4835 Forest Avenue SE, Mercer Island, WA 98040 (MLS # 2551386)

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Listing provided courtesy of Northwest MLS; Windermere Mercer Island

PRICE $5,450,000 dsIDX morgage calculator
BEDS 3
BATHS 3.75
HOME SIZE 3,670 sqft
LOT SIZE 20,596 sqft

There is still time to spend your summer playing on sparkling Lake Washington! With a tempting new price, opportunity beckons you to seize this rare chance to own a west-facing waterfront estate on Mercer Island's premier Gold Coast. Its exceptional street-to-water lot encompasses nearly half an acre edged by 53 feet of prized western shoreline. You'll savor front row views across the lake to the Seattle skyline and Seward Park, arguably among the most breathtaking vistas on the Island. Fully rebuilt in 2017, the massive, covered dock is a boater's dream complete with two boat lifts"”one ready to accommodate a vessel up to 50,000 pounds. A grandfathered boathouse at the water's edge is a true rarity that can no longer be replicated under today's shoreline regulations. After a day making memories out on the lake, colorful sunsets carry you home to your waterside lawn and beautifully terraced walkway leading up to even more views from the house. The main residence plus a separate apartment above are offered as a blank canvas ready for your vision...whether that's a thoughtful renovation of the original mid-century design, or a ground-up rebuild to fully capture this irreplaceable setting. Add your signature style and create a new legacy to be loved for generations to come. Waterfront aficionados will recognize this extraordinary, diamond in the rough prospect to secure incredible views, coveted waterfront, and a boater's dock that simply can't be recreated.

LAST UPDATED 7/8/2026 TRACT Westside
YEAR BUILT 1958 COMMUNITY Westside
COUNTY King STATUS Active
PROPERTY TYPE(S) Single Family

SCHOOLS
Elementary School Buyer To Verify
Jr. High School Islander Mid
High School Mercer Isl High


ADDITIONAL DETAILS
AIR Ductless
AIR CONDITIONING Yes
APPLIANCES Dishwasher, Disposal, Double Oven, Dryer, Gas Water Heater, Microwave, Refrigerator, Washer, Water Heater
AREA 510 - Mercer Island
BASEMENT Daylight, Partially Finished, Yes
CONSTRUCTION Metal Siding, Vinyl Siding
EXTERIOR Garden
FIREPLACE Yes
HEAT Baseboard, Ductless , Electric, Natural Gas, Radiant
INTERIOR Dbl Pane/Storm Window, Dining Room, Fireplace, Fireplace (Primary Bedroom), Jetted Tub, Security System, Sprinkler System, Vaulted Ceiling(s), Walk-In Closet(s), Water Heater, Wine Cellar, Wired for Generator
LOT 0.4728 acre(s)
LOT DESCRIPTION Dead End Street, Paved
MLS STATUS Active
PARKING Attached Carport, Driveway, Off Street
STORIES 2
STYLE 18 - 2 Stories w/Bsmnt
SUBDIVISION Westside
TAXES 31124
UTILITIES Cable Available, Sewer Connected
VIEW Yes
VIEW DESCRIPTION City, Lake, Mountain(s), Territorial
WATER Public
WATERFRONT Yes
WATERFRONT DESCRIPTION Lake, Waterfront
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Properties with the Logo icon are courtesy of Northwest MLS.

Listings courtesy of Northwest MLS as distributed by MLS GRID. Based on information submitted to the MLS GRID as of 7/9/26 10:05 AM PDT. All data is obtained from various sources and may not have been verified by broker or MLS GRID. IDX information is provided exclusively for consumers’ personal noncommercial use, that it may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. 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.

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