7909 78th Avenue Se, Mercer Island, Washington 98040

WA, Mercer Island
$7,580,000
  • 7 Beds
  • 11 Bath
  • 9,340 Sqft
  • Residential Property Type
  • 1996 Year Built
  • Active Status
Property 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 three 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 luxury living in a singular setting.

Source: NWMLS
Basic Details
  • Property Type: Residential
  • Listing Type: For Sale
  • Listing ID: 2420036
  • Price: $7,580,000
  • View: Lake,Mountains,Territorial
  • Bedrooms: 7
  • Bathrooms: 11
  • Square Footage: 9,340 Sqft
  • Year Built: 1996
  • Lot Area: 0.54 Acre
  • Status: Active
  • Office Name: eXp Realty
  • Agent Name: Helena Chen
  • Full Bathrooms: 4
  • Property Sub Type: Single Family Residence
  • Roof: Tile
Features
  • Swimming Pool Indoor
  • Heating System Heat Pump, Forced Air, 90%+ High Efficiency
  • Cooling System 90%+ High Efficiency, Central Air
  • Basement Finished, Daylight
  • Fireplace Gas
  • Parking Attached Garage
  • Exterior Features Stone, Stucco
  • Fireplaces Total: 2
  • Flooring Ceramic Tile, Hardwood, Carpet
  • Interior Features Bath Off Primary, Fireplace, Fireplace (Primary Bedroom), French Doors, High Tech Cabling, Hot Tub/Spa, Jetted Tub, Sauna, Security System, Vaulted Ceiling(s), Walk-In Closet(s), Wet Bar, Wine Cellar, Second Kitchen, Dining Room, Water Heater, Sprinkler System, Built-In Vacuum, Pantry, Indoor Pool, Dbl Pane/Storm Window
  • Sewer Sewer Connected
Appliances
  • Disposal
  • Stove(s)/Range(s)
  • Dishwasher
  • Refrigerator
  • Microwave
  • Dryer
  • Washer
Address Map
  • Country US
  • State WA
  • County King
  • City Mercer Island
  • Zipcode 98040
  • Street: 78th
  • Street Number: 7909
  • Street Suffix: Avenue
  • Longitude: W123° 45' 52.8''
  • Latitude: N47° 31' 53.4''
  • Directions: GPS is accurate
  • Mls Area Major: 510 - Mercer Island
  • Street Dir Suffix: SE
  • Zoning: R-15
Neighborhood
  • Elementary School: Lakeridge Elem
  • High School: Mercer Isl High
  • High School District: Mercer Island
  • Middle School: Islander Mid
Additional Information
  • Water Source: Public
  • Virtual Tour: Virtual Tour
  • On Market Date: 2025-08-18
  • Lot Features: Dead End Street, Paved
  • Levels: Two
  • Foundation Details: Poured Concrete
  • Construction Materials: Stone, Stucco
  • Attached Garage Yn: 1
Financial
  • Tax Annual Amount: 32247.72
Listing Information
  • List Agent Mls Id: 111242
  • List Office Mls Id: 4484
  • Listing Term: Cash,Conventional
  • Mls Status: Active
  • Modification Timestamp: 2026-03-27T23:16:10Z
  • Originating System Name: NWMLS
  • Special Listing Conditions: None
  • Status Change Timestamp: 2025-08-19T00:32:03Z
Rene  Orona
Rene Orona SKYLINE PROPERTIES, INC.
  • +1-425-891-8162
  • rene@brokerofrealestate.com
  • 50 116TH AVE SE STE 120 Bellevue, WA 98004, United States
  • +1-425-732-9211

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