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Olivia Hsu Decker

Olivia Hsu Decker
Real Estate Agent (Salesperson)
Belvedere Tiburon CA

Salesperson (CA: 00712080)

47 years experience

REALTOR® 4 Active Listings Serves Marin County, CA
View on Realtor.com

Contact Information

Brokerage
Golden Gate Sotheby's International Realty

Office Website
Office Address
10 Beach Rd
Belvedere Tiburon, CA  94920
(Marin County)
Office Phone
415-435-0700
Office Fax
414-435-5185
Mobile
415-435-0700
Email
oliv**@*********************.com
Show Email for $5
Website

About Olivia Decker

Olivia Hsu Decker, a prominent figure in the luxury real estate market, has garnered significant recognition throughout her career. The Wall Street Journal highlighted her as a top choice for selling high-end properties, while the San Francisco Chronicle referred to her as one of the most recognized residential real estate brokers in the nation.

Born in Shanghai, China, Olivia's diverse upbringing spanned across Hong Kong, Taiwan, Italy, and France before she settled in San Francisco in 1975. She is the co-owner of Golden Gate Sotheby's International Realty, which boasts 26 offices across the San Francisco Bay Area, from Silicon Valley to Napa Valley, covering 16 cities in between.

Olivia's expertise in luxury real estate dates back to 1979. In the 1980s, she distinguished herself as the top agent at Merrill Lynch Realty, ranking first among 16,500 sales associates nationwide. She furthered her education with an international real estate study at the University of Oxford in 1990 and co-founded Decker Bullock Realty with Bill Bullock in 1991. In 2007, she acquired the Sotheby's International Realty franchise and rebranded it as Golden Gate Sotheby's International Realty. Today, her firm ranks fourth among Sotheby's International Realty affiliates globally, achieving a sales volume of $5.91 billion in 2020.

Throughout her career, Olivia has successfully managed over $3.2 billion in property sales, leveraging her unique sales acumen and extensive connections with affluent clients. By combining the global reach of Sotheby's International Realty with her own vast network, she consistently pairs exceptional homes with discerning buyers.

In addition to her real estate endeavors, Olivia is an active investor, having owned, restored, and sold notable properties such as Château de Grimaldi in Aix-en-Provence and Château de Villette in Paris. She currently owns four luxury residences in Belvedere and London.

Her expertise has been featured in more than 50 publications, including The Wall Street Journal, The New York Times, and Bloomberg News, as well as on major news outlets like CNN and ABC News Nightline. Olivia is a sought-after speaker at various luxury real estate conferences globally, including the China International Luxury Property Show and the Monaco Wealth Forum.

Olivia is a member of Who's Who in Luxury Real Estate and Haute Residence, and she has served on the Board of Directors of the San Francisco Opera Guild since 1995. She is also a long-standing member of the Corinthian Yacht Club and the Board of Directors of Festival Napa Valley. Additionally, she is the owner and publisher of Haute Living San Francisco, a luxury lifestyle magazine that highlights philanthropic events and industry leaders. For more insights, visit www.HauteLivingSF.com.

Marin County, CA Real Estate Market Analysis (Single Family Homes)

$2,679,784
Avg. Listing Price
From Olivia's portfolio
3.6 / 3.0
Avg. Beds/Baths
Typical property size
2,548 sf
Avg. Square Footage
Interior living space
349
Active Listings
Current inventory

Marin County's real estate market stands as one of California's most exclusive and geographically diverse property landscapes, where million-dollar homes nestle against rolling hills and waterfront communities command premium prices. This affluent market north of San Francisco attracts buyers seeking luxury living with natural beauty, creating a unique ecosystem where properties routinely sell for well above state averages and inventory remains perpetually tight.

The county's 1,632 total actively licensed agents serve a sophisticated clientele across dramatically different terrain, from Tiburon's waterfront estates to Mill Valley's wooded enclaves. What makes this market particularly interesting is how these 1,632 agents with email connectivity have adapted to serve both tech executives seeking modern amenities and families prioritizing top-rated schools, all while navigating some of California's most complex zoning regulations and environmental constraints.

