$8,495,000
ActiveListing provided by Joan C. Bayley, Windermere Real Estate/East
5
Beds
5
Baths
5,535
Sq Ft
78
DOM
About this property.
Get on the lake this summer and jump into one of the best waterfront investment opportunities on Lake Washington. This Northend Retreat showcases 90 ft of shoreline, a pancake flat lawn, a newer dock, and a guest house at the water’s edge. 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!
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#: 2543693
Listing data deemed reliable but not guaranteed. Based on information submitted to the MLS GRID as of 06/24/2026, 12:15:30 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
$8,495,000
Active4102 100th Avenue SE, Mercer Island, WA 98040
5
Beds
5
Baths
5,535
Sq Ft
0.51
Lot Acres
2010
Year Built
78
Days on Market
About This Property
Get on the lake this summer and jump into one of the best waterfront investment opportunities on Lake Washington. This Northend Retreat showcases 90 ft of shoreline, a pancake flat lawn, a newer dock, and a guest house at the water’s edge. 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!
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#: 2543693
Listing data deemed reliable but not guaranteed. Based on information submitted to the MLS GRID as of 06/24/2026, 12:15:30 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.