$19,500,000
Est. $98,808/mo5 bd•2 ba•7,858 sq ft
6333 77th Avenue Se, Mercer Island, WA 98040
• Listed 2026-06-09•3 days on market
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Based on information submitted to the MLS GRID as of June 10, 2026 at 05:02am (date and time MLS GRID Data was obtained). All data is obtained from various sources and may not have been verified by broker or MLS GRID. Supplied Open House Information is subject to change without notice. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information.
Listing information courtesy of Northwest Multiple Listing Service (NWMLS). The listing data relating to real estate for sale on this web site comes in part from the Northwest Multiple Listing Service. Real estate listings held by brokerage firms other than RexMont Real Estate are marked with the “Listing courtesy of NWMLS” designation. Information provided is for the consumer's personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing.
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An artisanal masterpiece designed to elevate everyday living and a love for the lake. Designed by Studio McGee and built by Lochwood-Lozier Custom Homes, this waterfront estate occupies a coveted position along Mercer Island’s Gold Coast, capturing all-day sun, western sunsets, and views across Lake Washington to Seward Park. Set on 86 feet of street-to-water frontage, the property features level lawn to the water’s edge, a private swim cove, sports court, and new Seaborn dock with power, water, lighting and lift ready infastructure. From afternoons on the dock to evenings watching boats drift across the lake, the home embodies waterfront living. The Traditional Heritage architecture embraces Calcutta marble, white oak herringbone and wide-plank floors, custom millwork, copper accents, and natural stone. Michelin level entertaining kitchen with hidden scullery and working pantry anchors the home for dinners or large scale events. The primary suite offers a sanctuary with custom boutique level dressing room, while a wellness retreat includes a fitness studio, sauna, and lakeside bath. A chilled glass wine gallery, library, dual offices, bonus spaces, and en-suite bedrooms provide flexibility. Covered heated outdoor rooms, outdoor kitchen, Crestron automation, solar, Generac backup power, and three-car garage complete this legacy estate on one of Mercer Island’s sought-after stretches of waterfront.
Listed by Allison W. Trull • Coldwell Banker Bain
Listing updated: June 10, 2026 at 05:02am
RexMont checked: moments ago
Source: NWMLS as Distributed by MLS Grid #2537113
Open houses
Nearby open houses (8)
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Open Sun, Jun 14
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Open Sun, Jun 14$18,953,000
-$547,000 under list price
Nearby comparable homes
RexMont uses 5 strongest recent nearby sales, priced between $10.4M and $25M.
Rental earnings
$56,850/mo
Screening estimate from the comp-supported value. Verify with rent comps before underwriting.
$15,850,000Last sold price
7374 Se 71st Street, Mercer Island, WA 98040
$11,525,000Last sold price
9626 Se 34th Street, Mercer Island, WA 98040
Estimate is a comp-supported screen, not an appraisal or broker price opinion. Ask RexMont for a property-specific pricing review before writing or accepting an offer.
6333 77th Avenue Se, Mercer Island, WA 98040
Estimates only and not guaranteed. Consult a RexMont agent for accurate, personalized guidance before making an offer. RexMont OfferEdge™ · © 2026 RexMont Real Estate. Proprietary tool.
Neighborhood mobility
$110,137 per month
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Mercer Island is a seller's market.
Inventory is low and competition is high. Sellers have more negotiating power.
Offer insight: Well-priced homes draw multiple offers; others sell close to asking.
List to sale price: The average home sells for about 1% below list price.
Time on market: The average home goes pending in around 9 days.
$2,700,000 Sold
2 weeks ago
4 bd•2.5 ba•~3,920 sq ft•Single Family
7830 80th Place Se, Mercer Island, WA 98040
4%
Under list
—
Days on market
1.0 mi
Distance
$15,850,000 Sold
5 weeks ago
5 bd•2.5 ba•~6,510 sq ft•Single Family
7374 Se 71st Street, Mercer Island, WA 98040
4%
Under list
—
Days on market
0.4 mi
Distance
$7,800,000 Sold
5 weeks ago
4 bd•2.5 ba•~5,050 sq ft•Single Family
16 Meadow Lane, Mercer Island, WA 98040
0%
Over list
—
Days on market
0.5 mi
Distance
$2,683,000 Sold
5 weeks ago
4 bd•2.5 ba•~3,980 sq ft•Single Family
8021 Se 57th Street, Mercer Island, WA 98040
3%
Over list
—
Days on market
0.4 mi
Distance
$2,995,000 Sold
5 weeks ago
5 bd•3 ba•~3,694 sq ft•Single Family
8910 Se 54th Street, Mercer Island, WA 98040
0%
Over list
—
Days on market
0.9 mi
Distance
Closed sales from MLS GRID / NWMLS within the past 6 months, matched on property type and within 1 mile. Comps approximate.
Want a deeper read on this market?
Ask a RexMont agentMarket data from MLS GRID / NWMLS · Updated Jun 2026
Mercer Island School District
Assigned schools for this property per the listing's MLS data. School district boundaries change — verify the exact assigned schools with the district before purchasing.
