San Diego Loan Limits for 2026: Conforming, High-Balance & Jumbo Explained
The short answer
For 2026, the conforming loan limit in San Diego County is $1,104,000 for a single-family home. Loans above the national baseline of $832,750 but at or below $1,104,000 are called "high-balance" conforming loans. Anything above the county limit is a jumbo loan, which follows different rules. Knowing which bucket your purchase falls into is one of the first things to figure out before you shop for a home in San Diego.
Why I pay attention to San Diego loan limits
I'm Peter Seroter. I've been in the mortgage business for 25 years, I'm based in North Phoenix, and I'm licensed in both Arizona and California. My brother lives in San Diego, so I spend a good amount of time there visiting him.
Every time I'm out there, I catch myself doing the same mental math. In North Phoenix, where I live, most purchases land comfortably under the national baseline loan limit. In San Diego, the median single-family home price has been sitting above $1 million in 2026. That one difference changes almost everything about how a loan gets structured. A buyer who would get a plain-vanilla conforming loan in Phoenix might need a high-balance or jumbo loan for a similar house in San Diego.
That's why loan limits are the first thing I explain to anyone buying in San Diego County.
2026 conforming loan limits for San Diego County
Each year, the Federal Housing Finance Agency (FHFA) sets the maximum loan size that Fannie Mae and Freddie Mac will buy. High-cost counties get higher limits. San Diego County is one of them.
Property type | 2026 San Diego County limit |
|---|---|
1 unit | $1,104,000 |
2 units | $1,413,350 |
3 units | $1,708,400 |
4 units | $2,123,100 |
For comparison, the 2026 national baseline for a one-unit home is $832,750, and the ceiling for the highest-cost areas in the country is $1,249,125. San Diego sits in between.
One important note: these limits apply to the loan amount, not the purchase price. A buyer can purchase a home priced above $1,104,000 and still use a conforming loan, as long as the amount they borrow stays at or below the limit.
Conforming vs. high-balance vs. jumbo: what's the difference?
Standard conforming loans
These are loans at or below the national baseline. They follow Fannie Mae and Freddie Mac guidelines and generally have the widest range of lender options and the most flexible requirements.
High-balance conforming loans
High-balance loans fall between the national baseline and the San Diego County limit. They still follow agency guidelines, which is good news for buyers. That said, pricing on high-balance loans can differ from standard conforming loans, and some program features may be slightly more restrictive. This is where shopping multiple lenders really matters.
Jumbo loans
Once your loan amount goes above $1,104,000 for a single-family home, you're in jumbo territory. Jumbo loans aren't purchased by Fannie Mae or Freddie Mac, so each lender sets its own guidelines. Expect closer review of credit, income, and assets, and often larger cash reserve requirements. The upside is that jumbo programs vary a lot from lender to lender, so there's real room to find a better fit.
The strategy: staying under the limit when it makes sense
Think of it like a D-backs pitcher working the edge of the strike zone. Sometimes the smartest move is to stay just inside the line rather than go over it.
For a buyer whose loan amount would land just above the San Diego limit, there are a few common ways to bring it back into conforming territory:
Adjusting the amount you bring to closing so the loan stays at or below $1,104,000.
Negotiating the purchase price or using seller concessions where the program allows.
Comparing a conforming loan to a jumbo loan side by side. In some cases a jumbo loan actually prices well, so it's worth running both.
There's no single right answer. It depends on your cash, your income, and your long-term plans. The point is to make the decision on purpose, with real numbers in front of you.
What about 2-4 unit properties?
San Diego's multi-unit limits are much higher, up to $2,123,100 for a four-unit property. For buyers who want to live in one unit and rent the others, that can open the door to conforming financing on a property that would otherwise require a jumbo loan. Owner-occupied multi-unit purchases come with their own guidelines around reserves and how rental income is counted, so plan ahead.
Why a broker helps with high-balance and jumbo loans
As an independent mortgage broker, I have access to more than 180 wholesale lenders. High-balance and jumbo pricing can vary quite a bit from one lender to the next, so comparing options across many lenders is one of the most valuable things I can do for a San Diego buyer. I also personally handle every file from start to finish, which matters on larger loans where documentation gets more detailed.
If you're new to the San Diego market, start with my San Diego County buyer's guide for the bigger picture.
San Diego loan limit FAQs
What is the 2026 conforming loan limit in San Diego County?
$1,104,000 for a one-unit home. Limits are higher for 2-4 unit properties.
What is a high-balance loan?
A conforming loan whose amount is above the national baseline of $832,750 but at or below the county limit. In San Diego, that's the range up to $1,104,000 for a single-family home.
Can I buy a home over $1.1 million without a jumbo loan?
Yes, if your loan amount stays at or below the limit. The limit applies to how much you borrow, not the price of the home.
Are jumbo loans harder to qualify for?
They usually involve closer review of credit, income, and assets, plus larger reserve requirements. Guidelines vary by lender, which is why comparing options matters.
Buying in San Diego County?
Let's figure out whether conforming, high-balance, or jumbo fits best. I'll compare options across 180+ wholesale lenders.
Data sources: FHFA 2026 conforming loan limits as summarized by JVM Lending and Experian; San Diego County median price from California Association of Realtors data reported by KPBS (July 2026). Figures change annually and monthly.
Peter Seroter / Optimized Home Loans | Powered by Barrett Financial Group
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