About 4102 100th Avenue Se
Undeniably the best waterfront value of the summer! Invest in not one home but two: a 5 bedrm main residence with an apartment/office suite plus a separate 1 bedrm guest house right at the water’s edge. This Northend Retreat showcases 90 ft of shoreline, a pancake flat lawn, a newer dock. 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!
Features of 4102 100th Avenue Se
| MLS® # | 2572498 |
|---|---|
| Price | $6,880,000 |
| Bedrooms | 5 |
| Bathrooms | 4.25 |
| Full Baths | 3 |
| Half Baths | 1 |
| Square Footage | 5,535 |
| Acres | 0.51 |
| Year Built | 2002 |
| Type | Residential |
| Sub-Type | Single Family Residence |
| Style | Craftsman |
| Status | Active |
Community Information
| Address | 4102 100th Avenue Se |
|---|---|
| Area | 510 - Mercer Island |
| Subdivision | North End |
| City | Mercer Island |
| County | King |
| State | WA |
| Zip Code | 98040 |
Amenities
| Parking Spaces | 3 |
|---|---|
| Parking | Attached Garage, RV Parking |
| View | Lake, Mountains |
| Is Waterfront | Yes |
| Waterfront | High Bank, Low Bank |
Interior
| Interior Features | Second Kitchen, Second Primary Bedroom, Bath Off Primary, Dbl Pane/Storm Window, Fireplace, Pantry, Security System, Vaulted Ceiling(s), Walk-In Closet(s), Wine Cellar |
|---|---|
| Appliances | Dishwasher, Disposal, Double Oven, Dryer, Microwave, Refrigerator, Stove(s)/Range(s), Washer |
| Heating | Forced Air |
| Cooling | Central Air |
| Fireplace | Yes |
| # of Fireplaces | 2 |
| Fireplaces | Gas |
Exterior
| Exterior Features | Stone, Wood |
|---|---|
| Foundation | Poured Concrete |
School Information
| District | Mercer Island |
|---|---|
| Elementary | Northwood Elem |
| Middle | Islander Mid |
| High | Mercer Isl High |
Additional Information
| Date Listed | August 21st, 2026 |
|---|---|
| Days on Market | 149 |
| Foreclosure | No |
| Short Sale | No |
| RE / Bank Owned | No |
Listing Details
| Office | Windermere Real Estate/East |
|---|