Built by Local Experts
Home Purchase Advisors was created with the help of licensed California Real Estate Brokers and General Contractors licensed by the CSLB who have lived and worked in Silicon Valley for decades. Our calculators are built with the same data and expertise they use when advising their own clients — not generic national averages scraped from the internet.
Why We Built This
Understanding that Silicon Valley is unique economically we wanted to help people with real data not generalized numbers you will get from google or ai. When you search for "roof replacement cost San Jose" or "closing costs Bay Area," most results give you national averages that are meaningless for Silicon Valley. A roof replacement in San Jose costs 30-40% more than the national average. Transfer taxes & closing cost vary by thousands of dollars between cities & counties. Who typically pays for escrow fees during a transaction also varies by county. Our tools account for these local differences so you get the best data possible.
Our Credentials
Real Estate Brokers
We gather intell, datapoints, and information from Real Estate Brokers licensed by the Department of Real Estate with 10+ years of experience in residential sales, investment properties, and client advisory in Santa Clara County, Alameda County, & Contra Costa County.
General Contractors
Our construction cost calculators are built with the help of California CSLB licensed general contractors specializing in residential construction, roofing, and home improvement projects throughout Silicon Valley.
How Our Calculators Work
Every calculator on this site uses locally-sourced data: property tax rates from County Assessor, CLTA title insurance rate tables, and contractor pricing based on real Bay Area project costs. We update our data in real time to reflect current market conditions.
Contact
Have questions about our calculators or need personalized advice for your Bay Area real estate sale or construction project? Get in touch.