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    • Listed by: Windermere Real Estate/East • Joan C. Bayley
    $8,495,000

    4102 100th Avenue SE, Mercer Island, WA 98040

    6beds
    5,535sqft
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    Single Family Residence
    Built in 2010
    0.51 Acres Lot
    $7,943,500 Zestimate®
    $1,535/sqft
    $-- HOA

    What's special

    Pancake flat lawnStunning viewsNewer boat ready dockMultiple deck spacesNewer dockEpic great roomGenerous auto court
    Get on the lake this summer and jump into one of the best waterfront investment opportunities on Lake Washington. This Northend Retreat showcases 90 ft of shoreline, a pancake flat lawn, a newer dock, and a guest house at the water’s edge. Inside, craftsmanship reigns w/triple crown molding + rich millwork & board & batten details. An epic Great Room awaits, flowing effortlessly through a fully opening retractable window wall & triple sets of French doors to multiple deck spaces & a covered outdoor living area w/ TV, frplc and built in BBQ. At its heart sits an Epicurean kitchen—a true command center for serious cooking & unforgettable gatherings. Private upper wing hosts an apartment suite w/ kitchenette ideal for work or multigenerational living. Retreat to the main flr primary, a sanctuary in itself, w/ soaring ceilings, stunning views, his/hers closets & its own laundry. 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 beach house w/ upper view loft that could be the perfect art studio or massive storage space for all of the outdoor toys. 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!
    28 days
    |
    2,070
    |
    116
    |

    Zillow last checked:

    Listing updated:

    Listed by:

    Joan C. Bayley,

    Windermere Real Estate/East,

    Tere Foster,

    COMPASS

    Source: NWMLS as distributed by MLS GRID,MLS#: 2543693MLS Logo

      Facts & features

      Interior

      Bedrooms & bathrooms
      • Bedrooms: 6
      • Bathrooms: 6
      • Full bathrooms: 4
      • 3/4 bathrooms: 1
      • 1/2 bathrooms: 1
      • Main level bathrooms: 2
      • Main level bedrooms: 1
      Primary bedroom
      • Level: Main
      Bedroom
      • Level: Lower
      Bedroom
      • Level: Lower
      Bedroom
      • Level: Lower
      Bedroom
      • Level: Second
      Bathroom full
      • Level: Lower
      Bathroom full
      • Level: Lower
      Bathroom three quarter
      • Level: Second
      Bathroom full
      • Level: Main
      Other
      • Level: Lower
      Other
      • Level: Main
      Den office
      • Level: Main
      Family room
      • Level: Main
      Great room
      • Level: Main
      Rec room
      • Level: Lower
      Utility room
      • Level: Lower
      Heating
      • Fireplace, 90%+ High Efficiency, Natural Gas
      Cooling
      • Heat Pump
      Appliances
      • Included: Dishwasher, Disposal, Double Oven, Dryer, Microwave, Refrigerator, Stove(s)/Range(s), Washer, Dishwasher(s), Dryer(s), Garbage Disposal, Microwave(s), Refrigerator(s), Washer(s), Water Heater: Gas (3), Water Heater Location: Mechanical Room
      Features
      • Bath Off Primary, Central Vacuum, Dining Room, High Tech Cabling, Loft, Pantry
      • Flooring: Ceramic Tile, Hardwood, Slate, Carpet
      • Doors: French Doors
      • Windows: Dbl Pane/Storm Window, Skylight(s)
      • Basement: Daylight,Finished
      • Number of fireplaces: 4
      • Fireplace features: Gas, Wood Burning, Lower Level: 2, Main Level: 2, Fireplace
      Interior area
      • Total structure area: 5,535
      • Total interior livable area: 5,535 sqft

      Property

      Parking
      • Total spaces: 3
      • Parking features: Attached Garage, RV Parking
      • Has attached garage: Yes
      • Covered spaces: 3
      Features
      • Levels: Two
      • Stories: 2
      • Patio & porch: 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
      • Has view: Yes
      • View description: Lake, Mountain(s)
      • Has water view: Yes
      • Water view: Lake
      • Waterfront features: Medium Bank
      • Frontage length: Waterfront Ft: 90
      Lot
      • Size: 0.51 Acres
      • Features: Dead End Street, Paved, Cable TV, Deck, Dock, Fenced-Partially, Gas Available, Irrigation, Moorage, Outdoor Fireplace, Patio, RV Parking, Sprinkler System
      • Topography: Level,Partial Slope
      • Residential vegetation: Garden Space
      Details
      • Additional structures: ADU Beds: 1, ADU Baths: 1
      • Parcel number: 4131900045
      • Zoning description: Jurisdiction: City
      • Special conditions: Standard

