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San Mateo's housing market demands jumbo financing for most single-family homes. Conforming loan limits don't cover what typical properties cost here.
As of February 2026, jumbo rates hover around 6%, reflecting the Fed's cautious stance on cuts. Most San Mateo buyers need loans well above the $832,750 conforming limit.
We're seeing steady demand for jumbo products despite rate uncertainty. Buyers with strong profiles still lock in financing for properties ranging from $1.5M to $5M+.
Lenders want 700+ credit scores for competitive jumbo rates. You'll see better pricing at 740+, and top-tier rates start at 760.
Expect to put down 20% minimum, though 30% gets you better terms. Cash reserves matter—most lenders require 12-18 months of mortgage payments in the bank.
Debt-to-income ratios max out at 43% for most jumbo programs. Income documentation is stricter than conforming loans, especially for self-employed borrowers.
Not all wholesale lenders offer competitive jumbo programs. We work with about 40 lenders who actively price San Mateo jumbos, each with different appetites for loan size and property type.
Portfolio lenders often beat agency pricing on large loans. Some specialize in properties above $3M, others excel at investor jumbos with lower down payments.
Rate spreads between lenders can hit 0.5% on the same profile. Shopping this across our network typically saves borrowers $200-400 monthly on a $2M loan.
San Mateo jumbo buyers often qualify for better terms than they think. We've closed loans for borrowers who assumed they needed perfect credit but got approved at 710.
Timing matters with current rate volatility. Lock when you find a rate that works for your budget—waiting for cuts later in 2026 means risking the home you want today.
Consider ARM products if you plan to move within 7-10 years. Many San Mateo buyers upgrade properties, and a 7/1 ARM typically prices 0.375-0.5% below fixed jumbos.
Conforming loans cap at $832,750 for San Mateo County. Anything above that automatically pushes you into jumbo territory with different underwriting.
Jumbo rates currently run 0.25-0.5% higher than conforming, though this gap narrows with strong credit. The tradeoff is higher loan amounts without mortgage insurance.
Interest-only jumbos appeal to high-income earners who want lower initial payments. We structure these for tech professionals expecting equity compensation or business owners with variable income.
San Mateo's proximity to tech hubs means many jumbo borrowers have stock compensation. Lenders treat RSUs and options differently—some count them at 100%, others discount them.
Property types matter for jumbo approval. Single-family homes in established neighborhoods get better pricing than condos or properties in newer developments.
We see strong jumbo activity from tech workers relocating from San Francisco. They're used to high prices but surprised that San Mateo often requires larger loans than SF condos.
Anything above $832,750 is jumbo for San Mateo County. Most single-family homes here require jumbo financing given typical property values.
No, jumbo loans never require PMI regardless of down payment. This is one advantage over conforming loans with less than 20% down.
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.
20% down is standard, though 30% improves your rate and approval odds. Some portfolio lenders offer 15% down for excellent credit.
Yes, typically 0.25-0.5% higher as of February 2026. Rates vary by borrower profile and market conditions.
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