3639 W Mercer Way

Mercer Island, WA 98040

$9,995,000
Price
4
Beds
5,040 Sq. Ft.
$1,983 / Sq. Ft.
5,040
Sq. Ft.
$1,983
per Sq. Ft.
Virtual Tour
Virtual Tour
Listing provided courtesy of Coldwell Banker Bain

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...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.
  1. Listed by Terry Allen • Coldwell Banker Bain
  2. Listed by Patricia Wallace • Coldwell Banker Bain

Property Details for 3639 West Mercer Way

Community Name
Westside
School District
Mercer Island
View
City, Lake, Mountain(s), See Remarks
Number of Assigned Spaces
3
Total Covered Parking
3
Entry Date
10-06-2025
Energy Source
Electric,Natural Gas
Sewer
Sewer Connected
LISTING UPDATED: 01/08/2026 06:12 AM

Property Details for 3639 West Mercer Way

StatusActive
MLS #2442125
Days on Market94
Cumulative Days on Market576
Taxes$60,176 / year
HOA Fees-
Condo/Co-op Fees-
Compass TypeSingle Family
MLS TypeResidential
Year Built1993
Lot Size0.39 AC / 17,000 SF
CountyKing County

Location

Listing Courtesy of Coldwell Banker Bain
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Building Information for 3639 West Mercer Way

Stories-Year Built1993Building Size-Lot Size0.39 AC / 17,000 SF

Payment Calculator

$53,729 per month

30 year fixed, 6.15% Interest

Principal and Interest

$48,714

Property Taxes

$5,015

HOA Dues

$0

The Payment Calculator is for illustrative purposes only.

Property Information for 3639 West Mercer Way

Summary
Location and General Information
  • Style: 12 - 2 Story
  • Building Information: Built On Lot
  • Site Features: Cable TV, Deck, Dock, Fenced-Fully, Gas Available, High Speed Internet, Hot Tub/Spa, Irrigation, Moorage, Outbuildings, Patio, Propane, Sprinkler System
  • Area: 510 - Mercer Island
  • Elementary School: Buyer To Verify
  • Middle Or Junior School: Islander Mid
  • High School: Mercer Isl High
  • Directions: From W Mercer head S to 3600 block, driveway on your right, you will see the address, 3639.
  • Property Sub Type: RESI
  • View: Yes
  • Waterfront: Yes
  • Entry Location: Main
  • Direction Faces: West
Taxes and HOA Information
  • Tax Year: 2025
Parking
  • Garage Spaces: 3.0
  • Attached Garage: No
  • Carport: No
  • Garage: Yes
  • Parking Type: Garage-Detached
  • Open Parking: No
  • Parking Features: Detached Garage
Interior and Exterior Features
Bathroom Information
  • Full Bathrooms: 2
  • Three Quarter Bathrooms: 2
  • Half Bathrooms: 1
  • Full Baths Lower: 0
  • Full Baths Main: 0
  • Full Baths Upper: 2
  • Three Quarter Baths Lower: 0
  • Three Quarter Baths Main: 1
  • Three Quarter Baths Upper: 1
  • Half Baths Lower: 0
  • Half Baths Main: 1
  • Half Baths Upper: 0
  • Full Baths Garage: 0
  • Half Baths Garage: 0
  • Three Quarter Baths Garage: 0
  • Main Level Bathrooms: 2
Bedroom Information
  • Bedrooms Main: 1
  • Bedrooms Upper: 3
  • Bedrooms Lower: 0
Interior Features
  • Fireplaces Total: 2
  • Fireplaces Main: 2
  • Floor Covering: Hardwood, See Remarks, Stone, Travertine, Carpet
  • Basement: None
  • 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
  • Room and Floor: Entry Hall-Main, Living Room-Main, Dining Room-Main, Bathroom Half-Main, Family Room-Main, Bedroom-Main, Bathroom Three Quarter-Main, Primary Bedroom-None, Bathroom Full-None, Bedroom-None, Den/Office-None, Utility Room-None, Bonus Room-None, Bathroom Three Quarter-None
  • Appliances: Dishwasher(s), Disposal, Double Oven, Dryer(s), Microwave(s), Refrigerator(s), See Remarks, Stove(s)/Range(s), Washer(s)
  • Cooling: Yes
  • Cooling: Central A/C, Ductless, Forced Air, Heat Pump, HEPA Air Filtration, High Efficiency (Unspecified)
  • Fireplace Features: Gas
  • Fireplace: Yes
  • Heating: Yes
  • Heating: 90%+ High Efficiency, Ductless, Forced Air, Heat Pump, High Efficiency (Unspecified)
  • Spa: Yes
  • FIRPTA: No
  • Room List: Entry Hall, Living Room, Dining Room, Bathroom Half, Family Room, Bedroom, Bathroom Three Quarter, Primary Bedroom, Bathroom Full, Den/Office, Utility Room, Bonus Room
  • Number Of Showers: 2
Exterior Features
  • Exterior: Stucco
  • Roof: Flat
  • Appliances That Stay: Dishwasher(s),Double Oven,Dryer(s),Garbage Disposal,Microwave(s),Refrigerator(s),See Remarks,Stove(s)/Range(s),Washer(s)
  • Waterfront Description: Low Bank, Bulkhead, Lake
  • Security Features: Fully Fenced, Security System
Property
Utilities
  • Water Source: Public
  • Power Company: PSE
  • Sewer Company: City of MI
  • Water Company: City of MI
  • Power Production Type: Electric, Natural Gas
Property and Assessments
  • New Construction YN: No
  • Senior Exemption: No
  • Zoning Jurisdiction: City
  • Foundation: Poured Concrete
  • Level: Two
  • Lot Topography: Level,Partial Slope
  • Construction Methods: Standard Frame
  • First Right Of Refusal: false
  • MLS Square Footage Source: KCAR
  • Preliminary Title Ordered: Yes
  • Senior Community: No
  • Special Listing Conditions: None
  • Photos Count: 40
Lot Information
  • Lot Details: Dead End Street, Paved
  • Lot Number: A
  • Lot Size Source: KCAR
  • Waterfront Footage: 100
  • Parcel Number Free Text: 3623500255
  • Calculated Square Footage: 5040
  • Structure Type: House
  • Square Footage Finished: 5040
  • Square Footage Unfinished: 0
  • Vegetation: Garden Space
  • Building Area Total: 5040.0
  • Building Area Units: Square Feet
  • Property Type: Residential
  • Elevation Units: Feet
  • Irrigation Water Rights: No
  • Irrigation Comments: Waters from Lake
  • Water Access: Deeded Access
Rental
Rent Information
  • Occupant Type: Owner
  • Land Lease: No

