6333 77th Avenue SE, Mercer Island, WA 98040 (MLS # 2537113)
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Listing provided courtesy of Northwest MLS; Coldwell Banker Bain
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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.
| LAST UPDATED | 6/9/2026 | TRACT | West Mercer |
|---|---|---|---|
| YEAR BUILT | 2025 | COMMUNITY | West Mercer |
| COUNTY | King | STATUS | Active |
| PROPERTY TYPE(S) | Single Family |
| Elementary School | Lakeridge Elem |
|---|---|
| Jr. High School | Islander Mid |
| High School | Mercer Isl High |
| ADDITIONAL DETAILS | |
| AIR | Ceiling Fan(s), Central Air |
|---|---|
| AIR CONDITIONING | Yes |
| APPLIANCES | Dishwasher, Disposal, Double Oven, Dryer, Gas Water Heater, Microwave, Refrigerator, Trash Compactor, Washer, Water Heater |
| AREA | 510 - Mercer Island |
| BASEMENT | Finished, Yes |
| CONSTRUCTION | Stone, Wood Siding |
| EXTERIOR | Garden |
| FIREPLACE | Yes |
| GARAGE | Attached Garage, Yes |
| HEAT | Forced Air, Natural Gas |
| INTERIOR | Bath Off Primary, Ceiling Fan(s), Dbl Pane/Storm Window, Dining Room, Fireplace, High Tech Cabling, Hot Tub/Spa, Pantry, Sauna, Second Kitchen, 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 |
| LOT | 0.4844 acre(s) |
| LOT DESCRIPTION | Paved |
| MLS STATUS | Active |
| PARKING | Attached |
| STORIES | 2 |
| STYLE | 18 - 2 Stories w/Bsmnt |
| SUBDIVISION | West Mercer |
| TAXES | 77449 |
| UTILITIES | Cable Available, Sewer Connected |
| VIEW | Yes |
| VIEW DESCRIPTION | Lake, Territorial |
| WATER | Public |
| WATERFRONT | Yes |
| WATERFRONT DESCRIPTION | Waterfront |
| SATELLITE VIEW |
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Properties with the 
icon are courtesy of Northwest MLS.
Listings courtesy of Northwest MLS as distributed by MLS GRID. Based on information submitted to the MLS GRID as of 6/10/26 4:34 AM PDT. All data is obtained from various sources and may not have been verified by broker or MLS GRID. IDX information is provided exclusively for consumers’ personal noncommercial use, that it may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. 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.
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