Kathy Tai

Mosaik Real Estate

Looking to sell your property, buy a new home, or just need some expert real estate advice?

About
Kathy Tai is a San Francisco Bay Area Realtor® with Mosaik Real Estate, serving buyers, sellers, and investors across San Francisco, Atherton, Belmont, Brisbane, Burlingame, Colma, Daly City, East Palo Alto, Palo Alto, Foster City, Half Moon Bay, Hillsborough, Menlo Park, Millbrae, Pacifica, Redwood City, San Bruno, San Carlos, San Mateo, South San Francisco, and Woodside. In six years, she has closed over $100M in sales volume, helped more than 100 families, and is ranked in the top 1.5% of Realtors nationwide.

Kathy works most often with four types of clients: first-time homebuyers who want the process explained clearly and without pressure; first-time sellers navigating a listing for the first time; buyers and families relocating to the Bay Area for a new job, including many coming to tech and biotech companies on the Peninsula and in South San Francisco; and clients buying, selling, or investing in higher-end properties, including move-up purchases and 1031 exchanges.

Born and raised in San Francisco, Kathy brings deep local market knowledge to every transaction and is fluent in English and Mandarin, which she often uses with relocating and international clients. She's recognized as Best of Zillow and holds a 5.0 rating across her reviews, with clients and colleagues describing her as calm under pressure, straightforward, and thorough.

Her approach is transparent: she walks clients through the data, the tradeoffs, and the options so they can make decisions with confidence, not pressure. Whether it's a first purchase, a competitive offer, a relocation timeline, or a complex sale, Kathy keeps the process clear, structured, and manageable from start to finish.

Outside of real estate, Kathy enjoys fitness, travel, and good food, and is a proud dog mom to her Frenchie, Uni. She believes good representation should feel steady, informed, and well-executed, and she builds relationships with clients that last well past closing day.
Highlights *
66
Recent sales
$245K - $3.3M
Price range
$1.15M
Median price
6
Years experience

Recent Listings & Sales

Address Sold Date Sold Price Represented
1550 Technology Dr #3069
San Jose, CA 95110
10/9/2026 $515,000 Seller
530 Baden Ave
South San Francisco, CA 94080
10/9/2026 $1,350,000 Buyer
3940 Moulton Dr
San Bruno, CA 94066
10/7/2026 $1,450,312 Buyer
1741 S Norfolk St
San Mateo, CA 94403
10/2/2026 $1,626,226 Buyer
568 Madrone Ave
Sunnyvale, CA 94085
9/17/2026 $1,700,000 Buyer

Transaction History *

Seller Deals

Total Deals
25
Total Value
$24,832,300
Median Sale Price
$846,000
Price Range
$245K - $2.35M

Buyer Deals

Total Deals
41
Total Value
$54,647,735
Median Sale Price
$1,282,000
Price Range
$348K - $3.3M

Sales Volume Timeline

Kathy Tai’s production volume for the past 3 year period Q1 ’24 Q1 2024 (Jan 1–Mar 31, 2024): $4M Q2 ’24 Q2 2024 (Apr 1–Jun 30, 2024): $6.4M Q3 ’24 Q3 2024 (Jul 1–Sep 30, 2024): $6.5M Q4 ’24 Q4 2024 (Oct 1–Dec 31, 2024): $5.8M Q1 ’25 Q1 2025 (Jan 1–Mar 31, 2025): $3.6M Q2 ’25 Q2 2025 (Apr 1–Jun 30, 2025): $2.4M Q3 ’25 Q3 2025 (Jul 1–Sep 30, 2025): $5.7M Q4 ’25 Q4 2025 (Oct 1–Dec 31, 2025): $5.5M Q1 ’26 Q1 2026 (Jan 1–Mar 31, 2026): $2.3M Q2 ’26 Q2 2026 (Apr 1–Jun 30, 2026): $14M Q3 ’26 Q3 2026 (Jul 1–Sep 30, 2026): $16M Q1 2024 Total Sales $4M Q2 2024 Total Sales $6.4M Q3 2024 Total Sales $6.5M Q4 2024 Total Sales $5.8M Q1 2025 Total Sales $3.6M Q2 2025 Total Sales $2.4M Q3 2025 Total Sales $5.7M Q4 2025 Total Sales $5.5M Q1 2026 Total Sales $2.3M Q2 2026 Total Sales $14M Q3 2026 Total Sales $16M

Sales volume is shown for complete quarters only.

