4102 100th Avenue Se, Mercer Island, WA 98040

Mercer Island
Local realty services provided by:Better Homes and Gardens Real Estate McKenzie Realty
Listed by: joan c. bayley, tere foster
Office: windermere real estate/east
MLS#:2543693
Source:NWMLS
4102 100th Avenue Se,Mercer Island, WA 98040
$8,495,000
  • 5 Beds
  • 5 Baths
  • 5,535 sq. ft.
  • Single family
  • Active

Price summary

  • Price:$8,495,000
  • Price per sq. ft.:$1,534.78

About this home

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....

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Home facts

  • Year built:2010
  • Subdivision & Development:North End
  • Listing ID #:2543693
  • Updated:August 14, 2026 at 12:07 PM

Rooms and interior

  • Bedrooms:5
  • Total bathrooms:5
  • Full bathrooms:3
  • Half bathrooms:1
  • Flooring:Carpet, Ceramic Tile Floor, Hardwood, Slate Floor
  • Kitchen Description:Dishwasher, Disposal, Double Oven, Microwave, Refrigerator
  • Bedroom Description:Lower Level Bedrooms : 3, Main Level Bedrooms : 1, Upper Level Bedrooms : 1
  • Basement:Yes
  • Basement Description:Daylight, Finished
  • Living area:5,535 sq. ft.

Heating and cooling

  • Heating:90%+ High Efficiency
  • Central air:Yes

Structure and exterior

  • Roof:Composition
  • Year built:2010
  • Building area:5,535 sq. ft.
  • Lot area:0.51 Acres
  • Lot Features:Dead-end Street, Paved
  • Architectural Style:Craftsman
  • Construction Materials:Stone Exterior Finish, Wood Exterior Finish
  • Exterior Features:Deck, Dock, Fenced-Partially, Patio, Sprinkler System
  • Foundation Description:Daylight, Finished
  • Levels:2 Story

Schools

  • High school:Mercer Isl High
  • Middle school:Islander Mid
  • Elementary school:Buyer To Verify

Utilities

  • Water:Public
  • Sewer:Sewer Connected

Finances and disclosures

  • Price:$8,495,000
  • Price per sq. ft.:$1,534.78
  • Tax amount:$41,749 (2025)

Features and amenities

  • Appliances:Dishwasher, Refrigerator, Washer
  • Laundry features:Dryer, Washer
  • Amenities:Built-In Vacuum, Cable TV, Dock, French Doors, Gas Available, Irrigation, Moorage, Pantry, SMART Wired, Security System, Skylight(s), Sprinkler System, Vaulted Ceiling(s), Walk-In Closet(s), Water Heater, Wine Cellar
  • Smart home:Yes

Parking

  • Total parking spaces:3
  • Parking description:Attached Garage, RV Parking
  • Garage:Yes
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