Property Photo: 3639 W Mercer Way WA 98040

Listing Courtesy of:

Northwest MLS / Coldwell Banker Bain / Terry Allen / Patricia Wallace

3639 W Mercer Way Mercer Island, WA 98040

Pending (613 Days)

$9,995,000 ^(USD)

BED

BATH

5,040

SQFT

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Description

Experience the ultimate Mercer Island waterfront. A bespoke home on 100' of unparalleled west facing Lake WA frontage is built at the water’s edge. Designed for indoor/outdoor living and entertaining; the one-of-a-kind terrace perched over the water could not be built today. French doors and folding windows link al fresco energy to the warmth inside. Studs up remodel in 2016 spared no expense and added a separate carriage house. Notable details include limestone and sandstone imported from a quarry in France, floors reclaimed from a 16th century Italian monastery, specimen gardens, and a dock w/covered slip. Elan Smart Home System lets you manage your home from your phone. A generator runs the entire home if needed. Front row for Seafair.

MLS #:
2442125

Taxes
$60,176(2025)

Lot Size
0.39 acres

Type
Single-Family Home

Year Built
1993

Style
2 Story

Views
City, Lake, Mountain(s), See Remarks

School District
Mercer Island

County
King County

Community
Westside

Listed By

Terry Allen, Coldwell Banker Bain
Patricia Wallace, Coldwell Banker Bain

Source
Northwest MLS as distributed by MLS Grid
Last checked Feb 23 2026 at 1:24 AM GMT+0000

Bathroom Details

Full Bathrooms: 2
3/4 Bathrooms: 2
Half Bathroom: 1

Interior Features

High Tech Cabling
Wired for Generator
Disposal
Fireplace
French Doors
Dbl Pane/Storm Window
Smart Wired
Bath Off Primary
Second Primary Bedroom
Walk-In Closet(s)
Security System
Double Oven
Sprinkler System
Jetted Tub
Skylight(s)
Vaulted Ceilings
Walk-In Pantry
Hot Tub/Spa
Dining Room
Dishwasher(s)
Dryer(s)
Refrigerator(s)
Stove(s)/Range(s)
Microwave(s)
Washer(s)

Subdivision

Westside

Lot Information

Dead End Street
Paved

Property Features

Deck
Dock
Fenced-Fully
Gas Available
Patio
Propane
Moorage
Irrigation
Outbuildings
Cable Tv
High Speed Internet
Sprinkler System
Hot Tub/Spa
Fireplace: Gas
Fireplace: 2
Foundation: Poured Concrete

Heating and Cooling

High Efficiency (Unspecified)
Forced Air
Heat Pump
90%+ High Efficiency
Ductless

Flooring

Hardwood
Stone
Marble
Carpet
Ceramic Tile
See Remarks

Exterior Features

Stucco
Roof: Flat

Utility Information

Sewer: Sewer Connected
Fuel: Electric, Natural Gas

School Information

Elementary School: Buyer to Verify
Middle School: Islander Mid
High School: Mercer Isl High

Parking

Detached Garage

Stories

Living Area

5,040 sqft

Location

Map View | Street View

Listing to Address

Address to Listing

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Disclaimer: Based on information submitted to the MLS GRID as of 2/22/26 17:24. All data is obtained from various sources and may not have been verified by CB Bain 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.