Sold206d on market
8320 Avalon Drive
Mercer Island, WA, 98040 • 98040 • King County
$6,825,000
$1147/sqft
4Beds
4Baths
5,950Sqft
0.4 acLot
2007Built
Property DNA
Waterfront Property
Direct water access
Lake Views
Lake
Contemporary Style
Built 2007 · 19 years of history
Mercer Island
98040
Outdoor Living
Bath Off Primary · Built-In Vacuum · Double Pane/Storm Window · Dining Room · Fireplace · Fireplace (Primary Bedroom) · French Doors · High Tech Cabling · Jetted Tub · Sauna · Security System · SMART Wired · Sprinkler System · Vaulted Ceiling(s) · Walk-In Closet(s) · Walk-In Pantry · Water Heater · Wine/Beverage Refrigerator
3 Fireplaces
Gas · Wood Burning · Lower Level: 1 · Main Level: 2 · Fireplace
4-Car Garage
Attached Garage
Ceramic Tile Floors
Quality flooring throughout
This home is getting attention
Listed 206 days ago · 75 views
Market activity
Demand and pricing signals for this listing
75 views
People checking out this listing
206 days on market
Established listing
$1,147/sqft
Price per square foot
Selling Soon Prediction
HighThis home ranks in the top 24% of listings most likely to go under contract soon, based on market activity and demand signals.
Likelihood score
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About this home
Single Family · Built 2007
Untamed Beauty. Tom Kundig-designed residence, this masterful retreat embodies organic architecture and quiet luxury. Nestled into the natural landscape, it showcases Kundig’s iconic use of steel, glass, and cement—blurring the boundaries between indoors and out. Set on a private, view-filled property, the home captures breathtaking views of Lake Washington and Mt. Rainier. Interiors feature soaring volumes, warm natural finishes, and seamless indoor-outdoor transitions. Whether preserved in its architectural purity or thoughtfully modernized, this is a rare opportunity to own a piece of Tom Kundig’s extraordinary design.
Standout features identified
Our analysis highlights warm natural finishes, seamless indoor-outdoor transitions, and soaring volumes as key attractions of this home.
Estimated monthly payment
Based on current rates
$42,498/month
Principal & Interest$33,398
Property Tax$6,825
Insurance$2,275
Down payment20% ($1,365,000)
3%50%
Est. 6.19% rate · 30yr fixed · $5,460,000 loan
Full calculator →At a glance
Key facts and listing details
TypeSingle Family Residence
Year Built2007
HeatingFireplace, Radiant, Geothermal, Natural Gas
Parking4 Attached Garage spaces
Lot0.40 Acres
Property
Home typeSingle Family
Sub-typeSingle Family Residence
StyleContemporary
ConditionVery Good
Year built2007
Stories2
Systems
HeatingFireplace, Radiant, Geothermal, Natural Gas
RoofFlat
ConstructionCement/Concrete, Metal/Vinyl, See Remarks, Wood Siding
Water / SewerPublic, Company: City of Mercer Island / Sewer Connected, Company: City of Mercer Island
Parking & Outdoor
ParkingAttached Garage
Garage4 spaces
BasementNone
Fireplaces3
Lot0.40 Acres
Location & Tax
Neighborhood98040
ZoningR8.4
Annual tax$29,663
Parcel0321100285
Bathrooms & Fees
Full baths2
Features & details
13 categories of property features
Interior Features
Interior
Bath Off Primary
Central Vacuum
Dining Room
High Tech Cabling
Sauna
Appliances
Dishwasher(s)
Disposal
Double Oven
Dryer(s)
Microwave(s)
Refrigerator(s)
Stove(s)/Range(s)
Trash Compactor
Washer(s)
Garbage Disposal
Water Heater: Tankless
Water Heater Location: Utility Room
Flooring
Ceramic Tile
Concrete
Heating
Fireplace
Radiant
Geothermal
Natural Gas
Fireplace
Gas
Wood Burning
Lower Level: 1
Main Level: 2
Fireplace
Windows
Double Pane/Storm Window
Exterior Features
Parking
Attached Garage
Construction
Cement/Concrete
Metal/Vinyl
See Remarks
Wood Siding
Patio & Porch
Bath Off Primary
Built-In Vacuum
Double Pane/Storm Window
Dining Room
Fireplace
Fireplace (Primary Bedroom)
French Doors
High Tech Cabling
Jetted Tub
Sauna
Security System
SMART Wired
Sprinkler System
Vaulted Ceiling(s)
Walk-In Closet(s)
Walk-In Pantry
Water Heater
Wine/Beverage Refrigerator
Lot Features
Paved
Cable TV
Deck
Dog Run
Electric Car Charging
Fenced-Fully
Gas Available
High Speed Internet
Patio
Propane
Sprinkler System
Community
Athletic Court
Boat Launch
Clubhouse
Park
Trail(s)
Security
Security System
Views
Lake
Room details
17 rooms detailed
Master Bedroom
Bedroom
Bedroom
Bedroom
MainBathroom Full
Bathroom Full
Listing insights
Market data and value estimates
StatusSold
Days on market206
Est. value$6,900,000
Est. rent$8,287/mo
Tax rate0.82%
Price/sqft$1147
On marketAug 29, 2025
PostedJul 17, 2025
Last sold$6,825,000
MLS statusSold
MLS updatedOct 13, 2025
Tour days6
Views75
How are the schools in Mercer Island?
