USAWAMercer IslandMercer Island7909 78Th Ave Se
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7909 78th Ave Se, Mercer Island, WA

House

For Sale

Listed price in listed location currency (USD).
$7,800,000

7114

MLS® 2420036

  • Key Facts
  • Description
  • Rooms
  • Map

Key Facts

Type Single Family Residence
Levels Residential
Size 9340 sqft
Garage Yes
Taxes $32,248
Days Active 108
Lot Size 0.5411 acres
Approx. Age 1996
Avg. Price Per Sqft $835
MLS® Number 2420036

Property Address: 7909 78th Ave Se, Mercer Island, WA, 98040-5566

Average square foot calculated using Size range provided by listing agent.

Description

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.
MLS® Number2420036
Laundry Level
Central VacNo
FireplaceNo
Acreage0.5411
Exterior
GarageYes
Approx. Age1996
BasementDaylight, Finished
DrivewayAttached Garage
Garage Spaces4
Heat
A/C
Heating Fuel

Extras

Dishwasher(s), Dryer(s), Garbage Disposal, Microwave(s), Refrigerator(s), Stove(s)/Range(s), Washer(s)

Rooms

Change to metres

Living Room:Main FloorNot available
Other:Main FloorNot available
Other:Main FloorNot available
Utility Room:Main FloorNot available
Other:Main FloorNot available
Other:Lower LevelNot available
Other:Main FloorNot available
Bonus Room:Lower LevelNot available
Dining Room:Main FloorNot available
Other:Main FloorNot available
Family Room:Main FloorNot available
Other:Lower LevelNot available
Other:Lower LevelNot available
Other:Main FloorNot available

Similar Listings

Price History

-End Date
Not Sold YetSold Price

For Sale

Aug 19, 2025List Date
$7,800,000List Price
-End Date
Not Sold YetSold Price

For Rent

Nov 18, 2025List Date
$25,000List Price
  • Commute

Commute

Starting Address
Destination Address
7909 78 Th Ave Se, Mercer Island, WA

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