Property Details
4889 Forest Avenue SE
Mercer Island, WA 98040
$3,850,000
Active
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About This Home
Coveted Westside Shared Waterfront! Enjoy the best of Mercer Island waterfront living with boat moorage, 100' of community beach, a new dock, boat lift, and beautifully refreshed beachfront grounds. Set in a sought-after mid-Island neighborhood, this updated home blends lake views, dramatic architecture, and exceptional spaces for gathering, entertaining, and everyday living. Soaring ceilings and walls of windows fill the open great room with natural light, flowing seamlessly to an expansive IPE deck overlooking the sport court and turf lawn. The gourmet kitchen anchors the home with high-end appliances and stylish updates, while a dedicated office, formal dining room, and lake-view living room provide space for every occasion. Upstairs, four bedrooms include a serene lake-view primary suite with a flexible bonus room, walk-in closets, and a luxurious 5-piece bath. A rooftop patio offers the perfect spot to unwind with sunset skies and sparkling water views. The lower level features a spacious rec room, wine cellar, and guest suite – ideal for hosting the crowd. Extensively updated with a new roof, windows, paint, automated blinds, A/C, and furnace. Oversized 3-car garage, storage shed, and bonus storage room. A rare opportunity to enjoy boating, beach days, and an exceptional Mercer Island lifestyle.
Property Details
Property Information
Property Type
Residential
Subtype
Single Family Residence
Status
Active
County
King
Neighborhood
Westside
Listed
Jun 16, 2026
Structure Type
House
Parcel Number
9332700070
Tax & HOA
Annual Property Tax
$24,938 (2025)
Est. Monthly Tax
$2,078/mo
HOA Fee
$2,000/annually
Interior Features
Bedrooms
5
Bathrooms
3.3
Half Baths
1
Living Area
4,910 sq ft
Basement
Daylight, Finished
Entry Level
Main
Interior Features
Bath Off Primary, Dbl Pane/Storm Window, Dining Room, Fireplace, Fireplace (Primary Bedroom), French Doors, High Tech Cabling, Jetted Tub, Loft, Security System, Skylight(s), Vaulted Ceiling(s), Walk-In Closet(s), Wine Cellar, Wine/Beverage Refrigerator
Exterior & Lot
Lot Size
0.35 sqft
Year Built
1982
Exterior Materials
Stone, Wood
Parking
Attached Garage
Sewer
Sewer Connected
Water Source
Public
Lot Features
Dead End Street, Paved
Exterior Features
Stone, Wood
Community & Access
Community Features
CCRs
Directions
Heading South on West Mercer Way, right on 84th Ave SE. Right again on Forest Ave SE. Follow down toward water. Home is at the bottom of the road on the left.
Location
City
Mercer Island
County
King
Coordinates
47.55801, -122.22954
Schools
School District
Mercer Island
Elementary School
Buyer To Verify
Middle School
Islander Mid
High School
Mercer Isl High
HOA / Association
HOA Fee
$2,000 / Annually
Additional Information
Tax Year
2025
Annual Taxes
$24,938
Possession
Array
Community Features
CCRs
Inclusions
Dishwasher(s),Double Oven,Dryer(s),Garbage Disposal,Refrigerator(s),Stove(s)/Range(s),Trash Compactor,Washer(s)
Mortgage Calculator
Estimated Monthly Payment
$0
Down Payment
$0
Loan Amount
$0
Provided by Beyond Real Estate, LLC
Based on information submitted to the MLS GRID as of June 23, 2026 6:15 PM. 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.
IDX information is provided exclusively for consumers’ personal, non-commercial use, and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Copyright 2026 NWMLS. All rights reserved.
IDX information is provided exclusively for consumers’ personal, non-commercial use, and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Copyright 2026 NWMLS. All rights reserved.
