4102 100th Avenue Se, Mercer Island, Washington 98040

WA, Mercer Island
$8,998,000
  • 5 Beds
  • 5 Bath
  • 5,535 Sqft
  • Residential Property Type
  • 2010 Year Built
  • Active Status
Property Description

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!

Source: NWMLS
Basic Details
  • Property Type: Residential
  • Listing Type: For Sale
  • Listing ID: 2501508
  • Price: $8,998,000
  • View: Lake,Mountains
  • Bedrooms: 5
  • Bathrooms: 5
  • Square Footage: 5,535 Sqft
  • Year Built: 2010
  • Lot Area: 0.51 Acre
  • Status: Active
  • Office Name: Windermere Real Estate/East
  • Agent Name: Joan C. Bayley
  • Full Bathrooms: 3
  • Property Sub Type: Single Family Residence
  • Roof: Composition
  • Waterfront: 1
Features
  • Heating System 90%+ High Efficiency
  • Cooling System Heat Pump, Central Air
  • Basement Finished, Daylight
  • Fireplace Gas, Wood Burning
  • Parking Attached Garage, RV Parking
  • Exterior Features Stone, Wood
  • Fireplaces Total: 4
  • Flooring Ceramic Tile, Hardwood, Carpet, Slate
  • Interior Features Bath Off Primary, Fireplace, French Doors, High Tech Cabling, Security System, Skylight(s), Vaulted Ceiling(s), Walk-In Closet(s), Wine Cellar, Second Kitchen, Dining Room, Water Heater, Sprinkler System, Wine/Beverage Refrigerator, Loft, SMART Wired, Built-In Vacuum, Pantry, Dbl Pane/Storm Window
  • Sewer Sewer Connected
  • Waterfront Features Medium Bank
Appliances
  • Double Oven
  • Disposal
  • Stove(s)/Range(s)
  • Dishwasher
  • Refrigerator
  • Microwave
  • Dryer
  • Washer
Address Map
  • Country US
  • State WA
  • County King
  • City Mercer Island
  • Zipcode 98040
  • Street: 100th
  • Street Number: 4102
  • Street Suffix: Avenue
  • Longitude: W123° 47' 44.9''
  • Latitude: N47° 34' 21.2''
  • Direction Faces: East
  • Directions: From E Mercer Way, turn onto 100th Ave SE then turn on first driveway on the left.
  • Mls Area Major: 510 - Mercer Island
  • Street Dir Suffix: SE
Neighborhood
  • Elementary School: Buyer To Verify
  • High School: Mercer Isl High
  • High School District: Mercer Island
  • Middle School: Islander Mid
Additional Information
  • Water Source: Public
  • Virtual Tour: Virtual Tour
  • On Market Date: 2026-04-07
  • Lot Features: Dead End Street, Paved
  • Levels: Two
  • Foundation Details: Poured Concrete
  • Construction Materials: Wood, Stone
  • Attached Garage Yn: 1
Financial
  • Tax Annual Amount: 41749
Listing Information
  • Co List Agent Full Name: Tere Foster
  • Co List Agent Mls Id: 73159
  • Co List Office Mls Id: 5813
  • Co List Office Name: COMPASS
  • List Agent Mls Id: 32653
  • List Office Mls Id: 5245
  • Listing Term: Cash,Conventional
  • Mls Status: Active
  • Modification Timestamp: 2026-04-10T16:57:15Z
  • Originating System Name: NWMLS
  • Special Listing Conditions: None
  • Status Change Timestamp: 2026-04-08T02:09:21Z
Rene  Orona
Rene Orona SKYLINE PROPERTIES, INC.
  • +1-425-891-8162
  • rene@brokerofrealestate.com
  • 50 116TH AVE SE STE 120 Bellevue, WA 98004, United States
  • +1-425-732-9211

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