


4889 Forest Avenue SEMercer Island, WA 98040
Single Family · 5 Beds · 2 Full Baths · 1 Half Bath · 1 Three Quarter Bath · 4,910 Sq. ft. | 0.35 Acres4889 Forest Avenue SE Overview
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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.
4889 Forest Avenue SE Facts & Features
- Type Single Family
- Sq. ft. 4,910
- Price/Sq.ft. $784
- Lot 0.35 Acres
Details
General
Association/HOA
- Association Fee: $2,000.00
- Association Fee Frequency: Annually
School Information
- School District: Mercer Island
- Elementary School: Buyer To Verify
- Middle Or Junior School: Islander Mid
- High School: Mercer Isl High
Building Information
- New Construction: No
- Year Built: 1982
Location/Region
- Country: US
- County Or Parish: King
- MLS Area Major: 510 - Mercer Island
- Subdivision Name: Westside
Community/Development
- Community Features: CCRs
Rent/Lease Information
- Land Lease: No
Tax Information
- Tax Annual Amount: $24,938.00
- Tax Year: 2025
General Information
- Inclusions: Dishwasher(s), Double Oven, Dryer(s), Garbage Disposal, Refrigerator(s), Stove(s)/Range(s), Trash Compactor, Washer(s)
- Listing Terms: Cash, Conventional
- Parcel Number: 9332700070
- Property Sub Type: Single Family Residence
- Property Type: Residential
- Senior Community: No
- Special Listing Conditions: None
Interior
Building Information
- Building Information: Built On Lot
Parking Information
- Garage: Yes
Beds/Baths
- Bathrooms Full: 2
- Bathrooms Half: 1
- Bathrooms Three Quarter: 1
- Bathrooms Total: 4
- Bedrooms Total: 5
- Bedrooms Lower: 1
- Bedrooms Upper: 4
Building Interior
- Appliances Included: Dishwasher(s), Double Oven, Dryer(s), Garbage Disposal, Refrigerator(s), Stove(s)/Range(s), Trash Compactor, Washer(s)
- Building Area Total: 4910
- Building Area Units: Square Feet
- Calculated Square Footage: 4910
- Square Footage Finished: 4910
- Square Footage Unfinished: 0
General Information
- Appliances: Dishwasher, Disposal, Double Oven, Dryer, Refrigerator, Stove(s)/Range(s), Trash Compactor, Washer
- Basement: Daylight, Finished
- Cooling: Yes
- Entry Location: Main
- Fireplace Features: Gas,Wood Burning
- Fireplace: Yes
- Fireplaces Total: 3
- Flooring: Ceramic Tile, Hardwood, Slate, Vinyl, Carpet
- Foundation Details: Poured Concrete
- Heating: Yes
- 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
- Levels: Multi/Split
- Living Area: 4910
- Main Level Bathrooms: 1
- Main Level Bedrooms: 0
- Power Production Type: Natural Gas
- Security Features: Partially Fenced,Security System
Exterior
Parking Information
- Open Parking: No
- Parking Features: Attached Garage
- Parking Total: 3
Lot Information
- Irrigation Water Rights: No
- Lot Features: Dead End Street, Paved
- Lot Size Acres: 0.354
- Lot Size Square Feet: 15421
- Lot Size Units: Square Feet
- Site Features: Athletic Court, Cable TV, Deck, Dock, Fenced-Partially, Gas Available, High Speed Internet, Moorage, Outbuildings, Outdoor Fireplace, Patio, Rooftop Deck, Shop, Sprinkler System
- Topography: Level, Partial Slope, Terraces
- Vegetation: Garden Space,Wooded
- Elevation Units: Feet
- Water Source: Public
Waterfront/View
- Waterfront: No
Building Exterior/Construction
- Attached Garage: Yes
- Roof: Composition
- Structure Type: House
General Information
- Carport: No
- Covered Spaces: 3
- Exterior Features: Stone, Wood
- Sewer: Sewer Connected
Room Information
Room: Bathroom Three Quarter
- Level: Lower
Room: Bedroom
- Level: Lower
Room: Extra Fin Room
- Level: Lower
Room: Rec Room
- Level: Lower
Room: Bathroom Half
- Level: Main
Room: Den/Office
- Level: Main
Room: Dining Room
- Level: Main
Room: Entry Hall
- Level: Main
Room: Great Room
- Level: Main
Room: Kitchen With Eating Space
- Level: Main
Room: Living Room
- Level: Main
Room: Bathroom Full
- Level: Second
Room: Bedroom
- Level: Second
Room: Bedroom
- Level: Second
Room: Bedroom
- Level: Second
Room: Bathroom Full
- Level: Third
Room: Primary Bedroom
- Level: Third
4889 Forest Avenue SE Neighborhood
Community
98040 (Mercer Island) Demographics
Schools
School data courtesy of LiveBy, Inc. School ratings are based on a scale of 1-5, with 5 being the highest rating and 1 being the lowest rating.4889 Forest Avenue SE Monthly Cost
4889 Forest Avenue SE Market Data
Based on the last 30 days in this zip code
4889 Forest Avenue SE History
| Date | Value | Agent |
|---|---|---|
| 6/16/2026Source: NWMLS | June 16, 2026 |
|
| 6/20/2022Source: NWMLS | June 01, 2021 |
|
| 6/20/2022Source: NWMLS | June 01, 2021 |













































