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Version: ...
For Sale
4 Days Online
$12,000,000
5 Bedrooms
1.75 Bathrooms
5,100 Sqft House (3,140 Finished)
Waterfront
Built 1947
33,742 Sqft Lot
3-Car Garage
Sylvan Reach combines two parcels, two waterfronts in a once-in-a-generation waterfront holding on southwest Mercer Island encompassing 220 feet of southwest-facing Lake Washington shoreline across over 3/4 acre from street to water, featuring three docks, two homes, and a log cabin. This extraordinary two-parcel offering delivers rare scale, privacy, and long-term potential. The low-to-mid bank waterfront includes a 65-foot deep-water yacht moorage, a swimming dock, and a 30-foot boat dock. Set among evergreens and frequented by eagles, the land unfolds from elevated outlooks with views toward Mount Rainier down to the water’s edge. Three existing structures—each positioned for privacy and separation—offer immediate use while preserving flexibility for a future legacy vision. Whether reimagined as a singular estate or thoughtfully divided into two substantial homes, the site invites a buyer with patience, creativity, and a long horizon. Accessed by private driveways from both the north and south, the property offers rare seclusion without sacrificing proximity to town, parks, and transit. Sylvan Reach represents one of the most significant remaining waterfront opportunities on Mercer Island—an irreplaceable canvas for those seeking privacy, scale, and a lasting connection to land, light, and water. Enjoy one of the longest arcs of sun in Seattle. Survey and Feasibility for waterfront property available.
Offer Review
Will review offers when submitted
Listing source NWMLS MLS #
2478334
Listed by
Diane Tien,
Realogics Sotheby's Int'l Rlty
Contact our
Mercer Island Waterfront
Real Estate Lead
SECOND
BDRM
BDRM
FULL
BATH
BATH
MAIN
BDRM
BDRM
¾
BATHLOWER
BDRM
Feb 11, 2026
Listed
$12,000,000
NWMLS #2478334
-
StatusFor Sale
-
Price$12,000,000
-
Original PriceSame as current
-
List DateFebruary 11, 2026
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Last Status ChangeFebruary 11, 2026
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Last UpdateFebruary 12, 2026
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Days on Market4 Days
-
Cumulative DOM4 Days
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$/sqft (Total)$2,353/sqft
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$/sqft (Finished)$3,822/sqft
-
Listing Source
-
MLS Number2478334
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Listing BrokerDiane Tien
-
Listing OfficeRealogics Sotheby's Int'l Rlty
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Principal and Interest$62,905 / month
-
Property Taxes$1,884 / month
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Homeowners Insurance$1,946 / month
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TOTAL$66,735 / month
-
-
based on 20% down($2,400,000)
-
and a6.85% Interest Rate
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About:All calculations are estimates only and provided by Mainview LLC. Actual amounts will vary.
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Sqft (Total)5,100 sqft
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Sqft (Finished)3,140 sqft
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Sqft (Unfinished)1,960 sqft
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Property TypeHouse
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Sub Type2 Stories + Basement
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Bedrooms5 Bedrooms
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Bathrooms1.75 Bathrooms
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Lot33,742 sqft Lot
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Lot Size SourceKCR
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Lot #Unspecified
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ProjectHillmans CD Seashore Lakefront
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Total Stories3 stories
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BasementDaylight
Partially Finished -
Sqft SourceKCR
-
2025 Property Taxes$22,602 / year
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No Senior Exemption
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CountyKing County
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Parcel #3358500020
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County Website
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County Parcel Map
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County GIS Map
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AboutCounty links provided by Mainview LLC
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School DistrictMercer Island
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ElementaryLakeridge Elem
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MiddleIslander Mid
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High SchoolMercer Isl High
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WaterfrontYes
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TypeLow Bank
Medium Bank
Lake -
Frontage120 Feet
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HOA DuesUnspecified
-
Fees AssessedUnspecified
-
HOA Dues IncludeUnspecified
-
HOA ContactUnspecified
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Management Contact
-
Covered3-Car
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TypesDetached Carport
Detached Garage
None -
Has GarageYes
-
Nbr of Assigned Spaces3
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Lake
Mountain(s)
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Year Built1947
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Home BuilderUnspecified
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IncludesNone
-
IncludesForced Air
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FlooringStone
Carpet -
FeaturesDbl Pane/Storm Window
Dining Room
Fireplace
Loft
Skylight(s)
Walk-In Closet(s)
Water Heater
Wine/Beverage Refrigerator
Wired for Generator
-
Lot FeaturesDead End Street
Paved
Secluded
Value In Land -
Site FeaturesDeck
Dock
Irrigation
Moorage
Propane
Sprinkler System
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IncludedDishwasher(s)
Disposal
Dryer(s)
Microwave(s)
Refrigerator(s)
Stove(s)/Range(s)
Washer(s)
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3rd Party Approval Required)No
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Bank Owned (REO)No
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Complex FHA AvailabilityUnspecified
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Potential TermsAssumable
Cash
-
EnergyElectric
Oil -
SewerSewer Connected
-
Water SourceLake
Public
-
WaterfrontYes
-
Air Conditioning (A/C)No
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Buyer Broker's Compensation2%
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MLS Area #Area 510
-
Number of Photos37
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Last Modification TimeThursday, February 12, 2026 1:19 PM
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System Listing ID5518038
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First For Sale2026-02-11 13:05:21
Listing details based on information submitted to the MLS GRID as of Thursday, February 12, 2026 1:19 PM.
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.
Sharing
For Sale
4 Days Online
$12,000,000
5 BR
1.75 BA
5,100 SQFT
Offer Review: Anytime
NWMLS #2478334.
Diane Tien,
Realogics Sotheby's Int'l Rlty
|
Listing information is provided by the listing agent except as follows: BuilderB indicates
that our system has grouped this listing under a home builder name that doesn't match
the name provided
by the listing broker. DevelopmentD indicates
that our system has grouped this listing under a development name that doesn't match the name provided
by the listing broker.