Rockhood
$3,650,000List price
5 bed · 3.5 bath · 4,910 sq ft
Active

4889 Forest Avenue SE · Mercer Island, WA 98040

Source: NWMLS · COMPASS · Kelly Weisfield #NWM2568232

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.

Location

Basics

Property type
Single Family Residence
Style
Multi Level
Stories
Multi/split level
Year built
1982
Lot size
15,421 sq ft (0.35 acres)
County
King
MLS #
NWM2568232

Interior

Heating
Forced Air, High Efficiency (Unspecified)
Cooling
Central Air, Forced Air
Flooring
Ceramic Tile, Hardwood, Slate, Vinyl, Carpet
Appliances
Dishwasher, Disposal, Double Oven, Dryer, Refrigerator, Stove(s)/Range(s), Trash Compactor, Washer
Fireplace
3 · Gas, Wood Burning
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
Entry level
Main

Exterior & lot

Exterior features
Stone, Wood
Roof
Composition
Foundation
Poured Concrete
Lot features
Dead End Street, Paved
Topography
Level,Partial Slope,Terraces
View
City, Lake, Mountains, Territorial
Waterfront
No

Parking

Parking spaces
3
Garage
Yes (attached)
Covered spaces
3
Parking features
Attached Garage

Utilities

Water
Public
Sewer
Sewer Connected
Power
Natural Gas

Community & fees

Subdivision
Westside
Community features
CCRs
HOA dues
$2,000/yr
Property tax
$24,938 (2025)

Transaction

Listed on
Aug 12, 2026
Days on market
96
Price per sq ft
$743
Listing terms
Cash, Conventional
Possession
Closing

More homes nearby

Sale history

Earlier listings of this home on the MLS.

2018-10-01
Sold$2,950,000
2006-11-30
Sold$1,816,000

Schools

School district: Mercer Island

Elementary
Buyer To Verify
Middle
Islander Mid
High
Mercer Island High School
SchoolDigger 5 stars · Top 1% in WA

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Listing provided courtesy of: COMPASS

Listing agent: Kelly Weisfield.

Based on information submitted to the MLS GRID as of . 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 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. Information is deemed reliable but not guaranteed.

Data last updated 2026-09-16.