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Provided by NWMLS, Listed by Allison W. Trull, 425-454-0470 at Coldwell Banker Bain
5 Beds
8 Baths
7,858 sqft

$19,500,000

6333 77th Avenue SE, Mercer Island WA, 98040

Price per sqft$2,481.55
Built in2025
Property size7,858 sqft
Property typeResidential

Overview

Active

Listed Jun 9, 2026

Updated 4 weeks ago

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.

$129,734/mo

Est. mortgage payment based on a $19,500,000 home price.

All estimates are provided by Luxury Presence for informational purposes only. Actual amounts may vary.

Additional information

MLS® ID
2537113

Interior Features

Bedrooms
5
Bathrooms
8
Fireplace
Yes
Cooling
Yes
Heating
Yes
Basement
Yes

Exterior Features

Lot Size
0.48 Acres

Other Property Details

Taxes
$77,449
Tax Frequency
Annually
Garage
Yes
View
Yes
Waterfront
Yes
55+/Senior Community
No
MLS provider logo

Provided by NWMLS, Listed by Allison W. Trull, 425-454-0470 at Coldwell Banker Bain

The IDX display presents information sourced from the Northwest Multiple Listing Service as of 9/16/2026. The data is intended for personal, non-commercial use and should not be used for any other purpose except to identify potential properties for purchase. While the MLS data displayed is generally deemed reliable, it is NOT guaranteed to be accurate by the MLS. Buyers are responsible for verifying the accuracy of all information and are advised to conduct their own investigations or seek professional assistance. Other sources besides the Listing Agent may have contributed to the MLS data presented. Unless expressly specified in writing, the Broker/Agent has not confirmed any information obtained from external sources. The Broker/Agent may or may not have acted as the Listing and/or Selling Agent and cannot guarantee the accuracy of property locations displayed on any map. The property locations displayed on any map are merely best approximations and exact locations should be independently verified. Based on information submitted to the MLS GRID as of 9/16/2026 at 5:09 AM UTC . 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.

©2026 Northwest Multiple Listing Service all rights reserved.

Data last updated on 9/16/2026 at 5:09 AM UTC 

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