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6 Beds
7 Baths
9,340 sqft

$6,800,000

7909 78th Ave SE , Mercer Island WA, 98040

Price per sqft$728.05
Built in1996
Property size9,340 sqft
Property typeResidential

Overview

Active

Listed Sep 29, 2026

Updated 35h ago

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.

$45,241/mo

Est. mortgage payment based on a $6,800,000 home price.

All estimates are provided by Luxury Presence for informational purposes only. Actual amounts may vary.

Additional information

MLS® ID
2580194
Available since
September 29, 2026

Interior Features

Bedrooms
6
Bathrooms
7
Fireplace
Yes
Cooling
Yes
Heating
Yes
Basement
Yes

Exterior Features

Lot Size
0.54 Acres

Other Property Details

Taxes
$37,420
Tax Frequency
Annually

 Courtesy of Robert Pong | Realogics Sotheby's International Realty

Based on information from DASH - Sotheby's International Realty (SIR) as of 10/10/2026. This information is for your personal, non-commercial use and may not be used for any purpose other than to identify prospective properties you may be interested in purchasing. The display of MLS data is usually deemed reliable but is NOT guaranteed accurate by the MLS. Buyers are responsible for verifying the accuracy of all information should investigate the data themselves or retain appropriate professionals. Information from sources other than the Listing Agent may have been included in the MLS data. Unless otherwise specified in writing, Broker/Agent has not and will not verify any information obtained from other sources. The Broker/Agent providing the information contained herein may or may not have been the Listing and/or Selling Agent. 

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Data last updated 7:19 AM UTC, 10/10/2026

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