4102 100th Avenue SE, Mercer Island, WA 98040
Modern Craftsman Waterfront on Mercer Island

Modern Craftsman Waterfront on Mercer Island

4102 100th Avenue SE, Mercer Island, WA

$8,998,000

HIGHLIGHTS
  • 5 Beds
  • 0.51 Acres Lot
  • 5,535 Sq.Ft. Living
  • 2010 Year Built
  • For Sale Status
  • 2501508 MLS ID

OPEN HOUSE HOURS

4/10/2026, 3:00 PM - 5:00 PM

A Modern Craftsman has come available on the desirable north end! Offering 90 feet of sparkling waterfront, a boater's dream dock & an unforgettable beachside guest house, this exceptional property is set on a 1/2 acre of richly manicured grounds w/ a pancake flat lawn stretching right to the water's edge. Inside, experience timeless architectural detail...chubby triple crown molding, board-and-batten 3/4 wainscot, an absolute exquisite level of craftsmanship awaits. Entertain in the Epicurean's dream kitchen where a massive island anchors the rm, offering space for gathering, prepping & entertaining. Flow seamlessly into the Great Rm, where an entire window wall & double sets of French doors open, blurring the line between the outdoors & the in. A separate upper wing hosts an expansive office/apartment suite w/ kitchenette ideal for work, guests, or multigenerational living. Retreat to the main flr primary, a sanctuary in itself, w/ stunning views & bath area reminiscent of a Four Seasons spa. The lower level unfolds into a wonderland of space w/ 3 bdrms (1 an ensuite), exercise + big bonus/billiard rm. At the shoreline, discover a charming 1-bdrm beachhouse w/ upper view loft that could be the perfect music rm, office or art studio. Control 4 smart home. 3 laundry rms. 5 bdrm/4.5 bth, 5,535 sf main house, 1 bdrm/1bth, 950 sf casita. With a 3-car garage, generous auto court & newer boat ready dock, you'll never want to leave. Welcome home to the ultimate in wtrfrnt living!
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Features and Amenities

Interior

  • Total Bedrooms5
  • Total Bathrooms5
  • FlooringCeramic Tile, Hardwood, Slate, Carpet
  • FireplaceGas, Wood Burning, 4, Fireplaces Lower: 2, Fireplaces Main: 2
  • APPLIANCESDishwasher(s),Double Oven,Dryer(s),Garbage Disposal,Microwave(s),Refrigerator(s),Stove(s)/Range(s),Washer(s)
  • other interior FeaturesBasement: Daylight, Finished, Features: Second Kitchen, Bath Off Primary, Built-In Vacuum, Dbl Pane/Storm Window, Dining Room, Fireplace, French Doors, High Tech Cabling, Loft, Pantry, Security System, Skylight(s), SMART Wired, Sprinkler System, Vaulted Ceiling(s), Walk-In Closet(s), Water Heater, Wine Cellar, Wine/Beverage Refrigerator

Area & Lot

  • Status For Sale
  • OPEN HOUSE4/10/2026, 3:00 PM - 5:00 PM
  • Living Area5,535 Sq.Ft.
  • Lot Area0.51 Acres
  • MLS® ID2501508
  • TypeResidential
  • YEAR BUILT2010
  • water Frontage90 Feet
  • View DescriptionLake, Mountains
  • Elementary SchoolNorthwood Elementary School
  • Middle SchoolIslander Middle School
  • High SchoolMercer Island High School
  • School DistrictMercer Island School District

Exterior

  • Garage Spaces3
  • Water SourcePublic, Water Company: City of Mercer Island
  • roofComposition
  • lot featuresSite Features: Cable TV, Deck, Dock, Fenced-Partially, Gas Available, Irrigation, Moorage, Outdoor Fireplace, Patio, RV Parking, Sprinkler System, Lot Details: Dead End Street, Paved, Vegetation: Garden Space, Lot Topography: Level,Partial Slope, Waterfront Description: Medium Bank
  • parkingAttached Garage, RV Parking
  • HEAT TYPE90%+ High Efficiency
  • AIR CONDITIONINGCentral Air, Heat Pump
  • sewerConnected, Sewer Company: City of Mercer Island
  • security FeaturesPartially Fenced, Security System
  • other exterior FeaturesStone, Wood
  • Additional FeaturesADU Beds: 1, Water Heater Type: Gas (3)

Financial

  • Sales Price$8,998,000
  • Real Estate Tax $41,749/yr
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Christina Gibbons

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917.837.8853
[email protected]


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