Date
Details
Price
Change
Source
10/06/2025
Listed
$9,995,000
—
MLS
Disclaimer: Historical sales information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.
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1/40
$9,995,000
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Property Description
Smart Home
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.
Full Property Details
Full Property Details for 3639 W Mercer Way
General
- Price: $9,995,000
- Taxes: $60,176 (2025)
- Status: Active
- Type: Single Family
- Source: NWMLS
- MLS ID: 2442125
- Updated: 1/17/2026
- Added to Site: 105 day(s) ago
Interior
- Interior Features: Second Primary Bedroom, Bath Off Primary, Double Pane/Storm Window, Dining Room, Fireplace, French Doors, High Tech Cabling, Hot Tub/Spa, Jetted Tub, Security System, Skylight(s), SMART Wired, Sprinkler System, Vaulted Ceiling(s), Walk-In Closet(s), Walk-In Pantry, 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), See Remarks, Stove(s)/Range(s), Washer(s)
- Flooring: Hardwood, See Remarks, Stone, Travertine, Carpet
Rooms
Bathrooms
- Total Bathrooms: 5
- Full Bathrooms: 2
- 3/4 Bathrooms: 2
- Half Bathrooms: 1
- Upper - Full Baths: 2
- Upper - 3/4 Baths: 1
- Main Floor Baths: 2
- Main - 3/4 Baths: 1
- Main - 1/2 Baths: 1
Bedrooms
- Total Bedrooms: 4
- Bedrooms Upper: 3
- Bedrooms Main: 1
Additional Information
- Amenities: Cable TV, Deck, Dock, Fenced-Fully, Gas Available, High Speed Internet, Hot Tub/Spa, Irrigation, Moorage, Outbuildings, Patio, Propane, Sprinkler System
- Spa: Yes
- Security/Safety: Fully Fenced, Security System
Parking
- Garage: Yes
- Covered Spaces: 3
- Parking Features: Detached Garage
Location
- Area: 510 - Mercer Island
- County: King
- Subdivision: Westside
- Driving Directions: From W Mercer head S to 3600 block, driveway on your right, you will see the address, 3639.
- Direction Faces: West
School Information
- High School District: Mercer Island
- Elementary School: Buyer To Verify
- Middle School: Islander Mid
- High School: Mercer Isl High
Heating & Cooling
- Air Conditioning: Yes
- Cooling Type: Central A/C, Ductless, Forced Air, Heat Pump, HEPA Air Filtration, High Efficiency (Unspecified)
- Heating Type: 90%+ High Efficiency, Ductless, Forced Air, Heat Pump, High Efficiency (Unspecified)
Utilities
- Sewer: Sewer Connected
- Water: Public
Structural Information
- Architectural Style: See Remarks
- Structure Type: House
- Exterior Const.: Stucco
- Basement Desc.: None
- Foundation: Poured Concrete
- Roof: Flat
- Entry Location: Main
- Square Feet: 5,040
- Finished Total: 5,040 Sq. Ft.
- Year Built: 1993
Lot Features
- Property View: City, Lake, Mountain(s), See Remarks
- Lot Size (Acres): 0.3903
- Lot Size (Sq. Ft.): 17,000
- Lot Size Source: KCAR
- Topography: Level, Partial Slope
- Lot Features: Dead End Street, Paved
- Trees/Vegetation: Garden Space
Water Features
- Water Front: Yes
Financial Considerations
- Tax Amount: $60,176
- Tax Year: 2025
- Terms: Cash Out, Conventional
Disclosures and Reports
- Special Conditions: None
- Inclusions: Dishwasher(s), Double Oven, Dryer(s), Garbage Disposal, Microwave(s), Refrigerator(s), See Remarks, Stove(s)/Range(s), Washer(s)
- Property ID: 3623500255
- Lot Number: A
Buyer's Brokerage Compensation: Contact Listing Agent
Not binding unless confirmed by separate agreement among applicable parties.
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We Value Your Privacy
We Value Your Privacy
Meet the listing agents
Meet the listing agents
— 3639 W Mercer Way —
(425) 417-6161 mobile
(206) 947-2209 mobile
NMLS#: 1598647
Get Pre-Approved Today
Get a Great Insurance Rate
Schools
Schools serving 3639 W Mercer Way
School District:Mercer Island School District
| Name | Grades | Distance |
|---|---|---|
West Mercer Elementary School 4141 81st Avenue Southeast, Mercer Island, WA 98040 | K-5 | 0.8 mi |
Islander Middle School 8225 Southeast 72nd Street, Mercer Island, WA 98040 | 6-8 | 2.9 mi |
Mercer Island High School 9100 Southeast 42nd Street, Mercer Island, WA 98040 | 9-12 | 1.2 mi |
Disclaimer:
School attendance boundaries provided by Pitney Bowes and are for reference only. Contact the school directly to verify enrollment eligibility.
Price & Sales History for 3639 W Mercer Way
Tax History
Tax History for 3639 W Mercer Way
Year
Property Taxes
Change
Tax Assessment
Change
2024
$59,729
—
$9,242,000
-5%
2024
$59,729
—
$9,706,000
—
2022
$59,507
19%
$9,706,000
37%
2021
$49,945
—
$7,070,000
13%
2021
$49,945
6%
$6,242,000
4%
2020
$47,283
7%
$5,988,000
2%
2019
$44,028
-10%
$5,861,000
4%
2018
$49,064
18%
$5,657,000
11%
2017
$41,429
25%
$5,092,000
29%
2016
$33,073
4%
$3,958,000
9%
2015
$31,865
4%
$3,644,000
9%
2014
$30,545
—
$3,344,000
—
Disclaimer: Historical tax information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.
Estimate the Cost
Estimate the Cost for 3639 W Mercer Way
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- Single Family
- Closed
- 5Beds
- 5Total Baths
- 5,709Sq. Ft.
Listed by Ling Drost | WeLakeside and Tere Foster | Compass
Sold by The Becky Nadesan and Sarah Ford Team
Sold by The Becky Nadesan and Sarah Ford Team
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- 5Beds
- 5Total Baths
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Listed by Anna F. Riley | Windermere Real Estate/East and Denise Niles | Windermere Real Estate/East
Sold by Austin Wagner | Windermere Prof Partners
Sold by Austin Wagner | Windermere Prof Partners
- Single Family
- Closed
- 4Beds
- 5Total Baths
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Listed and Sold by Michael Nix | Keller Williams Rlty Bellevue and Scott Nicholson | Keller Williams Rlty Bellevue
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Sold by Sue Dhillon | Redfin
Sold by Sue Dhillon | Redfin
3639 W Mercer Way, Mercer Island, WA 98040 (MLS# 2442125) is a Single Family property with 4 bedrooms, 2 full bathrooms and 3 partial bathrooms. 3639 W Mercer Way is currently listed for $9,995,000 and was received on October 06, 2025. This property is listed by Terry Allen from our Bellevue Office.Want to learn more about 3639 W Mercer Way? 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.