Question 1

What loan amount triggers jumbo financing in San Mateo?

Accepted Answer

Anything above $806,500 is jumbo for San Mateo County. Most single-family homes here require jumbo financing given typical property values.

Question 2

Do jumbo loans require mortgage insurance?

Accepted Answer

No, jumbo loans never require PMI regardless of down payment. This is one advantage over conforming loans with less than 20% down.

Question 3

What credit score do I need for a jumbo loan in San Mateo?

Accepted Answer

Most lenders want 700 minimum, but competitive rates start at 740. We've closed jumbo loans with scores as low as 680 for strong borrowers.

Question 4

How much should I expect to put down on a San Mateo jumbo loan?

Accepted Answer

20% down is standard, though 30% improves your rate and approval odds. Some portfolio lenders offer 15% down for excellent credit.

Question 5

Are jumbo rates higher than conforming loan rates?

Accepted Answer

Yes, typically 0.25-0.5% higher as of February 2026. Rates vary by borrower profile and market conditions.

Question 6

Can I use stock compensation to qualify for a jumbo loan?

Accepted Answer

Yes, most lenders accept RSUs and stock options. Treatment varies—some count 100%, others discount based on vesting schedule and volatility.

Jumbo Loans in San Mateo: Finance High-Value Properties Above Conforming Limits