribute at least $21,000, or 3%.
- The new CalHFA loan could provide up to $119,000, or 17%.
- A traditional first mortgage would cover the remaining $560,000.
That structure could reduce the buyer’s immediate down payment requirement from $140,000 to $21,000. Because the first mortgage would cover only 80% of the purchase price, the arrangement could also allow the buyer to avoid private mortgage insurance.
The program would not be limited to first-time homebuyers. Applicants would generally need to have lived in California for at least one year, occupy the property as their primary residence within 60 days and earn no more than 200% of the area median income.
The income limit would vary substantially by location and household size. It could reach well into six figures in California’s most expensive counties.
The state’s official Proposition 37 analysis says the assistance would be available only when the buyer is the property’s first purchaser. Eligible properties could include newly constructed houses, townhomes, condominiums and manufactured homes, along with newly created residences inside converted nonresidential buildings.

Existing homes would not qualify.
Home prices would also be capped at approximately $1 million to $1.5 million, depending on the county, with the limits adjusted annually.
But the Money Isn’t Free
The biggest catch is that the state’s 17% contribution would be a second mortgage, not a grant.
Homebuyers would have to repay that loan with interest in addition to making payments on their conventional first mortgage. Revenue from those payments would be used to repay the investors who purchased the state’s bonds and cover CalHFA’s administrative costs.
The exact interest rates and repayment terms have not been established. CalHFA would determine them after the measure passes and the program is developed.

That uncertainty is important. The nonpartisan California Budget & Policy Center noted that second mortgages are riskier for investors because the first-mortgage lender gets paid first if a borrower defaults.
Consequently, investors may demand higher returns, potentially causing the second mortgage to carry a higher interest rate than the buyer’s primary loan.
The center concluded that the additional monthly payment could erase much of the benefit buyers receive by avoiding private mortgage insurance, according to its analysis of Proposition 37.
It Would Only Apply to New Homes

Again, another major limitation is that Proposition 37 could not be used to purchase an ordinary resale home.
The buyer would need to be the first purchaser of a newly constructed property or a new residential unit created by converting a former commercial building. Eligible properties could include detached houses, townhomes, condominiums and manufactured homes.
Supporters argue that restricting the program to new construction could encourage developers to build more homes rather than simply increasing competition for the state’s existing housing supply.
But the restriction could make the program less useful in coastal communities where relatively few new homes are built. It could also steer buyers toward suburban and inland developments that may be farther from employment centers or located in areas facing higher wildfire and insurance risks.
It Isn’t Law Yet
Despite the potentially sweeping changes, Proposition 37 is still only a proposal.
California voters will decide its fate during the November 3, 2026, statewide election. A “yes” vote would require the state to create the new homebuying assistance program and authorize CalHFA to issue up to $25 billion in revenue bonds.
Even if voters approve it, the assistance would not become available immediately. CalHFA would have up to one year to establish the program, develop underwriting standards and set loan terms.
The agency would also determine how much of the authorized $25 billion to issue and when. The eventual size of the program would depend partly on investor demand for the bonds.
For buyers who can afford monthly housing costs but cannot save a six-figure down payment, Proposition 37 could remove one of the biggest obstacles to homeownership.
But it would not make California homes inexpensive. It would primarily convert a large portion of the upfront cost into a second monthly debt — and buyers will not know how expensive that debt will be until after the measure has passed.