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7909 78th Avenue Se, 
Mercer Island, WA 98040

$8,488,000


7

Beds


11

Baths


9,340

Sq Ft


Single Family

Active

Listed by

Helena Chen

eXp Realty

Last updated:

August 21, 2025, 06:52 PM

MLS#

2420036

Source:

NWMLS

About This Home

7909 78th Avenue Se

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.

Home Facts

Single Family

11 Baths

7 Bedrooms

Built in 1996

Price Summary

8,488,000

$908 per Sq. Ft.

MLS #:

2420036

Last Updated:

August 21, 2025, 06:52 PM


Rooms & Interior

Bedrooms

Total Bedrooms:

7

Bathrooms

Total Bathrooms:

11

Full Bathrooms:

4

Interior

Living Area:

9,340 Sq. Ft.


Structure

Structure

Building Area:

9,340 Sq. Ft.

Year Built:

1996


Lot

Lot Size (Sq. Ft):

23,571


Finances & Disclosures

Finances

Price:

$8,488,000

Price per Sq. Ft:

$908 per Sq. Ft.

MLS Logo
Listings courtesy of Northwest MLS as distributed by MLS GRID. Based on information submitted to the MLS GRID as of August 22, 2025. 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. Listing information is provided for consumers' personal, non-commercial use, solely to identify prospective properties for potential purchase; all other use is strictly prohibited and may violate relevant federal and state law. Information deemed reliable but not guaranteed. Copyright © 2025 MLS GRID. All Rights Reserved.
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7909 78th Avenue Se
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