7909 78th Ave SE

Mercer Island, WA 98040
  • $7,980,000

    Price
  • 7

    Bed
  • 8.5

    Bath
  • 9,340

    SqFt

About the Listing 4484 - 111242

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.

Listing Highlights

Status Active
Days on Site 88
Property Type Residential
MLS ® 2420036
Year Built 1996
Total Square Footage 9,340
Lot/Acreage 0.54
County King
Neighborhood Mercer Island
School District Mercer Island
Elementary School Lakeridge Elementary
Middle School Islander Middle
High School Mercer Isl High

Interior Details

  • Bedrooms: 7
  • Bathrooms: 4 Full / 4 Three-Quarter / 3 Half
  • Appliances: Dishwasher(s), Disposal, Dryer(s), Microwave(s), Refrigerator(s), Stove(s)/Range(s), Washer(s), Garbage Disposal
  • Air Cond:
  • Heating:
  • Fireplaces: 2, Gas,2 Fireplace
  • Floor: Ceramic Tile,Hardwood,Carpet
  • Above Ground Sq Ft:
  • Below Ground Sq Ft: n/a
  • Basement: Daylight,Finished
  • Other: Second Kitchen,Bath Off Primary,Built-In Vacuum,Double Pane/Storm Window,Dining Room,Fireplace,Fireplace (Primary Bedroom),French Doors,High Tech Cabling,Hot Tub/Spa,Indoor Pool,Jetted Tub,Sauna,Security System,Sprinkler System,Vaulted Ceiling(s),Walk-In Closet(s),Walk-In Pantry,Water Heater,Wet Bar,Wine Cellar,Master on Main
  • Water: City of Mercer Island

Exterior Details

  • Lot Description: Dead End Street,Paved,Built On Lot,Athletic Court,Cable TV,Deck,Gas Available,Hot Tub/Spa
  • Garage Capacity: 4 car
  • Parking Spaces: 4
  • Roof: Tile
  • Others: Stone,Stucco
  • Sewer: City of Mercer Island
  • Parking Features: Attached Garage

Financial Details

  • Tax Amount: $32,248
  • Taxes w/Assessments: N/A
  • Tax/Property ID: 2524049014
  • Tax Year: 2025

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Questions About..

7909 78th Ave SE Mercer Island, WA 98040

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Originating MLS: nwmls

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