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Open house Wed, Aug 19

$19,500,000

6333 77th Avenue

Mercer Island, WA 98040

Active
Low BankLake viewTerritorial view

Beds

5

Baths

8

Sq Ft

7,858

Lot

0.48 ac

Year built

2025

Type

Residential

Days listed

MLS #

2537113

About this home

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.

Interior features

Second KitchenBath Off PrimaryCeiling Fan(s)Dbl Pane/Storm WindowDining RoomFireplaceHigh Tech CablingHot Tub/SpaPantrySaunaSecurity SystemSMART WiredSprinkler SystemVaulted Ceiling(s)Walk-In Closet(s)Water HeaterWet BarWine CellarWine/Beverage RefrigeratorWired for Generator

Exterior features

Wood

Appliances

DishwasherDisposalDouble OvenDryerMicrowaveRefrigeratorStove(s)/Range(s)Trash CompactorWasher

Schools

Elementary

Lakeridge Elem

Middle

Islander Mid

High

Mercer Isl High

Property details

Heating
Forced Air
Cooling
Central Air
Flooring
Ceramic Tile, Hardwood, Marble, Stone
Parking
Attached Garage
View
Lake, Territorial
Lot
Paved
Water source
Public
Sewer
Sewer Connected
Style
Traditional
Levels
Two
Fireplaces
2

Costs

Price / sq ft
$2,482
Annual taxes
$77,449 (2026)

Estimate your monthly payment

$105,057/mo

Principal & interest
$98,603
Property taxes
$6,454
Loan amount $15,600,000

Estimate only — excludes homeowner's insurance and PMI. Rates shown are not a quote. Talk to us to connect with a lender.

Location

Mercer Island, WA 98040

Approximate location. Contact us to confirm the exact address.

Listing courtesy of Coldwell Banker Bain— Allison W. Trull.Listing data courtesy of the Northwest Multiple Listing Service (NWMLS). Information deemed reliable but not guaranteed and should be independently verified. All properties are subject to prior sale, change, or withdrawal.

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