7909 78th AVE SE Mercer Island, WA 98040 New

UPDATED: 09/12/2026 08:04 PM

$6,800,000

6 Beds8.5 Baths9,340 SqFt

Key Details

Property Type Single Family Home

Sub Type Single Family Residence

Listing Status Active

Purchase Type For Sale

Square Footage 9,340 sqft

Price per Sqft $728

Subdivision Mercer Island

MLS Listing ID 2580194

Style 18 - 2 Stories w/Bsmnt

Bedrooms 6

Full Baths 4

Half Baths 3

Year Built 1996

Annual Tax Amount $37,420

Lot Size 0.541 Acres

Property Sub-Type Single Family Residence

Location

State WA

County King

Area 510 - Mercer Island

Rooms

Basement Daylight,Finished

Main Level Bedrooms 1

Interior

Interior Features Second Kitchen,Bath Off Primary,Built-In Vacuum,Dbl Pane/Storm Window,Fireplace,Fireplace (Primary Bedroom),High Tech Cabling,Hot Tub/Spa,Indoor Pool,Jetted Tub,Pantry,Sauna,Security System,Sprinkler System,Vaulted Ceiling(s),Walk-In Closet(s),Water Heater,Wet Bar,Wine Cellar,Wine/Beverage Refrigerator,Wired for Generator

Flooring Ceramic Tile,Hardwood,Travertine,Carpet

Fireplaces Number 2

Fireplaces Type Gas

Fireplace true

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

Exterior

Exterior Feature Stone,Stucco

Pool Indoor

Amenities Available Athletic Court,Cable TV,Deck,Fenced-Partially,Gas Available,High Speed Internet,Hot Tub/Spa,Patio,Sprinkler System

View Y/N Yes

View Lake,Mountains,Territorial

Roof Type Tile

Garage Yes

Building

Lot Description Dead End Street,Paved

Story Two

Sewer Sewer Connected

Water Public

New Construction No

Schools

Elementary Schools Lakeridge Elem

Middle Schools Islander Mid

High Schools Mercer Isl High

School District Mercer Island

Others

Senior Community No

Acceptable Financing Cash,Conventional

Listing Terms Cash,Conventional

Property Description

Exceptional South Mercer Island living with Lake Washington and Mount Rainier views. Set on an expansive 23,000+ square foot lot, this impressive 9,340-square-foot residence offers remarkable scale, privacy and resort-style amenities designed for both everyday living and unforgettable entertaining. Generous gathering spaces flow throughout the home, while walls of windows capture beautiful views. Enjoy year-round recreation with an indoor swimming pool and private sport court—creating your own retreat without leaving home. Multiple indoor and outdoor entertaining areas provide space to host on any scale, from relaxed gatherings to special celebrations. A separate guest apartment above the garage offers exceptional flexibility for guests, au pair, home office or additional living space. Ideally located on the south end of Mercer Island with convenient access to shopping, dining, parks and highly regarded Mercer Island schools. A rare combination of views, space, recreation and convenience in one extraordinary island property.

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Based on information submitted to the MLS GRID as of 09/15/2026 12:04 AM. 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.