Imagine a serene waterfront city where some of the world’s richest and most influential people call home. Medina, Washington, is exactly that place—a hidden gem nestled on the shores of Lake Washington. This exclusive enclave boasts sprawling estates, lush greenery, and panoramic views of the Seattle skyline and majestic mountains. It’s no surprise that billionaires like Bill Gates and Jeff Bezos have chosen Medina as their sanctuary.
Among these elite residents stands Jim Sinegal, the co-founder of Costco, whose $38 million mansion is a stunning testament to his success. While Sinegal is known for his humble leadership style and frugal business approach, his Medina estate reveals a different side of him. This luxurious house retreat blends comfort, privacy, and breathtaking natural beauty.
Medina: Billionaire Enclave
Neighborhood Overview
Medina is a small city located on the eastern shore of Lake Washington. It’s famous for its sprawling waterfront estates, many of which boast private docks, lush gardens, and stunning views. The lots here typically range from 2 to 5 acres, with waterfront stretches between 100 and 300 feet.
This exclusive neighborhood is home to some of the world’s wealthiest individuals, including Bill Gates, Jeff Bezos (who previously owned property here), and, of course, Jim Sinegal. The area is known for its tranquility, security, and natural beauty, making it a coveted address for billionaires seeking privacy without sacrificing convenience.
Here’s a quick comparison between Medina’s averages and the Jim Sinegal house:
FeatureMedina AverageJim Sinegal House
Lot Size 2-5 acres ~2 acres
Waterfront 100-300 ft 150+ ft
Home Value $20M+ $38M
Neighbors’ Gates, Bezos, Adjacent Estates
Why Medina for Elites?
What draws billionaires to Medina? It’s more than just the waterfront views and sprawling estates. The city offers:
- Privacy: Gated properties and discreet neighbors ensure peace.
- Natural Beauty: Springs, waterfalls, and mature trees create a serene environment.
- Proximity: Just minutes from downtown Seattle, it’s close enough for business but far enough for relaxation.
- Community: A neighborhood of like-minded, successful individuals fosters a unique social atmosphere.
The Sinegal Medina estate fits perfectly into this elite enclave, offering all these benefits and more.
Exterior and Property Features
Landscaping and Approach
The Jim Sinegal house sits on just over an acre of meticulously landscaped grounds. The property features:
- Lush greenery: Mature trees and manicured gardens create a private oasis.
- Sport court: Perfect for casual games or exercise.
- Oversized patios: Ideal for hosting gatherings or enjoying quiet moments outdoors.
The driveway welcomes guests with a sense of understated grandeur. Invisible retaining walls blend seamlessly into the landscape, while natural waterfalls add a soothing soundtrack to the approach.
Waterfront Access
One of the standout features of the Costco founder’s mansion is its direct access to Lake Washington. A private tram system transports residents and guests to a secluded dock, where boats can be safely moored.
From here, you get sweeping 180-degree views of the lake, the surrounding mountains, and the Seattle skyline. Augercast pilings ensure the dock’s stability. Augercast pilings ensure the dock’s stability, a modern engineering solution that withstands the lake’s shifting conditions.
This combination of luxury and practicality makes the Sinegal Medina estate a true waterfront paradise.
Inside Jim Sinegal’s House: Ground Floor
Entry and Common Areas
Step inside, and you’re greeted by the warmth of Georgian heart pine floors and the charm of exposed beamed ceilings. The living spaces feature river-rock fireplaces that add rustic elegance and a cozy ambiance.
Walls of windows flood the rooms with natural light and frame stunning views of Medina’s landscape and distant mountains. Every corner of the ground floor is designed to connect indoor comfort with outdoor beauty.
Kitchen and Entertaining Spaces
The kitchen is a chef’s dream, perfectly suited for a man who built a retail empire on bulk buying and entertaining. It boasts:
- Commercial-grade appliances: Durable and high-performance for large-scale cooking.
- Custom cabinetry: Crafted for both style and function.
- Island seating: A casual spot for family and guests to gather.
- View patios: Doors open to expansive patios, perfect for summer parties.
Here’s a quick look at the key rooms on the ground floor:
RoomKey Features
Kitchen Pro appliances, island seating
Living Room River rock fireplace, lake views
Patio Oversized, summer gathering hub
The design balances luxury with livability, making it ideal for both quiet family evenings and lively social events.
Upper Levels and Private Quarters
Bedrooms and Baths
The upper floors of the Sinegal Medina estate offer multiple en-suite bedrooms, each designed with comfort and privacy in mind. The primary suite is a standout, featuring panoramic views of Lake Washington and the surrounding hills.
Additional rooms can serve as guest suites or be converted into media rooms, offices, or hobby spaces, depending on the owner’s needs.
Art and Collection Spaces
Jim Sinegal is rumored to have a passion for art and vintage cars, including a prized collection of Ferraris. This interest aligns with his neighbor Jon Shirley’s tastes, whose 27,000-square-foot mansion doubles as an art and car gallery.
While the Costco founder’s mansion maintains a refined elegance, it also offers spaces to showcase personal collections, blending lifestyle with legacy.
Luxury Amenities and Tech
Outdoor and Recreation
The estate’s outdoor amenities are designed for both relaxation and activity:
- Sport court: For tennis, basketball, or other sports.
- Fitness center: A private gym to stay in shape year-round.
- Fire pits: Cozy spots for evening gatherings under the stars.
These features reflect the trend in Medina luxury homes of combining recreation with comfort.
Smart Home Features
The mansion is equipped with state-of-the-art technology, including:
- Custom-built systems: Designed by commercial contractors for seamless integration.
- Designer lighting: Adjustable to set the perfect mood.
- Security alarms: Ensuring privacy and safety in this billionaire neighborhood.
- Tram system: A unique feature providing easy access to the waterfront.
These smart features make the Sinegal Medina estate not just beautiful but highly functional.
Lifestyle in Sinegal Medina Estate
Living in the Jim Sinegal Medina home means enjoying a blend of privacy, luxury, and community. The estate offers a peaceful retreat from the hustle of business life. Yet, it’s close enough to host high-profile events—such as fundraisers attended by political figures like Barack Obama.
Sinegal’s lifestyle reflects his business philosophy: success is earned through hard work and humility, but it’s also important to enjoy the rewards. For entrepreneurs and business leaders, the Costco founder’s mansion serves as a reminder that dedication can lead to extraordinary outcomes.
Comparable Medina Luxury Homes
To put the Sinegal Medina estate in perspective, here’s a quick look at some of its notable neighbors:
OwnerSq FtValueUnique Feature
Jon Shirley 27K $40M+ Art and car gallery
Jeff Bezos (past) Varies $50M+ Modern minimalist design
Pagones 6K N/A Guest house, lake views
These homes showcase the diversity and grandeur of Medina luxury homes, each with its own character and charm.
FAQs
1. Where is Jim Sinegal’s house located?
Jim Sinegal’s house is located in Medina, Washington, on the shores of Lake Washington.
2. What is the value of Jim Sinegal Medina’s home?
The mansion is valued at approximately $38 million.
3. Who are Jim Sinegal’s Medina neighbors?
His neighbors include Bill Gates and properties formerly owned by Jeff Bezos.
4. What are the key features of the Costco founder’s mansion?
Key features include a private waterfront tram, luxury flooring, expansive patios, and breathtaking lake views.
5. Can you visit the Sinegal Medina estate?
No, the estate is private and does not offer public tours.
Where Does Jim Sinegal Currently Live?
Jim Sinegal currently lives in Hunts Point, Washington,
Jim Sinegal house photo
