7909 78th AVE SE Mercer Island, WA 98040 Open Sun 12PM-2PM

UPDATED: 01/30/2026 04:03 AM

$7,800,000

7 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 $835

Subdivision Mercer Island

MLS Listing ID 2420036

Style 18 - 2 Stories w/Bsmnt

Bedrooms 7

Full Baths 4

Half Baths 3

Year Built 1996

Annual Tax Amount $32,247

Lot Size 0.541 Acres

Property Sub-Type Single Family Residence

Property Description

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.