3 schools rated nearby
Location
Mercer Island, WA, 98040
Price history
9 events
DateEventPrice$/sqftSource
Sep 12, 2025Sold$6,825,000$1,147NWMLS as distributed by MLS GRID
Sep 1, 2025Pending Sale$6,900,000$1,160NWMLS as distributed by MLS GRID
Jul 20, 2025Listed For Sale$6,900,000$1,160Realogics Sothebys International Realty
Sep 3, 2021Sold$5,800,000$975NWMLS as distributed by MLS GRID
Aug 11, 2021Pending Sale$6,250,000$1,050NWMLS as distributed by MLS GRID
Aug 6, 2021Contingent$6,250,000$1,050NWMLS as distributed by MLS GRID
Jul 23, 2021Pending Sale$6,250,000$1,050NWMLS as distributed by MLS GRID
May 17, 2021Listed For Sale$6,250,000$1,050NWMLS as distributed by MLS GRID
Jul 10, 2001Sold$750,000$126NWMLS as distributed by MLS GRID
Sold$6,825,000
Sep 12, 2025•$1,147/sqft•NWMLS as distributed by MLS GRID
Pending Sale$6,900,000
Sep 1, 2025•$1,160/sqft•NWMLS as distributed by MLS GRID
Listed For Sale$6,900,000
Jul 20, 2025•$1,160/sqft•Realogics Sothebys International Realty
Sold$5,800,000
Sep 3, 2021•$975/sqft•NWMLS as distributed by MLS GRID
Pending Sale$6,250,000
Aug 11, 2021•$1,050/sqft•NWMLS as distributed by MLS GRID
Contingent$6,250,000
Aug 6, 2021•$1,050/sqft•NWMLS as distributed by MLS GRID
Pending Sale$6,250,000
Jul 23, 2021•$1,050/sqft•NWMLS as distributed by MLS GRID
Listed For Sale$6,250,000
May 17, 2021•$1,050/sqft•NWMLS as distributed by MLS GRID
Sold$750,000
Jul 10, 2001•$126/sqft•NWMLS as distributed by MLS GRID
Tax history
21 years of records
YearTax paidAssessed value
Apr 7, 2024$29,663$4,530,000
Apr 7, 2023$29,286$4,254,000
Apr 7, 2022$29,181$4,758,000
Apr 7, 2021$26,185$3,556,000
Apr 7, 2020$24,461$3,056,000
Apr 7, 2019$25,552$3,235,000
Apr 7, 2018$23,797$3,167,000
Apr 7, 2017$24,794$2,858,000
Apr 7, 2016$19,392$2,659,000
Apr 7, 2015$19,392$2,408,000
Apr 7, 2014$19,392$2,217,000
Apr 7, 2013$19,392$2,070,000
Apr 7, 2012—$1,909,000
Apr 7, 2011—$1,885,000
Apr 7, 2010—$2,033,000
Apr 7, 2009—$2,033,000
Apr 7, 2007—$521,000
Apr 7, 2006—$757,000
Apr 7, 2005—$690,000
Apr 7, 2001$5,489$574,000
Apr 7, 2000$5,142$487,000
Nearby homes
Neighborhood details
Local context around this listing
Mercer Island, WA • King County
Nearby cities
AuburnBellevueBothellFederal WayKentKirklandRedmondRenton
Nearby zip codes
98040
Similar homes
Based on information submitted to the MLS GRID as of 2026-04-07 13:08:59 PDT. 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. [Click here for more information](/mls-disclaimers/#39)
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