4889 Forest Avenue SE Mercer Island, WA $ 3,850,000
4889 Forest Avenue SE
$ 3,850,000
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Open House 6/20 1:30pm - 3:30pm
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4889 Forest Avenue SE

Mercer Island, WA, 98040
$ 3,850,000
Bedrooms5 Baths3.1 Sq 4,910

Monthly Estimate*

$ 23,705

Listed by COMPASS
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Single Family Home for sale in Mercer Island, WA

for $3,850,000 with 5 bedrooms and 3 full baths, 1 half bath. This 4,910 square foot home was built in 1982 on a lot size of 0.354.

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.

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Open House

6/20/2026 1:30 PM - 3:30 PM
6/21/2026 12:00 PM - 2:00 PM
4889 Forest Avenue SE Mercer Island, WA
* Some states or local ordinances may prohibit Open Houses at this time, please confirm with your Weichert agent or local rep to confirm

Single Family Active

Price

$ 3,850,000

Bedrooms

5

Full Bath

3

Half Bath

1

Property Type

Single Family

Taxes

$ 24,938

Style

Multi Level

Lot Size

0.354

Year Built

1982

Town/City

Mercer Island

County/Region

King

MLS | Web ID

2540446

Features
General
Living Area 4910
Sewer Sewer Connected
Heating Forced Air High Efficiency (Unspecified)
Cooling Central Air Forced Air
Possession Closing
Roof Composition
Appliances Dishwasher Disposal Double Oven Dryer Refrigerator Stove(s)/Range(s) Trash Compactor Washer
HOA Fee 2000
Security Features Partially Fenced Security System
Year Built 1982
View City Lake Mountains Territorial
Topography Level Partial Slope Terraces
Levels Multi/Split
Property Subtype Single Family Residence
Tax Year 2025
Community Features CCRs
Assoc Fee Paid Per Annually
County King
New Construction N
Property Type Residential
HOA Y
Attached Garage Y
Subdivision Name Westside
Garage Y/N Y
Full Baths 2
Special Listing Conditions None
Status Active
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.
High School Mercer Isl High
City Mercer Island
Entry Location Main
Senior Community Y/N N
High School District Mercer Island
MLS Area 510 - Mercer Island
Lot Size Units Square Feet
Lot Size Square Feet 15421
Carport Y/N N
Listing Terms Cash Conventional
Elementary School Buyer To Verify
Land Lease Y/N N
Tax Annual Amount 24938
Middle/Junior High School Islander Mid
Public Remarks 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 i
Virtual Tour https://player.vimeo.com/video/1201870645?h=2a7d6d2145&badge=0&autopause=0&player_id=0&app_id=58479
Structure Type House
Building Area Units Square Feet
Standard Status Active
Water Company City of Mercer Island
Property Style 15 - Multi Level
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Interior
Interior Amenities 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
Basement Daylight Finished
Flooring Ceramic Tile Hardwood Slate Vinyl Carpet
Total Fireplaces 3
Fireplace Features Gas Wood Burning
Air Conditioning Y/N Y
Heating Y/N Y
Fireplace Y/N Y
Half Baths 1
3/4 Baths 1
Total Bedrooms 5
Main Level Bedrooms 0
Total Baths 4
Fireplaces Upper 1
Fireplaces Main 2
Power Production Type Natural Gas
Baths Three Quarter Garage 0
Baths Three Quarter Lower 1
Baths Three Quarter Main 0
Baths Three Quarter Upper 0
Bedrooms Lower 1
Bedrooms Upper 4
Baths Half Upper 0
Baths Half Main 1
Baths Half Lower 0
Baths Half Garage 0
Baths Full Upper 2
Baths Full Main 0
Baths Full Lower 0
Baths Full Garage 0
Bathrooms 3.25
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Exterior
Exterior Amenities Stone Wood
Vegetation Garden Space Wooded
Parking Features Attached Garage
Lot Features Dead End Street Paved
Water Source Public
Total Parking 3
Inclusions Dishwasher(s) Double Oven Dryer(s) Garbage Disposal Refrigerator(s) Stove(s)/Range(s) Trash Compactor Washer(s)
Foundation Details Poured Concrete
Building Area Total 4910
Lot Size Acres 0.354
Waterfront Y/N N
Covered Spaces 3
Irrigation Water Rights Y/N N
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
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Internal Only
OriginalMLSID NWM2540446
Street Number 1 4889
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* Excluded Features
List By
Kelly Weisfield

Listing Agent

Compass

Broker

Affordability Calculator

$25,783
Per Month
92%
8%
0%
Monthly Principal & Interest
$23,705
Monthly Property Taxes
$2,078
Monthly Home Insurance
--
Default based on a 30-year fixed rate of 6.25% with 20% down. The estimated payment is offered for convenience and is not an offer of credit. Due to market fluctuations, interest rates are subject to change at any time and without notice. Your individual rate may vary. Rates may differ for FHA, VA or jumbo loans.
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Nearby
3100538 Elementary School
1853914 Middle School
Mercer Isl High High School
Pricing History
DatePricePrice ChangeDescription
6/17/2026$3,850,000 Listed Price

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4889 Forest Avenue SE, Mercer Island, WA, 98040 is a Single Family Home for sale at $3,850,000 with 4,910 sqft and a lot size of 0.354. 4889 Forest Avenue SE has 5 bedrooms, 3.1 baths, and was built in 1982. The property's zip code is 98040 which is in Mercer Island, WA