Ratings & Reviews
5.0 (31)

Reviewers say

Reviewers repeatedly describe Kathy as knowledgeable about the Bay Area market, responsive, patient, and professional. They appreciate her clear guidance, honest advice, and low-pressure approach, saying she helped make stressful buying and selling decisions feel more manageable.

Dennis K
Aug 1, 2026

I had a stellar experience working with Kathy as a first-time buyer. Before I was referred to her by my friend, I haven't felt that agents I tried to work with fully centered my needs during the search. All throughout, she was knowledgeable, patient, supportive, communicative, responsive, and most of all, real when it came to what I should expect from the market and pros/cons of every single choice. She took the time to learn my motivations and goals, and invested in my journey to navigate what is objectively a challenging and draining process. Touring homes with her really helped solidify my non-negotiables and preferences. On offer days, her preparation, communication and hustle allowed me to pivot quickly as needed, let my strategies play out, and put my best foot forward to always be competitive. The power of her network also helped with my financing and ultimately securing my home at a value that I can be thrilled about. At closing, she took accountability for a minor oversight by covering a fee which spoke volumes, and also surprised me with an amazing appliance gift. Overall, becoming a homeowner with her in my corner has been incredibly comforting, and I would highly recommend reaching out to her!

Zillow Verified

Shayne
South San Francisco, CA - Apr 15, 2026

Kathy and her team are the best in the bay. The one realtor I had before wasn’t transparent at all with the selling process and failed to keep me updated. While Kathy and her team, did not hesitate to update us when new information came about. They did everything in their power to get our house to close, through thick and thin. No matter what obstacle came about, Kathy was able to handle it swiftly. If you are stressed about selling your house, Kathy and her team will take the burden off your shoulders. Can’t say enough about Kathy and her team. Expect I wish we had found them earlier.

Source: Google

Gloria Ortega
Feb 23, 2026

Kathy was beyond pleasant to work with. For the San Francisco market, my price point was low and a parking space mandatory (far and few). While, other agents were not responsive, she did not hesitate to work with me. She is knowledgeable, patience, and knows how to negotiate a "killer deal"! I am so happy I met here and honestly will miss her now that the transition is complete. I will be recommending her to all my friends and grateful she helped me find my dream condo!

Zillow Verified

Sean
Feb 16, 2026

Working with Kathy was an incredible experience from start to finish. As first-time buyers, we were amazed by how quickly she helped us navigate the process—we went from our initial search to closing in just five weeks!
?She spent two weeks touring homes with us, and what impressed us most was her honesty. She never "pushed" a sale; instead, she focused on pointing out the pros and cons of each property and let us make our own informed decisions. Kathy is extremely professional and has a deep understanding of the market. In fact, the home we ended up buying was an off-market property that she found for us, which is a huge advantage in the competitive Bay Area market.
?If you want an agent who is patient, mature, and has the inside track on the best listings, I highly recommend Kathy!

Zillow Verified

Rae Ramos
Nov 15, 2025

Working with Kathy has been so great! My husband and I were moving back to the Bay Area and Kathy made the process fun and easy. We viewed so many homes and she was right there with me going through it all. She answered all of our questions and made sure that we were well prepared every time we wanted to make an offer. I would definitely recommend Kathy and her team to my friends and family!

Zillow Verified

Professional Info

Brokerage

Mosaik Real Estate
580 4th St
San Francisco, CA 94107

Licensed

Licensed REALTOR®
CA 02069294

Awards

  • Zillow 5 Star Agent
  • FastExpert 2025 Top Agent - San Mateo,CA
  • Top Producer 2022
  • $100M+ in sales
  • Top 1.5% nationwide

Specialties

  • First-time buyers
  • Luxury properties
  • Relocation

Languages

  • English
  • Mandarin Chinese

Hobbies

  • Animals
  • Family
  • Fitness & Exercise
  • Food & Cooking
  • Health & Wellness
  • Outdoor Activities
  • Travel

Top Cities *

San Francisco

  • 15 sales past 3 years
  • 13 days on market
  • $1.25M median price

San Mateo

  • 10 sales past 3 years
  • 25 days on market
  • $1.8M median price

Daly City

  • 5 sales past 3 years
  • 29 days on market
  • $1.26M median price

*Sales data is calculated based on transaction information available to Agent Pronto at the time of publishing and may not accurately reflect all transactions for a given agent.