4102 100th Avenue SE Mercer Island, WA $ 6,880,000
4102 100th Avenue SE
$ 6,880,000
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4102 100th Avenue SE

Mercer Island, WA, 98040
$ 6,880,000
Bedrooms5 Baths4.1 Sq 5,535

Monthly Estimate*

$ 43,441

Listed by Windermere Real Estate/East
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Single Family Home for sale in Mercer Island, WA

for $6,880,000 with 5 bedrooms and 4 full baths, 1 half bath. This 5,535 square foot home was built in 2002 on a lot size of 0.505.

Undeniably the best waterfront value of the summer! Invest in not one home but two: a 5 bedrm main residence with an apartment/office suite plus a separate 1 bedrm guest house right at the water’s edge. This Northend Retreat showcases 90 ft of shoreline, a pancake flat lawn, a newer dock. 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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Single Family Active

Price

$ 6,880,000

Bedrooms

5

Full Bath

4

Half Bath

1

Property Type

Single Family

Taxes

$ 41,749

Style

Craftsman

Lot Size

0.505

Year Built

2002

Town/City

Mercer Island

County/Region

King

MLS | Web ID

2572498

Features
General
Living Area 5535
Sewer Sewer Connected
Heating Forced Air
Cooling Central Air
Possession Negotiable
Roof Flat
Appliances Dishwasher Disposal Double Oven Dryer Microwave Refrigerator Stove(s)/Range(s) Washer
HOA Fee 0
Architectural Style Craftsman
Security Features Fully Fenced Security System
Year Built 2002
View Lake Mountains
Topography Level Partial Slope
Property Subtype Single Family Residence
Tax Year 2025
Waterfront Features High Bank Low Bank
Building Name Lakeholm Addition
County King
New Construction N
Property Type Residential
HOA N
Attached Garage Y
Subdivision Name North End
Facing Direction East
Garage Y/N Y
Full Baths 3
Special Listing Conditions None
Status Active
Directions From E Mercer Way turn onto 100th Ave SE then turn on first driveway on the left.
High School Mercer Isl High
City Mercer Island
Entry Location Main
Senior Community Y/N N
High School District Mercer Island
MLS Area 510 - Mercer Island
Lot Size Units Square Feet
Lot Size Square Feet 22000
Carport Y/N N
Listing Terms Cash Conventional
Elementary School Northwood Elem
Land Lease Y/N N
Tax Annual Amount 41749
Middle/Junior High School Islander Mid
Property Condition Very Good
Public Remarks Undeniably the best waterfront value of the summer! Invest in not one home but two: a 5 bedrm main residence with an apartment/office suite plus a separate 1 bedrm guest house right at the waters edg
Structure Type House
Building Area Units Square Feet
Standard Status Active
Water Company City of Mercer Island
Property Style 25 - 3 Story
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Interior
Interior Amenities Second Kitchen Second Primary Bedroom Bath Off Primary Dbl Pane/Storm Window Fireplace Pantry Security System Vaulted Ceiling(s) Walk-In Closet(s) Wine Cellar
Basement Finished
Flooring Ceramic Tile Hardwood Stone Carpet
Total Fireplaces 2
Fireplace Features Gas
Air Conditioning Y/N Y
Heating Y/N Y
Fireplace Y/N Y
Half Baths 1
3/4 Baths 1
Total Bedrooms 5
Main Level Bedrooms 1
Total Baths 5
Fireplaces Main 1
Fireplaces Lower 1
Power Production Type Natural Gas
Baths Three Quarter Garage 0
Baths Three Quarter Lower 0
Baths Three Quarter Main 0
Baths Three Quarter Upper 1
Bedrooms Lower 3
Bedrooms Upper 1
Baths Half Upper 0
Baths Half Main 1
Baths Half Lower 0
Baths Half Garage 0
Baths Full Upper 0
Baths Full Main 1
Baths Full Lower 2
Baths Full Garage 0
Bathrooms 4.25
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Exterior
Exterior Amenities Stone Wood
Vegetation Garden Space
Parking Features Attached Garage RV Parking
Water Source Public
Total Parking 3
Inclusions Dishwasher(s) Double Oven Dryer(s) Garbage Disposal Microwave(s) Refrigerator(s) Stove(s)/Range(s) Washer(s)
Foundation Details Poured Concrete
Building Area Total 5535
Lot Size Acres 0.505
Waterfront Y/N Y
Covered Spaces 3
Irrigation Water Rights Y/N N
Waterfront Footage 80
Site Features Cable TV Deck Dock Fenced-Fully High Speed Internet Moorage Outbuildings Patio RV Parking Sprinkler System
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Internal Only
OriginalMLSID NWM2572498
Street Number 1 4102
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* Excluded Features
List By
Joan C. Bayley

Listing Agent

Windermere Real Estate/East

Broker

Affordability Calculator

$46,920
Per Month
93%
7%
0%
Monthly Principal & Interest
$43,441
Monthly Property Taxes
$3,479
Monthly Home Insurance
--
Default based on a 30-year fixed rate of 6.49% with 20% down. The estimated payment is offered for convenience and is not an offer of credit. Due to market fluctuations, interest rates are subject to change at any time and without notice. Your individual rate may vary. Rates may differ for FHA, VA or jumbo loans.
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Nearby
3611445 Elementary School
1853914 Middle School
Mercer Isl High High School
Pricing History
DatePricePrice ChangeDescription
8/21/2026$6,880,000 Listed Price

Map


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4102 100th Avenue SE, Mercer Island, WA, 98040 is a Single Family Home for sale at $6,880,000 with 5,535 sqft and a lot size of 0.505. 4102 100th Avenue SE has 5 bedrooms, 4.1 baths, and was built in 2002. The property's zip code is 98040 which is in Mercer Island, WA