Mortgage Calculator: Bay Area Payments With Renovation Budget Built In

How to read your results

Principal & interest is set by your loan amount, rate, and term — the calculator's headline. Property tax is the line buyers underestimate: at Santa Clara County's ~1.18% effective rate, a $1.5M purchase adds roughly $1,475 every month, forever, and it's based on your purchase price thanks to Prop 13. Insurance estimates here are baseline; hillside and older homes can run higher. What the calculator deliberately excludes: PMI (applies under 20% down), HOA dues, and Mello-Roos in some newer developments — we flag all three in a financing review.

The renovation-budget slider is the strategy

Move-in-ready homes in Silicon Valley sell at a premium because every buyer can picture living there. Dated homes sell at a discount because most buyers can't price the fix. If you can finance the purchase and the renovation together — renovation loans, cross-collateralized HELOCs, or a post-close refinance — you buy the discount, build the premium, and own the spread. That's the scenario the slider models: the same monthly-payment math, with the construction budget inside the loan. Our brokerage finds the house, our construction team prices the remodel before you offer, and our lending desk structures the financing — one team, one accountable number.

Loan programs our desk structures

• Purchase mortgages — conforming, jumbo (most of Santa Clara County), FHA/VA where they fit.
• Renovation financing — renovation loans and HELOCs sized to a real construction budget, not a guess.
• ADU financing — HELOCs, cash-out refinances, and renovation products sized to ADU construction.
• Investor capital — DSCR loans and hard-money bridge lending (9–12%, 5–10 day closes) for flips and BRRRR.
• Refinances — rate/term and cash-out, including post-renovation refis that harvest the value you built.