4102 100th Avenue SE Mercer Island, WA $ 8,998,000
4102 100th Avenue SE
$ 8,998,000
Recently Listed
Open House 4/10 3pm - 5pm
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4102 100th Avenue SE

Mercer Island, WA, 98040
$ 8,998,000
Bedrooms5 Baths4.1 Sq 5,535

Monthly Estimate*

$ 55,402

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

for $8,998,000 with 5 bedrooms and 4 full baths, 1 half bath. This 5,535 square foot home was built in 2010 on a lot size of 0.505.

A Modern Craftsman has come available on the desirable north end! Offering 90 feet of sparkling waterfront, a boater's dream dock & an unforgettable beachside guest house, this exceptional property is set on a 1/2 acre of richly manicured grounds w/ a pancake flat lawn stretching right to the water's edge. Inside, experience timeless architectural detail...chubby triple crown molding, board-and-batten 3/4 wainscot, an absolute exquisite level of craftsmanship awaits. Entertain in the Epicurean's dream kitchen where a massive island anchors the rm, offering space for gathering, prepping & entertaining. Flow seamlessly into the Great Rm, where an entire window wall & double sets of French doors open, blurring the line between the outdoors & the in. A separate upper wing hosts an expansive office/apartment suite w/ kitchenette ideal for work, guests, or multigenerational living. Retreat to the main flr primary, a sanctuary in itself, w/ stunning views & bath area reminiscent of a Four Seasons spa. 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 1-bdrm beachhouse w/ upper view loft that could be the perfect music rm, office or art studio. 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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Open House

4/10/2026 3:00 PM - 5:00 PM
4102 100th Avenue SE Mercer Island, WA
* Some states or local ordinances may prohibit Open Houses at this time, please confirm with your Weichert agent or local rep to confirm

Single Family Active

Price

$ 8,998,000

Bedrooms

5

Full Bath

4

Half Bath

1

Property Type

Single Family

Taxes

$ 41,749

Style

2 Stories w/Bsmnt

Lot Size

0.505

Year Built

2010

Town/City

Mercer Island

County/Region

King

MLS | Web ID

2501508

Features
General
Living Area 5535
Sewer Sewer Connected
Heating 90%+ High Efficiency
Cooling Central Air Heat Pump
Possession Closing
Roof Composition
Appliances Dishwasher Disposal Double Oven Dryer Microwave Refrigerator Stove(s)/Range(s) Washer
HOA Fee 0
Security Features Partially Fenced Security System
Year Built 2010
View Lake Mountains
Topography Level Partial Slope
Levels Two
Property Subtype Single Family Residence
Tax Year 2025
Waterfront Features Medium 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
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 Buyer To Verify
Land Lease Y/N N
Tax Annual Amount 41749
Middle/Junior High School Islander Mid
Property Condition Very Good
Public Remarks A Modern Craftsman has come available on the desirable north end! Offering 90 feet of sparkling waterfront a boater's dream dock & an unforgettable beachside guest house this exceptional property is
Virtual Tour https://player.vimeo.com/video/1180972723?h=6f4c9518cb&
Structure Type House
Building Area Units Square Feet
Standard Status Active
Water Company City of Mercer Island
Property Style 18 - 2 Stories w/Bsmnt
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Interior
Interior Amenities 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
Basement Daylight Finished
Flooring Ceramic Tile Hardwood Slate Carpet
Total Fireplaces 4
Fireplace Features Gas Wood Burning
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
Water Heater Type Gas (3)
Water Heater Location Mechanical Room
Fireplaces Main 2
Fireplaces Lower 2
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
Lot Features Dead End Street Paved
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 Y
Waterfront Footage 90
Site Features Cable TV Deck Dock Fenced-Partially Gas Available Irrigation Moorage Outdoor Fireplace Patio RV Parking Sprinkler System
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Internal Only
OriginalMLSID NWM2501508
Street Number 1 4102
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* Excluded Features
List By
Joan C. Bayley

Listing Agent

Windermere Real Estate/East

Broker

Affordability Calculator

$58,881
Per Month
94%
6%
0%
Monthly Principal & Interest
$55,402
Monthly Property Taxes
$3,479
Monthly Home Insurance
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Default based on a 30-year fixed rate of 6.25% 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
3100538 Elementary School
1853914 Middle School
Mercer Isl High High School
Pricing History
DatePricePrice ChangeDescription
4/8/2026$8,998,000 Listed Price

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4102 100th Avenue SE, Mercer Island, WA, 98040 is a Single Family Home for sale at $8,998,000 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 2010. The property's zip code is 98040 which is in Mercer Island, WA