Property History for 3639 West Mercer Way

DateEvent & SourcePriceAppreciation
Oct 6, 2025

Listed (Active)

NWMLS #2442125

$9,995,000—
DateEvent & SourcePrice
10/06/2025

Listed (Active)

NWMLS #2442125

$9,995,000

For completeness, Compass often displays two records for one sale: the MLS record and the public record.

Public Records for 3639 West Mercer Way

Taxable ValueLand$4,521,000Additions$4,721,000Total$9,242,000
Tax Record2024$59,729 ($4,977 / month)
Home Facts
Beds4Baths3.5Total Finished SqFt4,310 SqFtAbove Ground SqFt4,310 SqFtStories2Lot Size17,000 SqFtStyleSingle Family ResidenceYear Built1993ZoningR-15CountyKINGAPN362350-0255Fireplace TypeHas Fireplace

Schools near 3639 West Mercer Way

This home is within Mercer Island School District.
Rating
School
Type
Grades
Distance
West Mercer Elementary School
Public - K to 5
Islander Middle School
Public - 6 to 8
Mercer Island High School
Public - 9 to 12
Privett Academy
Private - 8 to 12
Rating
School
Distance
West Mercer Elementary School
PublicK to 5

Islander Middle School
Public6 to 8

Mercer Island High School
Public9 to 12

Privett Academy
Private8 to 12

School ratings and boundaries are provided by GreatSchools.org and Pitney Bowes. This information should only be used as a reference. Proximity or boundaries shown here are not a guarantee of enrollment. Please reach out to schools directly to verify all information and enrollment eligibility.

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More information about 3639 West Mercer Way, Mercer Island, WA 98040

3639 West Mercer Way is a single family home for sale in Mercer Island, WA 98040. This property was listed for sale on October 6, 2025 by Coldwell Banker Bain, it's currently listed at $9,995,000. This listing's school district is Mercer Island School District. Nearby schools include West Mercer Elementary School, Islander Middle School and Mercer Island High School. 3639 West Mercer Way is a 4-bed, 5-bath, 5,040 sqft single family home built in 1993.

No guarantee, warranty or representation of any kind is made regarding the completeness or accuracy of descriptions or measurements (including square footage measurements and property condition), such should be independently verified, and Compass, Inc., its subsidiaries, affiliates and their agents and associated third parties expressly disclaims any liability in connection therewith. Photos may be virtually staged or digitally enhanced and may not reflect actual property conditions. Offers of compensation are subject to change at the discretion of the seller. No financial or legal advice provided. Equal Housing Opportunity. Subject to change at any time. Compass makes no guarantee, warranty or representation regarding the accuracy of any waterfront feature, water view or waterfront view.

Listing Courtesy of Coldwell Banker Bain

Properties displayed may be listed or sold by various participants in the MLS. Based on information submitted to the MLS GRID as of 01/08/2026 08:55 AM. All data is obtained from various sources and may not have been verified by broker orMLS GRID. Supplied Open House Information is subject to change without notice. All informationshould be independently reviewed and verified for accuracy. Properties may or may not be listed bythe office/agent presenting the information.