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4102 100th Avenue SEMercer Island, WA 98040

For Sale

$8,998,000

Smart Buyer Rebate $89,980

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!

Listed by Joan C. Bayley

·

Windermere Real Estate/East

Listed by Tere Foster

·

Windermere Real Estate/East

Last updated April 10, 2026

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Source: NWMLS #2501508

Listing Facts

  • TypeSingle-family
  • NeighborhoodEast Mercer
  • Bedrooms5
  • Bathrooms5
  • Days on Prevu24
  • Taxes$41,749/year
  • Size5,535 sqft
  • Price per sqft$1,626

Amenities

  • Dishwasher
  • Washer/Dryer
  • Pets Allowed
  • Air Conditioning
  • Parking

Location

Mortgage Calculator

Listing History

04/07/2026
Listed by Windermere Real Estate/East
$8,998,000

Property Details for 4102 100th Avenue SE

Exterior

Construction

  • Property Condition: Very Good
  • Roof: Composition
  • Structure Type: House
  • Year Built: 2010
  • Building Name: Lakeholm Addition
  • Construction Materials: Stone, Wood
  • Exterior Features: Stone, Wood

Features

  • Direction Faces: East
  • View: Lake, Mountains
  • Waterfront Features: Medium Bank
  • Waterfront: Yes

Measurements

  • Building Area Total: 5,535
  • Building Area Units: Square Feet
  • Lot Features: Dead End Street, Paved
  • Lot Size Acres: 0.50
  • Lot Size Square Feet: 22,000
  • Lot Size Units: Square Feet

Financial

Taxes

  • Parcel Number: 4131900045
  • Tax Annual Amount: $41,749.00
  • Tax Year: 2025

Interior

Features

  • Appliances: Dishwasher, Disposal, Double Oven, Dryer, Microwave, Refrigerator, Stove(s)/Range(s), Washer
  • Fireplace Features: Gas, Wood Burning
  • Fireplace: Yes
  • Fireplaces Total: 4
  • Flooring: Ceramic Tile, Hardwood, Slate, Carpet
  • 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

Measurements

  • Living Area: 5,535

Rooms

  • Basement: Daylight, Finished
  • Bathrooms Full: 3
  • Bathrooms Half: 1
  • Bathrooms Three Quarter: 1
  • Bathrooms Total Integer: 5
  • Bedrooms Total: 5
  • Main Level Bathrooms: 2
  • Main Level Bedrooms: 1

Other

Location

  • Subdivision Name: North End

Parking

Parking

  • Attached Garage: Yes
  • Covered Spaces: 3
  • Garage: Yes
  • Parking Features: Attached Garage, RV Parking
  • Parking Total: 3

Schools

Elementary School

  • Elementary School: Buyer To Verify

High School

  • High School: Mercer Isl High
  • High School District: Mercer Island

Middle or Junior School

  • Middle Or Junior School: Islander Mid

Utilities

Equipment

  • Has Cooling: Yes
  • Has Heating: Yes
  • Sewer: Sewer Connected
  • Water Source: Public

Frequently Asked Questions

How many bedrooms and bathrooms does this single-family home have?

There are 5 bedrooms and 5 bathrooms in this single-family home at 4102 100th Avenue SE.

What schools are nearby to 4102 100th Avenue SE?

Nearby schools include the Buyer To Verify Elementary School, Islander Mid Middle School, and Mercer Isl High.

Does this single-family home have parking?

Yes, there are 3 parking spaces available for 4102 100th Avenue SE.

What are the annual taxes for 4102 100th Avenue SE?

Annual taxes for this single-family home are estimated at $41,749.

How does 4102 100th Avenue SE compare to other single-family homes in East Mercer?

This single-family home is listed 119% above the average price for single-family homes in East Mercer and has been on the market for 1 less day than the typical home in this area.

What building or home owners association is the single-family home part of?

This single-family home is in the Lakeholm Addition building.

What is the square footage on this single-family home?

According to the MLS, this listing is 5,535 sqft.

4102 100th Avenue SE is a 5-bedroom, 5-bath single-family home for sale in Mercer Island WA 98040. On Prevu for 24 days at $8,998,000. This residence features 5,535 square feet of living space, located in Mercer Island. The median listing price for single-family homes in this area is $3,998,000. Nearby schools include Buyer To Verify Elementary School, Islander Mid Middle School, and Mercer Isl High. Additional amenities include dishwasher, pets allowed, air conditioning, parking, and washer/dryer. View other single-family home listings in Mercer Island.

Based on information from NWMLS and/or other sources. All data, including all measurements and calculations of area, is obtained from various sources and has not been, and will not be, verified by Prevu or the MLS. Information is provided exclusively for consumer's personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumer may be interested in purchasing.

Full MLS Disclaimers

Rebate estimate is indicative only and based on listing price and estimated buyer's agent commission paid by owner, if applicable. Final rebates are subject to Terms of Use and may vary due to final negotiated transaction terms.