Is it cheaper to rent or buy in the Bay Area right now?
Renting, if the renter invests the difference. The typical San Francisco, CA home is worth $1,123,193 and rents for $3,409 a month (+2.3% and +10.9% over the past year), a price-to-rent ratio of 27.5 against 15.8 nationally. Run through our model with 20% down at 6.5%, the Bay Area's property tax and transaction costs, and a 10-year stay, renting ahead by about $556,000 . The rent that flips it is $6,444 a month (+89% against the typical rent).
Month to month, owning the typical home costs about $7,928 — principal and interest of $5,679 plus tax, insurance and maintenance — against $3,424 for the rent and renter's insurance. The verdict is not that monthly gap; it is what each person is worth after 10 years, with the home sold, selling costs paid, taxes settled and both sides' invested surpluses counted.
| Metro | Typical home | Typical rent | Ratio | Verdict (10y, 6.5%) | Rent that flips it |
|---|---|---|---|---|---|
| San Francisco, CA | $1,123,193 | $3,409 | 27.5 | Rent +$556,000 | $6,444 (+89%) |
| San Jose, CA | $1,527,731 | $3,815 | 33.4 | Rent +$907,000 | $8,770 (+130%) |
Verdicts use the property tax and transaction-cost presets below with each metro's typical home value and rent; everything else is the site default. The hub page holds every metro at the defaults, which is why its verdicts differ slightly. The first row is the one the rest of this page walks through.
What would flip the verdict in the Bay Area?
Rates, mostly, and the ladder shows how far they would have to move. Each row re-runs the typical San Francisco, CA home and rent at that mortgage rate with the local costs:
| Mortgage rate | Verdict after 10 years | Rent at which buying wins |
|---|---|---|
| 5.0% | Rent +$384,000 | $5,506 |
| 5.5% | Rent +$441,000 | $5,815 |
| 6.0% | Rent +$498,000 | $6,128 |
| 6.5% (model default) | Rent +$556,000 | $6,444 |
| 7.0% | Rent +$614,000 | $6,764 |
| 7.5% | Rent +$673,000 | $7,086 |
| 8.0% | Rent +$733,000 | $7,411 |
The other lever is the rent you actually compare against. Zillow's typical rent covers every rental type, apartments included; if the home you would buy rents for more than $6,444 a month, buying is already winning on these assumptions. The price-to-rent ratio calculator turns your own listing into the same answer.
Why does the Bay Area favor renting so heavily?
Because the price-to-rent ratio is the highest of any large metro, and no realistic mortgage rate closes a gap that wide. A typical San Francisco home costs about 27 times its annual rent and a San Jose home more than 30; the national figure is under 16. The ladder above says the same thing in dollars: even at 5% the typical Bay Area home loses to renting-and-investing over ten years, and the rent that would flip the verdict is far above what the typical rental commands. Should you buy in an expensive city walks through why the ratio, not the rate, is the variable here — a rate cut moves the buy-favorable ratio line by a point or two, and these markets sit ten points beyond it.
What does Proposition 13 do to the math?
It makes the property tax preset unusually knowable, and it rewards staying. A sale resets the assessed value to the price, the base rate is 1% with local bonds on top (1.18% in San Francisco this fiscal year), and the assessment can then rise at most 2% a year whatever the market does. The model’s default tax growth is already 2%, so a Bay Area owner’s tax line behaves exactly as the site assumes — and the longer the stay, the further the capped tax falls behind the home’s value. The Census median for existing San Francisco owners, about 0.75% of value, is the visible result of decades of that cap; it is not the rate a buyer pays on day one.
What about the rent you would actually compare?
Zillow’s typical rent spans every rental type, and in the Bay Area the gap between a one-bedroom apartment and a comparable single-family rental is wide. If the home you would buy rents for well above the typical figure — common for houses in the same school district — buying’s deficit shrinks, and the calculator link above lets you put that rent in directly. The reverse also holds: if the place you would genuinely rent is an apartment, buying a house vs renting an apartment shows how to price the difference honestly rather than comparing a house payment with an apartment rent.
What this page assumes for the Bay Area
The site defaults, with the inputs below changed to the Bay Area's own figures. Each one is sourced at the bottom of the page; the "Run it" link carries all of them into the calculator so you can change any of them.
| Input | the Bay Area | Site default |
|---|---|---|
| Property tax, year one | 1.18% of price | 1.1% |
| Property tax growth | 2% a year | 2% |
| Buyer's closing costs | 3% of price | 3% |
| Selling costs at the end | 6.8% of value | 6% |
| Home insurance | $2,500 a year | $2,500 |
- Property tax 1.18% of price: San Francisco's secured property tax rate for fiscal year 2025-26 is 1.18268325% of assessed value, and Proposition 13 resets the assessment to the purchase price on a sale. San Jose and the rest of the Bay Area use the same 1% base with their own local bonds on top.
- Property tax growth 2% a year: Proposition 13 caps the annual increase in assessed value at 2%, which happens to equal the site default, so it is stated here as a California rule rather than an assumption.
- Selling costs 6.8%: the site's 6% default plus San Francisco's transfer tax of $3.75 per $500 (0.75%) on sales of $1,000,000 to under $5,000,000, the tier the typical home falls in. The tax is set by the city's fee schedule; who pays it is negotiated, and this page books it against the sale.
Everything else — 20% down, a 30-year fixed at 6.5%, 3% appreciation, 2.5% rent growth, 7% investment return, the standard deduction — is the national default, and the direction of each simplification is stated on the metro hub. State income tax is not modelled. A typical home is not a typical rental: the ratio is a market-level screen, and the calculator is for the actual house and the actual comparable rent.
Run your own numbers
Open the calculator with San Francisco, CA's typical home, rent and local costs loaded, then replace them with the listing and the rental you are actually weighing. Every figure on this page is computed at build by the same open-source engine as the calculator, covered by 188 automated tests and documented on the methodology page; home values and rents are Zillow Research's public series for the month ending 2026-08-31.
