4835 Forest Avenue SE, Mercer Island, WA 98040 (MLS # 2535485)

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Listing provided courtesy of Northwest MLS; Windermere Mercer Island

PRICE $5,750,000 dsIDX morgage calculator
BEDS 3
BATHS 3.75
HOME SIZE 3,670 sqft
LOT SIZE 20,596 sqft
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Opportunity knocks with a rare chance to own one of Mercer Island's most coveted street-to-water waterfront estates. Set on nearly half an acre edged by 53 feet of prized west-facing shoreline, this extraordinary property captures sweeping views across Lake Washington to the Seattle skyline and Seward Park"”arguably among the most breathtaking vistas on the Island. Iconic mid-century design incorporates walls of glass crowned by lofty clear cedar ceilings that frame the ever-changing panorama. Flow out from spacious gathering areas to expansive waterfront terraces. Views continue into the fireside primary suite, while a separate apartment above the main residence offers flexibility for guests, extended living, or future possibilities. Terraced grounds lead down to the water's edge, beckoning you to swim, boat, entertain, and watch spectacular sunsets paint the sky. Launch days on the lake from your covered dock with two boat lifts, one ready to accommodate a vessel up to 50,000 pounds. Don't miss the grandfathered boathouse...a rarity that can no longer be replicated! Rich with history from its classic 1950s roots, this is more than just a home"”it is a legacy awaiting its next chapter. Whether you choose to enjoy it as-is, thoughtfully renovate, or create your own waterfront masterpiece, the setting is simply irreplaceable. Secure this premier Mercer Island waterfront lifestyle and make new memories for generations to come.

LAST UPDATED 6/11/2026 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 6/13/26 10:33 PM 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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