$8,998,000
ActiveListing provided by Joan C. Bayley, Windermere Real Estate/East
5
Beds
5
Baths
5,535
Sq Ft
36
DOM
About this property.
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!
Property details.
Features.
Interior
Exterior
Heating
Cooling
Flooring
View
Waterfront
Site Features
Agent information.
Schedule a Showing
Pick a day and time, and Austin will follow up to confirm.
By continuing, you consent to be contacted by Welcome to Whatcom and John L. Scott - Bellingham about this showing via call, text, or email.
Listed by: Joan C. Bayley, Windermere Real Estate/East
Courtesy of Windermere Real Estate/East
Source: NWMLS, MLS#: 2501508
Listing data deemed reliable but not guaranteed. Based on information submitted to the MLS GRID as of 05/14/2026, 11:45:26 PST. 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. Provided by NWMLS as distributed by MLS Grid.
IDX information is provided exclusively for consumers' personal, noncommercial use. It may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. The data is deemed reliable but is not guaranteed by MLS GRID.
Any use or search of data on this website, other than by a consumer looking to purchase real estate, is prohibited.
Listed by Joan C. Bayley, Windermere Real Estate/East
$8,998,000
Active4102 100th Avenue SE, Mercer Island, WA 98040
5
Beds
5
Baths
5,535
Sq Ft
0.51
Lot Acres
2010
Year Built
36
Days on Market
About This Property
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!
Property Details
Features
Interior
Exterior
Heating
Cooling
Flooring
View
Waterfront
Site Features
Agent Information
Schedule a Showing
Pick a day and time, and Austin will follow up to confirm.
By continuing, you consent to be contacted by Welcome to Whatcom and John L. Scott - Bellingham about this showing via call, text, or email.
Listed by: Joan C. Bayley, Windermere Real Estate/East
Courtesy of Windermere Real Estate/East
Source: NWMLS, MLS#: 2501508
Listing data deemed reliable but not guaranteed. Based on information submitted to the MLS GRID as of 05/14/2026, 11:45:26 PST. 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. Provided by NWMLS as distributed by MLS Grid.
IDX information is provided exclusively for consumers' personal, noncommercial use. It may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. The data is deemed reliable but is not guaranteed by MLS GRID.
Any use or search of data on this website, other than by a consumer looking to purchase real estate, is prohibited.