4102 100th Avenue SE

Mercer Island, WA 98040

  • 5 Bed

  • 3.5 Bath

  • 5535 SqFt

  • 1 DOM

  • Built: 2010

  • Status: Active

$8,998,000

X

4102 100th Avenue SE

Mercer Island 98040

Open Wed, Apr 8th, 11AM to 2PM

$8998000

  • 5 Bed

  • 3.5 Bath

  • 5535 SqFt

  • 1 DOM

  • Built: 2010

  • Status: Active

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Krishna Regupathy

Principal Broker

(503) 893-8874

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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Residence Information

  • 5535

  • 4/Gas

  • 5

  • 3

  • 1

  • 3.5

  • Composition

  • 18 - 2 Stories w/Bsmnt

  • 2010

  • Daylight, Finished

  • Daylight, Finished

  • Poured Concrete

Features and Utilities

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

  • Second Kitchen, Bath Off Primary, Built-In Vacuum, Dbl Pane/Storm Window, Dining Room, Fireplace, Fr

  • Stone, Wood

  • Public

  • Sewer Connected

Financial

  • 41749

  • Cash, Conventional

  • 04-07-2026

Comparable Information

  • 1

  • 1

  • Cash, Conventional

  • $8,998,000

  • $8,998,000

  • Apr 08, 2026 02:25

Schools

Elementary : Buyer To Verify N/A Ratings
Middle : Islander Mid N/A Ratings
High : Mercer Isl High N/A Ratings

Map

Listing courtesy of Windermere Real Estate/East.

The content relating to real estate for sale on this site comes in part from the IDX program of the NWMLS of Seattle, Washington. Real Estate listings held by brokerage firms other than this firm are marked with the NWMLS logo, and detailed information about these properties include the name of the listing's broker. Listing content is copyright © 2026 NWMLS of Seattle, Washington. All information provided is deemed reliable but is not guaranteed and should be independently verified. Krishna Realty data last checked: Apr 08, 2026 04:15 | Listing last modified Apr 08, 2026 02:25. Some properties which appear for sale on this web site may subsequently have sold or may no longer be available.

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