4102 100th AVE SE Mercer Island, WA 98040 Active

UPDATED: 06/23/2026 08:03 PM

$8,495,000

5 Beds4.25 Baths5,535 SqFt

Key Details

Property Type Single Family Home

Sub Type Single Family Residence

Listing Status Active

Purchase Type For Sale

Square Footage 5,535 sqft

Price per Sqft $1,534

Subdivision North End

MLS Listing ID 2543693

Style 18 - 2 Stories w/Bsmnt

Bedrooms 5

Full Baths 3

Half Baths 1

Year Built 2010

Annual Tax Amount $41,749

Lot Size 0.505 Acres

Property Sub-Type Single Family Residence

Location

State WA

County King

Area 510 - Mercer Island

Rooms

Basement Daylight,Finished

Main Level Bedrooms 1

Interior

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

Flooring Ceramic Tile,Hardwood,Slate,Carpet

Fireplaces Number 4

Fireplaces Type Gas,Wood Burning

Fireplace true

Appliance Dishwasher,Disposal,Double Oven,Dryer,Microwave,Refrigerator,Stove(s)/Range(s),Washer

Exterior

Exterior Feature Stone,Wood

Amenities Available Cable TV,Deck,Dock,Fenced-Partially,Gas Available,Irrigation,Moorage,Outdoor Fireplace,Patio,RV Parking,Sprinkler System

Waterfront Description Medium Bank

View Y/N Yes

View Lake,Mountains

Roof Type Composition

Garage Yes

Building

Lot Description Dead End Street,Paved

Story Two

Sewer Sewer Connected

Water Public

Architectural Style Craftsman

New Construction No

Schools

Elementary Schools Buyer To Verify

Middle Schools Islander Mid

High Schools Mercer Isl High

School District Mercer Island

Others

Senior Community No

Acceptable Financing Cash,Conventional

Listing Terms Cash,Conventional

Property Description

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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Based on information submitted to the MLS GRID as of 07/07/2026 18:16 PM. All data is obtained from various sources and may not have been verified by broker or MLS GRID. Supplied Open House Information is subject to change without notice. All information should be independently reviewed and verified for accuracy. Properties may or may not be listed by the office/agent presenting the information.