$19,500,000
ActiveListing provided by Allison W. Trull, Coldwell Banker Bain
5
Beds
8
Baths
7,858
Sq Ft
5
DOM
About this property.
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.
Property details.
Features.
Interior
Exterior
Heating
Cooling
Flooring
View
Waterfront
Site Features
Agent information.
Schedule a Showing
Pick a day and time, and Austin will follow up to confirm.
By continuing, you consent to be contacted by Welcome to Whatcom and John L. Scott - Bellingham about this showing via call, text, or email.
Listed by: Allison W. Trull, Coldwell Banker Bain
Courtesy of Coldwell Banker Bain
Source: NWMLS, MLS#: 2537113
Listing data deemed reliable but not guaranteed. Based on information submitted to the MLS GRID as of 06/15/2026, 02:30:07 PST. 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. Provided by NWMLS as distributed by MLS Grid.
IDX information is provided exclusively for consumers' personal, noncommercial use. It may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. The data is deemed reliable but is not guaranteed by MLS GRID.
Any use or search of data on this website, other than by a consumer looking to purchase real estate, is prohibited.
Listed by Allison W. Trull, Coldwell Banker Bain
$19,500,000
Active6333 77th Avenue SE, Mercer Island, WA 98040
5
Beds
8
Baths
7,858
Sq Ft
0.48
Lot Acres
2025
Year Built
5
Days on Market
About This Property
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.
Property Details
Features
Interior
Exterior
Heating
Cooling
Flooring
View
Waterfront
Site Features
Agent Information
Schedule a Showing
Pick a day and time, and Austin will follow up to confirm.
By continuing, you consent to be contacted by Welcome to Whatcom and John L. Scott - Bellingham about this showing via call, text, or email.
Listed by: Allison W. Trull, Coldwell Banker Bain
Courtesy of Coldwell Banker Bain
Source: NWMLS, MLS#: 2537113
Listing data deemed reliable but not guaranteed. Based on information submitted to the MLS GRID as of 06/15/2026, 02:30:07 PST. 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. Provided by NWMLS as distributed by MLS Grid.
IDX information is provided exclusively for consumers' personal, noncommercial use. It may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. The data is deemed reliable but is not guaranteed by MLS GRID.
Any use or search of data on this website, other than by a consumer looking to purchase real estate, is prohibited.