Major Marin County, California Real Estate Markets

San Rafael anchors the county as its largest city and commercial hub, offering relatively more affordable options while still maintaining Marin's signature quality of life. The city's diverse neighborhoods range from charming Craftsman homes in the Gerstle Park area to newer developments near the civic center, making it a focal point for first-time Marin buyers and those seeking urban conveniences without San Francisco price tags.

Mill Valley and Sausalito represent the county's premium waterfront and hillside markets, where properties regularly exceed $2 million and buyers compete for homes with Golden Gate Bridge views or redwood grove settings. Meanwhile, Novato in the north provides the county's most family-oriented market, featuring newer construction and larger lots that appeal to buyers prioritizing space and value within Marin's prestigious school districts.

Market Dynamics and Geographic Complexity

Marin County's real estate dynamics are heavily influenced by its geographic constraints, with hillsides, wetlands, and open space preserves limiting developable land and maintaining artificial scarcity. This creates micro-markets where a property's elevation, view corridor, or proximity to hiking trails can dramatically impact values, requiring agents to possess intimate knowledge of neighborhood-specific factors that don't exist in more uniform markets.

The market also experiences unique seasonal patterns driven by both school calendars and weather, as many buyers time purchases around the acclaimed Marin school system while sellers capitalize on the county's stunning spring and summer landscapes. Fire risk in hillside areas and flood considerations in low-lying regions add additional complexity layers that sophisticated buyers expect their agents to navigate expertly.

Why Businesses Need Marin County, California Agent Contact Data

Companies serving the luxury home market find Marin County agents invaluable for reaching high-net-worth clients who invest heavily in premium home services, from custom landscaping to smart home technology. These agents regularly work with clients whose home improvement budgets exceed most people's annual salaries, making them crucial referral sources for businesses offering high-end residential services.

The county's agent network also provides unique access to environmentally conscious consumers who prioritize sustainable building materials, solar installations, and eco-friendly home solutions. Given Marin residents' strong environmental values and substantial disposable income, businesses offering green products or services find these agent relationships particularly profitable for generating qualified leads and premium project opportunities.

Current Property Listings

As of 2/17/2026, Olivia Decker has 4 properties for sale in Belvedere Tiburon and surrounding areas.

$25,950,000

Listed 2025-10-07

46 Cliff Rd
Belvedere, CA  94920

Beds: 4.0
Baths: 4.5
Sq Ft: 5,099
Lot: 16,601 sf
Single Family Map
View Full Details

$24,900,000

Listed 2025-03-13

1 Blanding Ln
Belvedere, CA  94920

Beds: 4.0
Baths: 5.5
Sq Ft: 4,996
Lot: 15,838 sf
Single Family Map
View Full Details

$7,880,000

Listed 2024-05-29

Paradise Gln
Tiburon, CA  94920

Beds:
Baths:
Sq Ft:
Lot: 1,136,916 sf
Land Map
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$22,888,000

Listed 2026-02-09

445 Belvedere Ave
Belvedere, CA  94920

Beds: 4.0
Baths: 5.5
Sq Ft: 8,131
Lot: 29,094 sf
Single Family Map
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Current Property Rentals

As of 2/17/2026, Olivia Decker has the following rental properties available in Belvedere Tiburon and surrounding areas.

$19,500

Listed 2025-10-30

55 W Shore Rd
Belvedere, CA  94920

Beds: 3.0
Baths: 3.0
Sq Ft: 2,846
Lot: 10,080 sf
Single Family Map
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$28,000

Listed 2025-11-20

408 Golden Gate Ave
Belvedere, CA  94920

Beds: 4.0
Baths: 5.5
Sq Ft: 4,890
Lot: 17,424 sf
Single Family Map
View Full Details