7909 78th Avenue SE

Mercer Island, WA 98040

  • 7 Bed

  • 11 Bath

  • 9340 SqFt

  • 366 DOM

  • Built: 1996

  • Status: Active

$7,580,000

X

7909 78th Avenue SE

Mercer Island 98040

$7580000

  • 7 Bed

  • 11 Bath

  • 9340 SqFt

  • 366 DOM

  • Built: 1996

  • Status: Active

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Srinivas Kasam

CEO & Founder

(650)533-3259

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.

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Residence Information

  • 9340

  • 2/Gas

  • 7

  • 4

  • 3

  • 11

  • Tile

  • 18 - 2 Stories w/Bsmnt

  • 1996

  • Daylight, Finished

  • Daylight, Finished

  • Poured Concrete

Features and Utilities

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

  • Second Kitchen, Bath Off Primary, Built-In Vacuum, Dbl Pane/Storm Window, Dining Room, Fireplace, Fi

  • Stone, Stucco

  • Public

  • Sewer Connected

Financial

  • 32247.72

  • Cash, Conventional

  • 08-18-2025

Comparable Information

  • 366

  • 366

  • Cash, Conventional

  • $8,488,000

  • $8,488,000

  • Mar 03, 2026 23:25

Schools

Elementary : Lakeridge Elem N/A Ratings
Middle : Islander Mid N/A Ratings
High : Mercer Isl High N/A Ratings

Map

Listing courtesy of eXp Realty.

The content relating to real estate for sale on this site comes in part from the IDX program of the NWMLS of Seattle, Washington. Real Estate listings held by brokerage firms other than this firm are marked with the NWMLS logo, and detailed information about these properties include the name of the listing's broker. Listing content is copyright © 2026 NWMLS of Seattle, Washington. All information provided is deemed reliable but is not guaranteed and should be independently verified. Kasamestates data last checked: Mar 10, 2026 14:31 | Listing last modified Mar 03, 2026 23:25. Some properties which appear for sale on this web site may subsequently have sold or may no longer be available.

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