Save
Ask
Tour
Hide
$8,488,000
4 Days On Site
7909 78th Avenue SEMercer Island, WA98040
For Sale|Single Family Residence|Active
7
Beds
11
Total Baths
4
Full Baths
7
Partial Baths
9,340
SqFt
$909
/SqFt
1996
Built
Cumulative Days On Market:
173
Subdivision:
Mercer Island
County:
King
Courtesy of NWMLS
Listing courtesy of Helena Chen of eXp Realty
Listing courtesy of Helena Chen of eXp Realty
Due to the health concerns created by Coronavirus we are offering personal 1-1 online video walkthough tours where possible.
Call Now: 253-268-1714
Is this the listing for you? We can help make it yours.
253-268-1714Upcoming Open Houses
Due to COVID-19, we recommend you verify Open Houses before attending.
Sat, Aug 23, 2:30 PM - 4:30 PM
Sun, Aug 24, 12:00 PM - 2:00 PM
Save
Ask
Tour
Hide
Perched above Lake Washington with expansive views, this custom estate showcases exquisite cherry millwork throughout. The main-level primary suite opens to a private patio, and upstairs, an additional primary suite with its own terrace complements two more ensuites. Entertain effortlessly in the gourmet kitchen with high-end appliances and butler’s pantry. The lower level transforms into a resort-style retreat with indoor pool, spa, sauna, gym, theater, billiards room, and wine cellar. Outside, expansive decks, a sport court, putting green, and professionally landscaped grounds frame the serene lake backdrop. Experience refined waterfront living in a singular setting.
Save
Ask
Tour
Hide
Listing Snapshot
Price
$8,488,000
Days On Site
4 Days
Bedrooms
7
Inside Area (SqFt)
9,340 sqft
Total Baths
11
Full Baths
4
Partial Baths
7
Lot Size
0.5411 Acres
Year Built
1996
MLS® Number
2420036
Status
Active
Property Tax
$32,247.72
HOA/Condo/Coop Fees
N/A
Sq Ft Source
N/A
Friends & Family
Recent Activity
| 15 hours ago | Listing updated with changes from the MLS® | |
| 3 days ago | Status changed to Active | |
| 4 days ago | Listing first seen on site |
General Features
Acres
0.5411
Attached Garage
Yes
Garage
Yes
Garage Spaces
4
Parking
Attached
Parking Spaces
4
Property Sub Type
Single Family Residence
Security
Security System
SqFt Total
9340
Stories
Two
Utilities
Cable AvailableSewer Connected
Water Source
Public
Zoning
R-15
Interior Features
Appliances
DishwasherDryerMicrowaveRefrigeratorDisposalGas Water HeaterWasherWater Heater
Basement
DaylightFinished
Cooling
Central Air
Fireplace
Yes
Fireplace Features
GasMaster Bedroom
Fireplaces
2
Flooring
Ceramic TileHardwoodCarpet
Heating
ElectricNatural GasForced AirHeat Pump
Interior
Central VacuumWalk-In Closet(s)SaunaVaulted Ceiling(s)Wet Bar
Main Level Bedrooms
1
Spa
Yes
Window Features
Storm Window(s)
Bathroom Full
Level - Main
Bathroom Half
Level - Lower
Bathroom Three Quarter
Bedroom
Bonus Room
Level - Lower
Den
Level - Main
Dining Room
Level - Main
Entry Hall
Level - Main
Extra Fin Room
Level - Lower
Family Room
Level - Main
Kitchen
Living Room
Level - Main
Master Bedroom
Rec Room
Level - Lower
Utility Room
Level - Main
Save
Ask
Tour
Hide
Exterior Features
Construction Details
StoneStucco
Exterior
Garden
Lot Features
Paved
Patio And Porch
Deck
Pool Features
Indoor
Private Pool
Yes
Roof
Tile
Spa
Yes
View
LakeMountain(s)Territorial
Waterview
LakeMountain(s)Territorial
Windows/Doors
Storm Window(s)
Community Features
Accessibility Features
Therapeutic Whirlpool
Building Access
Main
Financing Terms Available
Conventional
MLS Area
510 - Mercer Island
School District
Mercer Island
Schools
School District
Mercer Island
Elementary School
Lakeridge Elem
Middle School
Islander Mid
High School
Mercer Isl High
Courtesy of NWMLS
Listing courtesy of Helena Chen of eXp Realty
Listing information is provided by Participants of the Northwest MLS. IDX information is provided exclusively for 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. Copyright 2025, Northwest MLS.
All data is obtained from various sources and may not have been verified by the 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.
Last checked: 2025-08-22 02:30 AM PDT
Listing courtesy of Helena Chen of eXp Realty
Listing information is provided by Participants of the Northwest MLS. IDX information is provided exclusively for 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. Copyright 2025, Northwest MLS.
All data is obtained from various sources and may not have been verified by the 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.
Last checked: 2025-08-22 02:30 AM PDT
Neighborhood & Commute
Source: Walkscore
Save
Ask
Tour
Hide
Did you know? You can invite friends and family to your search. They can join your search, rate and discuss listings with you.