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$19,500,000

  • For Sale
  • Active
  • Single Family
  • 5 Beds
  • 1 Full Bath
  • 7 Partial Baths
  • 7,858 Sq. Ft.
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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.

Full Property Details for 6333 77th Ave SE

General

  • Price: $19,500,000
  • Taxes: $77,449 (2026)
  • Status: Active
  • Type: Single Family
  • Source: NWMLS
  • MLS ID: 2537113
  • Updated: 6/12/2026
  • Added to Site: 77 day(s) ago

Interior

  • Interior Features: Second Kitchen, Bath Off Primary, Ceiling Fan(s), Dbl Pane/Storm Window, Dining Room, Fireplace, High Tech Cabling, Hot Tub/Spa, Pantry, Sauna, Security System, SMART Wired, Sprinkler System, Vaulted Ceiling(s), Walk-In Closet(s), Water Heater, Wet Bar, Wine Cellar, Wine/Beverage Refrigerator, Wired for Generator
  • Fireplace: Yes
  • Number of Fireplaces: 2
  • Fireplace(s): Gas
  • Appliances: Dishwasher(s), Double Oven, Dryer(s), Garbage Disposal, Microwave(s), Refrigerator(s), Stove(s)/Range(s), Trash Compactor, Washer(s)
  • Flooring: Ceramic Tile, Hardwood, Marble, Stone

Rooms

Bathrooms

  • Total Bathrooms: 8
  • Full Bathrooms: 1
  • 3/4 Bathrooms: 5
  • Half Bathrooms: 2
  • Upper - Full Baths: 1
  • Upper - 3/4 Baths: 3
  • Main Floor Baths: 1
  • Main - 1/2 Baths: 1
  • Lower - 3/4 Baths: 2
  • Lower - 1/2 Baths: 1

Bedrooms

  • Total Bedrooms: 5
  • Bedrooms Upper: 4
  • Bedrooms Lower: 1

Additional Information

  • Amenities: Cable TV, Deck, Dock, Electric Car Charging, Fenced-Partially, Gas Available, High Speed Internet, Irrigation, Moorage, Patio, Sprinkler System
  • Spa: Yes
  • Security/Safety: Partially Fenced, Security System

Parking

  • Garage: Yes
  • Attached garage: Yes
  • Covered Spaces: 3
  • Parking Features: Attached Garage

Location

  • Area: 510 - Mercer Island
  • County: King
  • Subdivision: West Mercer
  • Building Name: Lake View Highlands
  • Driving Directions: From Island Crest Way right at Merrimount Way. Left on W Mercer Way. Right on 79th Ave (Lakeview Highlands) follow road to T on 77th. Left on 77th to home.

School Information

  • High School District: Mercer Island
  • Elementary School: Lakeridge Elem
  • Middle School: Islander Mid
  • High School: Mercer Isl High

Heating & Cooling

  • Air Conditioning: Yes
  • Cooling Type: Central Air
  • Heating Type: Forced Air
  • Water Heater: Gas

Utilities

  • Sewer: Sewer Connected
  • Water: Public

Structural Information

  • Architectural Style: Traditional
  • Structure Type: House
  • Builder: Lochwood Lozier Custom Homes
  • Exterior Const.: Wood
  • Basement Desc.: Finished
  • Foundation: Poured Concrete
  • Roof: Metal
  • Entry Location: Main
  • Square Feet: 7,858
  • Finished Total: 7,858 Sq. Ft.
  • Year Built: 2025
  • Property Condition: Very Good

Lot Features

  • Property View: Lake, Territorial
  • Lot Size (Acres): 0.4844
  • Lot Size (Sq. Ft.): 21,100
  • Lot Size Source: KCAR
  • Topography: Level, Terraces
  • Lot Features: Paved
  • Trees/Vegetation: Garden Space

Water Features

  • Water Front: Yes

Financial Considerations

  • Tax Amount: $77,449
  • Tax Year: 2026
  • Terms: Cash, Conventional

Disclosures and Reports

  • Special Conditions: None
  • Inclusions: Dishwasher(s), Double Oven, Dryer(s), Garbage Disposal, Microwave(s), Refrigerator(s), Stove(s)/Range(s), Trash Compactor, Washer(s)
  • Property ID: 4097100010
Buyer's Brokerage Compensation: Contact Listing Agent
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— 6333 77th Ave SE —

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Schools serving 6333 77th Ave SE

School District:Mercer Island School District
NameGradesDistance
Island Park Elementary School
5437 Island Crest Way, Mercer Island, WA 98040
K-50.8 mi
Northwood Elementary School, Mercer Island, WA
4030 86th Avenue Southeast, Mercer Island, WA 98040
K-52 mi
Islander Middle School
8225 Southeast 72nd Street, Mercer Island, WA 98040
6-80.7 mi
Mercer Island High School
9100 Southeast 42nd Street, Mercer Island, WA 98040
9-121.9 mi
Disclaimer: School attendance boundaries provided by ATTOM Data Solutions and are for reference only. Contact the school directly to verify enrollment eligibility.

Price & Sales History for 6333 77th Ave SE Get Price Alerts and Save Property

Date
Details
Price
Change
Source
6/09/2026
Listed
$19,500,000
151.78%
MLS
8/19/2022
Sold
$7,745,000
—
Public Record
Get Price Alerts and Save Property
Disclaimer: Historical sales information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.

Tax History for 6333 77th Ave SE

Year
Property Taxes
Change
Tax Assessment
Change
2026
$77,449
156%
$11,892,000
157%
2024
$30,265
-30%
$4,622,000
-35%
2024
$43,465
—
$7,062,000
—
2022
$43,302
16%
$7,062,000
34%
2021
$37,291
—
$5,278,000
13%
2021
$37,291
8%
$4,660,000
7%
2020
$34,432
7%
$4,360,000
2%
2019
$32,065
-10%
$4,268,000
4%
2018
$35,737
3%
$4,120,000
-3%
2017
$34,605
8%
$4,253,000
10%
2016
$32,188
4%
$3,852,000
9%
2015
$31,009
-3%
$3,546,000
1%
2014
$32,024
—
$3,506,000
—
View All
Disclaimer: Historical tax information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.

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    Sq. Ft.
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6333 77th Avenue SE, Mercer Island, WA 98040 (MLS# 2537113) is a Single Family property with 5 bedrooms, 1 full bathroom and 7 partial bathrooms. 6333 77th Avenue SE is currently listed for $19,500,000 and was received on June 09, 2026. This property is listed by Boyd and Trull from our Bellevue Office.Want to learn more about 6333 77th Avenue SE? Do you have questions about finding other Single Family real estate for sale in Mercer Island? You can browse all Mercer Island real estate or contact a Coldwell Banker agent to request more information.

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