      Construction

      Type & style
      • Home type: SingleFamily
      • Architectural style: Craftsman,2 Stories w/Bsmnt
      • Property subtype: Single Family Residence
      Materials
      • Stone, Wood Siding
      • Foundation: Poured Concrete
      • Roof: Composition
      Condition
      • Very Good
      • Year built: 2010

      Utilities & green energy

      • Electric: Company: Puget Sound Energy
      • Sewer: Sewer Connected, Company: City of Mercer Island
      • Water: Public, Company: City of Mercer Island

      Community & HOA

      Community
      • Security: Security System
      • Subdivision: North End
      Location
      • Region: Mercer Island

      Financial & listing details

      • Price per square foot: $1,535/sqft
      • Tax assessed value: $6,692,000
      • Annual tax amount: $41,749
      • Date on market: 4/6/2026
      • Cumulative days on market: 106 days
      • Listing terms: Conventional
      • Inclusions: Dishwasher(s), Double Oven, Dryer(s), Garbage Disposal, Microwave(s), Refrigerator(s), Stove(s)/Range(s), Washer(s)

        Estimated market value

        $7,943,500

        $7.55M - $8.34M

        $7,967/mo

        Price history

        DateEventPrice
        6/22/2026Listed for sale$8,495,000+102.3%$1,535/sqft
        Source: NWMLS as distributed by MLS GRID #2543693 Report a problem
        7/2/2012Sold$4,199,000$759/sqft
        Source: NWMLS as distributed by MLS GRID #362794 Report a problem
        6/4/2012Pending sale$4,199,000$759/sqft
        Source: John L Scott Real Estate #362794 Report a problem
        5/31/2012Listed for sale$4,199,000$759/sqft
        Source: John L Scott Real Estate #362794 Report a problem

        Public tax history

        YearProperty taxesTax assessment
        2025$43,593 +4.4%$6,692,000 +4.9%
        2024$41,749 +1.3%$6,377,000 +6.5%
        2023$41,222 +0.4%$5,989,000 -10.6%
        2022$41,071 +11.4%$6,698,000 +33.8%
        2021$36,855 +5.1%$5,006,000 +14.2%
        2020$35,083 -15.2%$4,384,000 -16.4%
        2019$41,394 +2.3%$5,242,000 -2.6%
        2018$40,446 -9.9%$5,384,000 +4%
        2017$44,902 +29.5%$5,177,000 +9.3%
        2016$34,680 $4,737,000 +10.4%
        2015$34,680 $4,291,000 +8.2%
        2014$34,680 $3,966,000 -3.4%
        2013$34,680 $4,105,000 +7.7%
        2012-- $3,812,000 +331.2%
        2001$8,451 +8.5%$884,000 +19.8%
        2000$7,789 $738,000
        Find assessor info on the county website

        Monthly payment

        Est. payment

        Payment breakdown

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        All calculations are estimates and provided by Zillow, Inc. for informational purposes only. Actual amounts may vary.
        HOA fees may include property taxes on listings classified as Co-Ops. Contact the listing agent and/or owner for fee details.
        Mortgage interest rates are dependent on a number of factors, including credit score, down payment, and repayment length. Interest rate data provided by Zillow Group Marketplace, Inc. as of 1/1/1970 from various mortgage lenders with which we have lead or other similar arrangements; the Estimated Payment is an average of those rates.
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        Climate risks

        Neighborhood: 98040

        Getting around

        22 / 100
        Car-Dependent
        10 / 100
        Minimal Transit
        38 / 100
        Somewhat Bikeable

        Nearby schools

        GreatSchools rating
        Schools provided by the listing agent
        • Middle: Islander Mid
        • High: Mercer Isl High

        Source: NWMLS as distributed by MLS GRID. This data may not be complete. We recommend contacting the local school district to confirm school assignments for this home.

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