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San Bruno sits in San Mateo County, where the median household income of $156,000 supports homes in the $1.2M range. The Bespoke mixed-use development approved downtown signals continued investment in the area.
ARMs start with lower initial rates than 30-year fixed mortgages. After the initial period, your rate adjusts based on market conditions and your loan's terms.
$1,249,125
Conforming limit (2026)
620
Minimum FICO for most lenders
5% to 20%
Typical down payment range
30-45 days
Time to close (standard ARM)
Adjustable Rate Mortgages (ARMs) in San Bruno
Most ARM lenders require a 620+ FICO score and 5% to 20% down. Your debt-to-income ratio typically needs to stay under 43% to 50%, depending on the lender.
San Mateo County's $156,000 median household income supports purchases up to the 2026 conforming limit of $1,249,125. Lenders verify income through recent tax returns and W-2s.
Local decision guide
Use this guide to connect adjustable rate mortgages (arms) eligibility, lender expectations, and local market factors before comparing payment options in San Bruno.
San Bruno sits in San Mateo County, where the median household income of $156,000 supports homes in the $1.2M range. The Bespoke mixed-use development approved downtown signals continued investment in the area.
ARMs start with lower initial rates than 30-year fixed mortgages. After the initial period, your rate adjusts based on market conditions and your loan's terms.
Most ARM lenders require a 620+ FICO score and 5% to 20% down. Your debt-to-income ratio typically needs to stay under 43% to 50%, depending on the lender.
California lenders offer ARMs through both retail banks and mortgage brokers. Brokers typically access multiple wholesale lenders, giving you more rate and term options.
ARM underwriting follows Fannie Mae and Freddie Mac guidelines for conforming loans. Expect 30 to 45 days from application to closing on a standard ARM.
ARMs make sense in San Bruno if you plan to sell or refinance within 5 to 7 years. The lower starting rate saves real money early on, but rate risk rises after the initial period.
Above $1,249,125, you'll need a jumbo ARM, which carries tighter underwriting and higher rates. For buyers staying long-term, a fixed rate removes the adjustment risk entirely.
A 30-year fixed mortgage locks your rate for the entire loan term. ARMs start lower but adjust after the initial period, adding uncertainty to future payments.
Fixed-rate buyers pay more upfront but know exactly what they'll owe each month. ARM borrowers get lower early payments but face potential increases down the road.
San Mateo's Bespoke development brings mixed-use retail and affordable housing downtown. That kind of investment signals confidence in the area's long-term value for homeowners.
Three San Mateo County school districts placed funding measures on the June ballot. Strong schools and infrastructure spending matter to buyers planning to stay for years.
An ARM starts with a lower rate that adjusts after the initial period. A fixed rate stays the same for 30 years. ARMs save money early but carry rate risk later.
Initial periods typically run 3, 5, 7, or 10 years. After that, your rate adjusts annually or semi-annually based on market conditions and your loan's index.
Yes. If rates drop or you want to lock in a fixed rate, refinancing is an option. Plan on 30 to 45 days and closing costs for a new loan.
Most lenders require a 620+ FICO. Stronger scores (740+) qualify for better rates and terms. Check with your lender for their specific minimums.
ARMs work best if you plan to sell or refinance within 5 to 7 years. First-time buyers staying long-term often prefer fixed rates for payment certainty.