3639 W Mercer Way Mercer Island, WA $ 9,995,000
3639 W Mercer Way
$ 9,995,000
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3639 W Mercer Way

Mercer Island, WA, 98040
$ 9,995,000
Bedrooms4 Baths4.1 Sq 5,040

Monthly Estimate*

$ 62,356

Listed by Coldwell Banker Bain
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Single Family Home for sale in Mercer Island, WA

for $9,995,000 with 4 bedrooms and 4 full baths, 1 half bath. This 5,040 square foot home was built in 1993 on a lot size of 0.3903.

Reintroducing the ultimate Mercer Island lifestyle. 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.

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Single Family Active

Price

$ 9,995,000

Bedrooms

4

Full Bath

4

Half Bath

1

Property Type

Single Family

Taxes

$ 60,176

Style

2 Story

Lot Size

0.3903

Year Built

1993

Town/City

Mercer Island

County/Region

King

MLS | Web ID

2442125

Features
General
Living Area 5040
Sewer Sewer Connected
Heating Ductless Forced Air Heat Pump High Efficiency (Unspecified) Hot Water Recirc Pump
Cooling Central A/C Ductless Forced Air Heat Pump HEPA Air Filtration High Efficiency (Unspecified)
Possession Closing Negotiable
Roof Flat
Appliances Dishwasher(s) Disposal Double Oven Dryer(s) Microwave(s) Refrigerator(s) See Remarks Stove(s)/Range(s) Washer(s)
HOA Fee 0
Garage Spaces 3
Security Features Fully Fenced Security System
Year Built 1993
View City Lake Mountain(s) See Remarks
Topography Level Partial Slope
Levels Two
Property Subtype Single Family Residence
Tax Year 2025
Waterfront Features Low Bank Bulkhead Lake
County King
New Construction N
Property Type Residential
HOA N
Attached Garage N
Subdivision Name Westside
Facing Direction West
Garage Y/N Y
Full Baths 2
Special Listing Conditions None
Status Active
Directions From W Mercer head S to 3600 block driveway on your right you will see the address 3639.
High School Mercer Isl High
City Mercer Island
Entry Location Main
Senior Community Y/N N
High School District Mercer Island
MLS Area 510 - Mercer Island
Lot Size Units Square Feet
Lot Size Square Feet 17000
Carport Y/N N
Listing Terms Cash Out Conventional
Elementary School Buyer To Verify
Land Lease Y/N N
Tax Annual Amount 60176
Middle/Junior High School Islander Mid
Public Remarks Reintroducing the ultimate Mercer Island lifestyle. A bespoke home on 100' of unparalleled west facing Lake WA frontage is built at the waters edge. Designed for indoor/outdoor living and entertainin
Virtual Tour https://player.vimeo.com/video/957410816?h=70a3e5a7d8&badge=0&autopause=0&player_id=0&app_id=58479
Structure Type House
Building Area Units Square Feet
Standard Status Active
Water Company City of MI
Property Style 12 - 2 Story
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Interior
Interior Amenities 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 V
Basement None
Flooring Hardwood See Remarks Stone Travertine Carpet
Total Fireplaces 2
Fireplace Features Gas
Air Conditioning Y/N Y
Heating Y/N Y
Fireplace Y/N Y
Half Baths 1
3/4 Baths 2
Total Bedrooms 4
Main Level Bedrooms 1
Total Baths 5
Fireplaces Main 2
Power Production Type Electric Natural Gas
Baths Three Quarter Garage 0
Baths Three Quarter Lower 0
Baths Three Quarter Main 1
Baths Three Quarter Upper 1
Bedrooms Lower 0
Bedrooms Upper 3
Baths Half Upper 0
Baths Half Main 1
Baths Half Lower 0
Baths Half Garage 0
Baths Full Upper 2
Baths Full Main 0
Baths Full Lower 0
Baths Full Garage 0
Bathrooms 4
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Exterior
Exterior Amenities Stucco
Vegetation Garden Space
Parking Features Detached Garage
Lot Features Dead End Street Paved
Water Source Public
Total Parking 3
Inclusions Dishwasher(s) Double Oven Dryer(s) Garbage Disposal Microwave(s) Refrigerator(s) See Remarks Stove(s)/Range(s) Washer(s)
Foundation Details Poured Concrete
Spa Y
Building Area Total 5040
Lot Size Acres 0.3903
Waterfront Y/N Y
Covered Spaces 3
Irrigation Water Rights Y/N Y
Waterfront Footage 100
Site Features Cable TV Deck Dock Fenced-Fully Gas Available High Speed Internet Hot Tub/Spa Irrigation Moorage Outbuildings Patio Propane Sprinkler System
Lot Number A
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Internal Only
OriginalMLSID NWM2442125
Street Number 1 3639
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* Excluded Features
List By
Terry Allen

Listing Agent

Coldwell Banker Bain

Broker

Affordability Calculator

$67,370
Per Month
93%
7%
0%
Monthly Principal & Interest
$62,356
Monthly Property Taxes
$5,015
Monthly Home Insurance
--
Default based on a 30-year fixed rate of 6.375% with 20% down. The estimated payment is offered for convenience and is not an offer of credit. Due to market fluctuations, interest rates are subject to change at any time and without notice. Your individual rate may vary. Rates may differ for FHA, VA or jumbo loans.
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Nearby
3100538 Elementary School
1853914 Middle School
Mercer Isl High High School
Pricing History
DatePricePrice ChangeDescription
10/7/2025$9,995,000 Listed Price

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3639 W Mercer Way, Mercer Island, WA, 98040 is a Single Family Home for sale at $9,995,000 with 5,040 sqft and a lot size of 0.3903. 3639 W Mercer Way has 4 bedrooms, 4.1 baths, and was built in 1993. The property's zip code is 98040 which is in Mercer Island, WA