3639 W Mercer Way Mercer Island, WA 98040
Sold
Listing Courtesy of: MLS LogoNorthwest MLS as distributed by MLS GRID / Coldwell Banker Bain / Terry Allen and Compass / Patricia Wallace

  3639 W Mercer Way Mercer Island, WA 98040

Sold on 04/22/2026
$8,850,000 (USD)
4
BED
5
BATH
5,040
SQFT

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.

Sold Date:
04/22/2026
Taxes
$60,176(2025)
Lot Size
0.39 acres
Type
Single-Family Home
Year Built
1993
Style
2 Story
Views
City, Lake, See Remarks, Mountains
School District
Mercer Island
County
King County
Community
Westside

Listed By

Terry Allen, Coldwell Banker Bain
Patricia Wallace, Coldwell Banker Bain
Bought with
Greg Rosenwald, Compass
Source
Northwest MLS
Last checked May 1 2026 at 5:07 AM GMT+0000
Bathroom Details
  • Full Bathrooms: 2
  • 3/4 Bathrooms: 2
  • Half Bathroom: 1
Interior Features
  • High Tech Cabling
  • Pantry
  • Wired for Generator
  • Dishwasher
  • Microwave
  • Disposal
  • Fireplace
  • French Doors
  • Refrigerator
  • Dryer
  • Washer
  • Dbl Pane/Storm Window
  • Smart Wired
  • Bath Off Primary
  • Second Primary Bedroom
  • Vaulted Ceiling(s)
  • Walk-In Closet(s)
  • Security System
  • Double Oven
  • Sprinkler System
  • Jetted Tub
  • Skylight(s)
  • Hot Tub/Spa
  • Dining Room
  • Stove(s)/Range(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
  • 2
Living Area
  • 5,040 sqft

Listing Price History

Date
Event
Price
% Change
$ (+/-)
Oct 06, 2025
Listed
$9,995,000
-
-
Disclaimer: Square footage is based on information available to agent, including County records. Information has not been verified by agent and should be verified by buyer.
Based on information submitted to the MLS GRID as of 5/1/2026 05:07. All data is obtained from various sources and may not have been verified by broker 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.