Listing provided courtesy of Windermere Real Estate/EastNWMLSas Distributed by MLSGrid- MLS# NWM2543693
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Request Info4102 100th Avenue SEMercer Island, WA 98040
Single Family · 5 Beds · 3 Full Baths · 1 Half Bath · 1 Three Quarter Bath · 5,535 Sq. ft. | 0.50 Acres$8,495,000
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4102 100th Avenue SE Overview
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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!
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4102 100th Avenue SE Facts & Features
- Type Single Family
- Sq. ft. 5,535
- Price/Sq.ft. $1,535
- Lot 0.50 Acres
Details
General
Association/HOA
- Association Fee: $0.00
School Information
- School District: Mercer Island
- Elementary School: Buyer To Verify
- Middle Or Junior School: Islander Mid
- High School: Mercer Isl High
Building Information
- Building Name: Lakeholm Addition
- New Construction: No
- Year Built: 2010
Location/Region
- Country: US
- County Or Parish: King
- MLS Area Major: 510 - Mercer Island
- Subdivision Name: North End
Rent/Lease Information
- Land Lease: No
Tax Information
- Tax Annual Amount: $41,749.00
- Tax Year: 2025
General Information
- Inclusions: Dishwasher(s), Double Oven, Dryer(s), Garbage Disposal, Microwave(s), Refrigerator(s), Stove(s)/Range(s), Washer(s)
- Listing Terms: Cash, Conventional
- Parcel Number: 4131900045
- Property Condition: Very Good
- Property Sub Type: Single Family Residence
- Property Type: Residential
- Senior Community: No
- Special Listing Conditions: None
Interior
Building Information
- Building Information: Built On Lot
Parking Information
- Garage: Yes
Beds/Baths
- ADU Baths: 1
- ADU Beds: 1
- Bathrooms Full: 3
- Bathrooms Half: 1
- Bathrooms Three Quarter: 1
- Bathrooms Total: 5
- Bedrooms Total: 5
- Bedrooms Lower: 3
- Bedrooms Upper: 1
Building Interior
- Appliances Included: Dishwasher(s), Double Oven, Dryer(s), Garbage Disposal, Microwave(s), Refrigerator(s), Stove(s)/Range(s), Washer(s)
- Building Area Total: 5535
- Building Area Units: Square Feet
- Calculated Square Footage: 5535
- Square Footage Finished: 5535
- Square Footage Unfinished: 0
General Information
- Appliances: Dishwasher, Disposal, Double Oven, Dryer, Microwave, Refrigerator, Stove(s)/Range(s), Washer
- Basement: Daylight, Finished
- Cooling: Yes
- Fireplace Features: Gas,Wood Burning
- Fireplace: Yes
- Fireplaces Total: 4
- Flooring: Ceramic Tile, Hardwood, Slate, Carpet
- Foundation Details: Poured Concrete
- Heating: Yes
- Interior 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
- Levels: Two
- Living Area: 5535
- Main Level Bathrooms: 2
- Main Level Bedrooms: 1
- Power Production Type: Natural Gas
- Security Features: Partially Fenced,Security System
Exterior
Parking Information
- Open Parking: No
- Parking Features: Attached Garage, RV Parking
- Parking Total: 3
Lot Information
- Irrigation Water Rights: No
- Lot Features: Dead End Street, Paved
- Lot Size Acres: 0.505
- Lot Size Square Feet: 22000
- Lot Size Units: Square Feet
- Site Features: Cable TV, Deck, Dock, Fenced-Partially, Gas Available, Irrigation, Moorage, Outdoor Fireplace, Patio, RV Parking, Sprinkler System
- Topography: Level, Partial Slope
- Vegetation: Garden Space
- Elevation Units: Feet
- Water Source: Public
Waterfront/View
- Waterfront Features: Medium Bank
- Waterfront Footage: 90
- Waterfront: Yes
Building Exterior/Construction
- Attached Garage: Yes
- Construction Methods: Standard Frame
- Direction Faces: East
- Roof: Composition
- Structure Type: House
General Information
- Carport: No
- Covered Spaces: 3
- Exterior Features: Stone, Wood
- Sewer: Sewer Connected
Room Information
Room: Bathroom Full
- Level: Lower
Room: Bathroom Full
- Level: Lower
Room: Bedroom
- Level: Lower
Room: Bedroom
- Level: Lower
Room: Bedroom
- Level: Lower
Room: Extra Fin Room
- Level: Lower
Room: Rec Room
- Level: Lower
Room: Utility Room
- Level: Lower
Room: Bathroom Full
- Level: Main
Room: Bathroom Half
- Level: Main
Room: Den/Office
- Level: Main
Room: Family Room
- Level: Main
Room: Great Room
- Level: Main
Room: Primary Bedroom
- Level: Main
Room: Bathroom Three Quarter
- Level: Second
Room: Bedroom
- Level: Second
4102 100th Avenue SE Neighborhood
Community
98040 (Mercer Island) Demographics
46
Median Age
2,001
Population Density (per sq. mile)
82%
College Educated
$150,506
Estimated Median Income
6,779
Estimated Total Home Owners
3,349
Estimated Total Renters
67% / 33%
Estimated Owner / Renter Divide
3
Estimated Average Household Size
Schools
School data courtesy of LiveBy, Inc. School ratings are based on a scale of 1-5, with 5 being the highest rating and 1 being the lowest rating.4102 100th Avenue SE Monthly Cost
4102 100th Avenue SE Market Data
Based on the last 30 days in this zip code
$4,213,533
Average List Price
$1,190
Average Price per Square Foot
19
Properties Sold
60
Average Days on Market
107
Properties for Sale
4102 100th Avenue SE History
| Date | Value | Agent |
|---|---|---|
| 6/22/2026Source: NWMLS | June 22, 2026 |
|
| 6/20/2022Source: NWMLS | June 01, 2021 |