Buying a Home in Marin or Sonoma County: The Financing Side Nobody Explains
Most guides to buying in Marin or Sonoma County talk about neighborhoods, schools and commutes. All important. But the deals that fall apart usually fall apart on the money: the wrong loan type, a pre-approval that was not really an approval, or a surprise in the insurance quote.
Ted Erickson lives in Novato and has been a mortgage broker for 24 years. Here is the financing side of buying in Marin and Sonoma County, in plain English.
Know Your 2026 Loan Limits
Loan limits decide what kind of mortgage you need, and that affects your options and cost.
The Federal Housing Finance Agency (FHFA) sets conforming loan limits each year for loans that Fannie Mae and Freddie Mac can buy. For 2026:
- National baseline (one-unit): $832,750
- Marin County (one-unit): $1,249,125, the high-cost ceiling
- Sonoma County (one-unit): $897,000
Marin is at the maximum allowed anywhere in the continental U.S. Sonoma sits above the baseline but well below Marin.
What the Limits Mean for You
| Loan amount (one-unit home) | Marin County | Sonoma County |
|---|---|---|
| Up to $832,750 | Conforming | Conforming |
| $832,751 to $897,000 | High-balance conforming | High-balance conforming |
| $897,001 to $1,249,125 | High-balance conforming | Jumbo |
| Over $1,249,125 | Jumbo | Jumbo |
Note that the limit applies to the loan amount, not the purchase price. A buyer putting more cash down can buy a higher-priced home and still stay within the conforming limit.
Conforming, High-Balance and Jumbo
- Conforming: standard Fannie Mae and Freddie Mac guidelines.
- High-balance conforming: still a Fannie Mae or Freddie Mac loan, just in a high-cost county. Guidelines can be slightly tighter.
- Jumbo: above the county limit. Each lender sets its own rules. Large banks are often very competitive on jumbo loans for high-income, high-asset borrowers, and Ted will tell you straight when a bank is the better call.
Step 1: Get a Real Pre-Approval
In competitive Marin and Sonoma County neighborhoods, sellers and listing agents look hard at your financing.
- Pre-qualification is a quick estimate based on what you tell a lender.
- Pre-approval means your income, assets and credit have actually been reviewed.
The stronger your pre-approval, the stronger your offer. Ted reviews documents up front so the letter means something, and he will call the listing agent to back it up.
Step 2: Budget for the Full Monthly Cost
Your monthly cost is more than principal and interest.
Property Taxes
Under Proposition 13, a home is reassessed when it changes ownership. Your tax bill is based on what you pay, not what the seller paid. Many Marin and Sonoma County cities and districts also have parcel taxes and special assessments. Check the actual tax rate for the specific address.
Homeowners Insurance
Wildfire risk affects insurance availability and cost in parts of both counties. Get an insurance quote as soon as you are serious about a property, ideally before you remove contingencies. Lenders need proof of coverage before closing.
HOA Dues
Condos and planned communities have HOA dues, and condo projects must meet the lender’s project approval rules. Ask early.
Step 3: Pick the Right Loan Program
Marin and Sonoma County buyers often have non-standard situations: self-employment, retirement income, rental properties or equity in another home.
- Conventional and high-balance conforming: for most buyers within the limits.
- FHA: flexible credit guidelines, with its own county loan limits.
- VA: for eligible veterans and service members.
- CalHFA programs: for first-time buyers within income limits. Ted is CalHFA-approved.
- Bank-statement loans: for self-employed buyers whose tax returns understate income.
- Asset depletion: for retirees and others with savings but little paycheck income.
- Bridge financing: for buyers who want to buy before selling.
Step 4: Check Local Help
Marin Housing Authority runs a below-market-rate (BMR) ownership program for qualifying first-time buyers in San Rafael, and several other Marin towns hold their own BMR lotteries. BMR homes come with long-term resale restrictions, so understand the trade-off before you apply. Marin Housing also provides mortgage credit certificates to eligible BMR buyers.
Step 5: Write a Clean Offer
- Match your contingency timelines to reality. Ask Ted how long the appraisal and underwriting will take before you shorten your loan contingency.
- Watch the appraisal. In a fast market, the appraisal can come in below the contract price. Know your plan if it does.
- Do not change anything financially between offer and closing. No new credit, no job changes without a call to Ted first.
Marin vs Sonoma: Quick Financing Differences
| Factor | Marin County | Sonoma County |
|---|---|---|
| 2026 one-unit conforming limit | $1,249,125 | $897,000 |
| Jumbo loans more common | Yes, at higher price points | Less common |
| Local BMR ownership programs | Yes, through Marin Housing Authority and towns | [FILL IN — confirm Sonoma County or city programs] |
| Wildfire insurance considerations | Yes, in some areas | Yes, in some areas |
Above your county’s limit? See Ted’s jumbo mortgage broker page. Ready to buy? Read Ted’s guide for the California first time home buyer, and see the Novato, San Rafael, Petaluma and Santa Rosa mortgage broker pages, or the full Marin and Sonoma list.
Marin and Sonoma Home Buying Questions
Talk to Ted
Buying in Marin or Sonoma County? Talk to Ted before you write an offer.
Call or text Ted at (415) 717-0477, or get your options online.
Sources
- Federal Housing Finance Agency: 2026 conforming loan limit values
- California State Board of Equalization: change in ownership and reassessment FAQs
Ted Erickson (Theodore Emery Erickson), NMLS #223442. Barrett Financial Group, L.L.C., NMLS #181106, 3207 Grey Hawk Court, Suite 110, Carlsbad, CA 92010. CA 60DBO-46052 and 41DBO-148702, licensed by the Dept. of Financial Protection and Innovation under the California Residential Mortgage Lending Act. Equal Housing Opportunity. Not all borrowers will qualify. This article is general information, not a commitment to lend.
