PROPERTIES FOR SALE

6333 77th Avenue SE Mercer Island, WA 98040

NWMLS Courtesy of Coldwell Banker Bain
6333 77th Avenue SE
Mercer Island, WA 98040
$19,500,000
Residential
5 Beds
5.75 Baths
7858 SqFt
Active
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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.

Property Features

Community: West Mercer
2 Stories w/Bsmnt
View: Lake
View: Territorial
Waterfront: Low Bank
Cable TV
Deck
Dock
Electric Car Charging
Fenced-Partially
Gas Available
High Speed Internet
Irrigation
Moorage
Patio
Sprinkler System
Bus Line Nearby: Yes
Exterior: Wood
Roof: Metal
Parking: Attached Garage
Year Built: 2025
2026 Taxes: $77449.00
Buyer Broker Comp.: 2%
Listing #: 2537113

Lot Details

Lot Size: 0.48 acres
Paved

Appliances That Stay

Dishwasher
Disposal
Double Oven
Dryer
Microwave
Refrigerator
Stove(s)/Range(s)
Trash Compactor
Washer

Interior

Second Kitchen
Bath Off Primary
Ceiling Fan(s)
Dining Room
Fireplace
High Tech Cabling
Hot Tub/Spa
Pantry
SMART Wired
Sauna
Security System
Sprinkler System
Vaulted Ceiling(s)
Walk-In Closet(s)
Water Heater
Wet Bar
Wine Cellar
Wired for Generator
Dbl Pane/Storm Window
Cooling:
Heating: Forced Air
Natural Gas
Fireplaces: 2

Community Features

CCRs

Schools

District: Mercer Island
Elem: Lakeridge Elem
Middle: Islander Mid
High: Mercer Isl High
Call or Email:
Grace Wamwere

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Information is based on data available to the associate, including county records. The information has not been verified by the associate and all information presented should be verified by the buyer. Listings are provided by Northwest Multiple Listing Service as distributed by MLS GRID. The associate represented on this web site is not a multiple listing service but is a member of a local MLS.
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