$9,995,000
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3639 W Mercer Way, Mercer Island, WA 98040

4 Beds
5 Baths
5,040 Sq Ft

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 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
  • Date Listed10/06/2025
  • Days on Realty 54 Days
  • Bedrooms 4
  • Bathrooms 2 Full baths, 1 Half baths, 2 Three Quarter baths
  • Lot Size 0.39 acres (17,000 sq. ft)
  • Subdivision Westside
  • Property Type Single Family
  • County King
  • Year Built 1993
  • Water Public
  • Square Feet 5,040 sq. ft
  • Price Per Sq. Ft $1983.13

Interior Features

  • Appliances Dishwasher, Double Oven, Dryer, Microwave, Refrigerator, Disposal, Washer
  • Flooring Hardwood, See Remarks, Stone, Carpet
  • Cooling Central Air, Ductless, Heat Pump
  • Heating Electric, Natural Gas, Ductless, Forced Air, Heat Pump

Exterior / Lot Features

  • Exterior Garden, Outbuilding
  • Roof Flat
  • Lot Size Acres 0.39
  • Lot Size SQFT 17,000.00
  • Lot Features Level, Paved, Waterfront

Financial Considerations

  • Tax Amount $60,176
  • Terms Cash, Conventional, FHA, VA Loan

Sales & Tax History

Source: Public Records

Population & Environment

Source: Sperling's Best Places

Walkability in WA / 98040

Source: Walkscore

69/100

Somewhat Walkable

Walk Score ®

33/100

Some Transit

Transit Score ®

22/100

Bikable

Bike Score ®

Overview

Some errands can be accomplished on foot. A few nearby public transportation options. Minimal bike infrastructure.

Transit Summary

6 nearby routes: 6 bus, 0 rail, 0 other


Walkability averages in the surrounding area

The average walkability score in the surrounding area is Walk Score: 35/100, Transit Score: 33/100, Bike Score: 46/100.

Property Change History

Property description updated with new details
Property description updated with new details
Property description updated with new details

Points of Interest near 3639 W Mercer Way, Mercer Island, WA 98040

Frequently Asked Questions for 3639 W Mercer Way

Source: Realty.com

3639 W Mercer Way, Mercer Island, WA 98040 is a Single Family 5,040 sq. ft. home listed for sale. Realty.com has 40 photos available of this 4 bed, 5 bath house, listed at $9,995,000. View sales and tax history, use our mortgage calculator and more on Realty.com

Realty.com has 40 photos of 3639 W Mercer Way.

Our records indicate that 3639 W Mercer Way was built in 1993.

The full address for this home is 3639 W Mercer Way, Mercer Island, WA 98040.

3639 W Mercer Way has been listed on Realty.com since Mon October 06, 2025

Some errands can be accomplished on foot. A few nearby public transportation options. Minimal bike infrastructure.

The average walkability score in the surrounding area is Walk Score: 35/100, Transit Score: 33/100, Bike Score: 46/100.

Listing provided courtesy of: Coldwell Banker Bain (tel: 425-454-0470)
Listing agent: Terry Allen (tel: 425-454-0470) (#6433)

This content last refreshed on 2025-11-29 14:49:52. Some properties which appear for sale on this web site may subsequently have sold or may no longer be available.

Export listing data of 3639 W Mercer Way, Mercer Island, WA 98040 : MLS# 2442125