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Meet Mario

Defined by Service & Expertise

Mario Mazzamuto is a black sheep that bootstrapped both his education and career. He dropped out of high school at the beginning of his 9th-grade year and began learning by doing in the building trades and in real estate.

Starting his first company at age 21, he is now running a thriving residential real estate company, is a full-time real estate investor, and house flipper and is the best selling Author, Speaker and Life Coach.

SF Bay Appraisals also works closely with realtors and brokers to help establish listing prices, home sellers to ensure they’re getting top dollar, and homebuyers to ensure they’re not overpaying for a new home. Mario knows the ribs of a house as only a builder can, and has the business acumen of someone who invests his own money in property.


I gave 5 stars. Appraiser's don't come any better. I have been in the real estate business over 5 years and Mario was professional. He used accurate comparable. He was timely Friendly to me as well as Seller. Respectful and because of his profession. And knowledge my transaction completed well. Thank you, Mario and Team.
Nola Cady
SF Bay Appraisal is a company with a very long history of outstanding service always professional in their approach. Over the past 10 years that I have been a REALTOR, I can always rely on an accurate appraisal, thorough and with realism. They have also given back to the community and they are highly respected in our profession.
David Kennedy
I have been using SF Bay Appraisals for years for all my real estate transactions. As a contractor who flips homes, I have used their appraisal to determine the value of a home for myself, the sellers and in some cases, the buyers I was working with would agree to the appraisal by Mario and his staff. If you want an honest appraisal with documentation to back it up, call SF Bay Appraisals.
Phyllis Fox




San Francisco Bay Appraisal Services
837 Arnold Drive Suite 210, Martinez, CA 94553

Deeper Understanding. Better Solutions

SF Bay Appraisals is a full-service real estate home appraisal business. Since 2005 we have been appraising residential homes in Martinez, Concord, Pleasant Hill, Walnut Creek, Contra Costa Counties. We are FHA approved and appraise all types of residential property types including single-family homes, townhouses, condominiums, & 2-4 multi-unit properties. Some of our appraisal services include appraisals valuations for, dissolution of marriage, retrospective date of death valuations, property tax reduction, trust administration, probate, estate planning, home mortgages, home sales, etc.