Address
7909 78th Avenue Se, Mercer Island, WA
Price
$ 6,800,000
Property Attributes
- ID#2580194
- TypeSingle Family
- CountyKING
- CityMercer Island
- AreaMercer Island
- NeighborhoodMercer Island
- Zip98040
- Style2 Stories w/Bsmnt
- Year Built1996
- Taxes$ 37420
- Price$ 6,800,000
- Bedrooms6
- Full Bathrooms8
- Half Bathrooms3
- Sqr Footage9340
- Lot Size0.5411 Acres
Data Source:
Northwest Multiple Listing Service (NWMLS)
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.
| Elementary School | Middle School | High School |
|---|---|---|
| Lakeridge Elem | Islander Mid | Mercer Isl High |
| Price History | |
|---|---|
| 9/11/2026 | Listed $6,800,000 |
General Features
| Living Area | 9340 |
|---|---|
| Sewer | Sewer Connected |
| Heating | 90%+ High Efficiency,Forced Air,Heat Pump |
| Cooling | 90%+ High Efficiency,Central Air |
| Possession | Closing,Negotiable |
| Roof | Tile |
| Appliances | Dishwasher,Disposal,Dryer,Microwave,Refrigerator,Stove(s)/Range(s),Washer |
| Pool Features | Indoor |
| Security Features | Partially Fenced,Security System |
| Year Built | 1996 |
| View | Lake,Mountains,Territorial |
| Topography | Partial Slope,Terraces |
| Levels | Two |
| Property Subtype | Single Family Residence |
| Tax Year | 2026 |
| County | King |
| New Construction | No |
| Property Type | Residential |
| HOA | No |
| Attached Garage | Yes |
| Subdivision Name | Mercer Island |
| Garage Y/N | Yes |
| Full Baths | 4 |
| Special Listing Conditions | None |
| Status | Active |
| Directions | Please call with any questions. |
| High School | Mercer Isl High |
| City | Mercer Island |
| Entry Location | Main |
| Senior Community Y/N | No |
| High School District | Mercer Island |
| MLS Area | 510 - Mercer Island |
| Lot Size Units | Square Feet |
| Lot Size Square Feet | 23571 |
| Carport Y/N | No |
| Listing Terms | Cash,Conventional |
| Elementary School | Lakeridge Elem |
| Land Lease Y/N | No |
| Tax Annual Amount | 37420.23 |
| Middle/Junior High School | Islander Mid |
| Public Remarks | 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,pr |
| Structure Type | House |
| Building Area Units | Square Feet |
| Standard Status | Active |
| Water Company | City of Mercer Island |
| Property Style | 18 - 2 Stories w/Bsmnt |
| NWM_ShowMapLink | Yes |
Interior Features
| Interior Amenities | 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 |
|---|---|
| Basement | Daylight,Finished |
| Flooring | Ceramic Tile,Hardwood,Travertine,Carpet |
| Total Fireplaces | 2 |
| Fireplace Features | Gas |
| Air Conditioning Y/N | Yes |
| Heating Y/N | Yes |
| Fireplace Y/N | Yes |
| Half Baths | 3 |
| 3/4 Baths | 4 |
| Total Bedrooms | 6 |
| Main Level Bedrooms | 1 |
| Total Baths | 11 |
| Water Heater Type | Gas |
| Water Heater Location | Basement |
| Fireplaces Upper | 1 |
| Fireplaces Main | 1 |
| Power Production Type | Electric,Natural Gas |
| Baths Three Quarter Lower | 1 |
| Baths Three Quarter Upper | 3 |
| Bedrooms Lower | 1 |
| Bedrooms Upper | 4 |
| Baths Half Main | 2 |
| Baths Half Lower | 1 |
| Baths Full Upper | 2 |
| Baths Full Main | 1 |
| Baths Full Lower | 1 |
| Bathrooms | 8.5 |
Exterior Features
| Exterior Amenities | Stone,Stucco |
|---|---|
| Vegetation | Fruit Trees,Garden Space |
| Parking Features | Attached Garage |
| Lot Features | Dead End Street,Paved |
| Water Source | Public |
| Total Parking | 4 |
| Inclusions | Dishwasher(s),Dryer(s),Garbage Disposal,Microwave(s),Refrigerator(s),Stove(s)/Range(s),Washer(s) |
| Foundation Details | Poured Concrete |
| Spa | Yes |
| Building Area Total | 9340 |
| Lot Size Acres | 0.5411 |
| Waterfront Y/N | No |
| Covered Spaces | 4 |
| Irrigation Water Rights Y/N | No |
| Site Features | Athletic Court,Cable TV,Deck,Fenced-Partially,Gas Available,High Speed Internet,Hot Tub/Spa,Patio,Sprinkler System |
| Pool Type | Indoor |
| Lot Number | 3 |
Amenities
- Foreclosure
- Views
- Short Sale
- New Construction
- Adult 55+
- Lease To Own
- No HOA Fees
- Furnished
- Primary On Main
- Air Conditioning
- Seller Finance
- Green
- Fixer Upper
- Horse
- Golf
- Fireplace
- Deck
- Garage
- Basement
- Pool
Property vs Single Family Average in 98040
Price
Taxes
Year Built
Visits
In The Neighborhood
Mercer Island
$ 4,098,000
- Type
- Single Family | Active
- Size
- 4,120 SqFt
- Rooms
- 4 Beds + 4 Baths
Listed by: Real Residential
Mercer Island
$ 2,200,000
- Type
- Single Family | Active
- Size
- 3,200 SqFt
- Rooms
- 4 Beds + 2.5 Baths
Listed by: Windermere Real Estate/East
Mercer Island
$ 4,250,000
- Type
- Single Family | Active
- Size
- 4,310 SqFt
- Rooms
- 4 Beds + 3.5 Baths
Listed by: COMPASS
Open House
Mercer Island
$ 5,586,000
- Type
- Single Family | Active
- Size
- 6,140 SqFt
- Rooms
- 5 Beds + 5.5 Baths
Listed by: Windermere Bellevue Commons
Mercer Island
$ 1,799,500
- Type
- Single Family | Active
- Size
- 2,495 SqFt
- Rooms
- 4 Beds + 2.5 Baths
Listed by: WeLakeside
Mercer Island
$ 3,350,000
- Type
- Single Family | Active
- Size
- 4,870 SqFt
- Rooms
- 6 Beds + 4 Baths
Listed by: COMPASS
Mercer Island
$ 1,750,000
- Type
- Single Family | Active
- Size
- 2,560 SqFt
- Rooms
- 4 Beds + 3 Baths
Listed by: Windermere Mercer Island
Mercer Island
$ 4,299,995
- Type
- Single Family | Active
- Size
- 4,474 SqFt
- Rooms
- 5 Beds + 4.5 Baths
Listed by: COMPASS
Tri-City Association of REALTORS® All information deemed reliable but not guaranteed. All properties are subject to prior sale, change or withdrawal. Neither listing broker(s) or information provider(s) shall be responsible for any typographical errors, misinformation, misprints and shall be held totally harmless. Listing(s) information is provided for consumer's personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested
Information should be deemed reliable but not guaranteed, all representations are approximate, and individual verification is recommended. Copyright ©2018 All rights reserved. Last Update: September 23, 2026 4:35 AM UTC
