Sold249d on market
9930 SE 40th Street
Mercer Island, WA, 98040 • 98040 • King County
$1,625,000
$770/sqft
4Beds
3Baths
2,110Sqft
0.27 acLot
1979Built
Property DNA
Mercerwood
98040
Outdoor Living
Bath Off Primary · Ceiling Fan(s) · Double Pane/Storm Window · Dining Room · Fireplace · Skylight(s) · Walk-In Closet(s)
1 Fireplace
Wood Burning · Main Level: 1 · Fireplace
2-Car Garage
Attached Garage · Off Street
This home is in high demand
Listed 249 days ago · 8 views · Top 3% likely to sell soon
Market activity
Demand and pricing signals for this listing
8 views
People checking out this listing
249 days on market
Established listing
$770/sqft
Price per square foot
Selling Soon Prediction
Very HighThis home ranks in the top 3% of listings most likely to go under contract soon, based on market activity and demand signals.
Likelihood score
Want the full market analysis?
Get the detailed selling prediction score, comparable sales data, and price trend forecast for this property.
Free · Delivered to your inbox in minutes
About this home
Single Family · Built 1979
Beautifully updated 4-bedroom, 2.25-bath two-story home on a quiet cul-de-sac in a sought-after North-end Mercer Island neighborhood! This spacious residence sits on a generous lot with park-like front and back yards, offering natural beauty, privacy, and serenity. The fully fenced backyard is ideal for entertaining, gardening, play, or peaceful relaxation. Recent upgrades include a new 50-year roof, new flooring, new furnace, new garage door openers, and fresh interior paint throughout. Thoughtfully designed for comfort and functionality. Just minutes from top-rated Mercer Island schools, Mercerwood Shore Club, JCC, French American school, downtown MI, parks, shopping, dining, and easy I-90 access. A rare opportunity in a prime location.
Estimated monthly payment
Based on current rates
$10,119/month
Principal & Interest$7,952
Property Tax$1,625
Insurance$542
Down payment20% ($325,000)
3%50%
Est. 6.19% rate · 30yr fixed · $1,300,000 loan
Full calculator →At a glance
Key facts and listing details
TypeSingle Family Residence
Year Built1979
HeatingFireplace, Forced Air, Electric, Natural Gas
CoolingNone
Parking2 Attached Garage spaces
Lot0.27 Acres
Offer Review Date2025-07-02
Property
Home typeSingle Family
Sub-typeSingle Family Residence
ConditionGood
Year built1979
Stories2
Systems
HeatingFireplace, Forced Air, Electric, Natural Gas
CoolingNone
RoofComposition
ConstructionWood Products
Water / SewerPublic / Sewer Connected
Parking & Outdoor
ParkingAttached Garage, Off Street
Garage2 spaces
BasementNone
Fireplaces1
Lot0.27 Acres
Location & Tax
Neighborhood98040
ZoningR9.6
Annual tax$9,482
Parcel0724059122
Bathrooms & Fees
Full baths1
Features & details
11 categories of property features
Interior Features
Interior
Bath Off Primary
Ceiling Fan(s)
Dining Room
Appliances
Dishwasher(s)
Disposal
Dryer(s)
Microwave(s)
Refrigerator(s)
Stove(s)/Range(s)
Washer(s)
Garbage Disposal
Flooring
Vinyl Plank
Heating
Fireplace
Forced Air
Electric
Natural Gas
Cooling
None
Fireplace
Wood Burning
Main Level: 1
Fireplace
Windows
Double Pane/Storm Window
Skylight(s)
Exterior Features
Parking
Attached Garage
Off Street
Construction
Wood Products
Patio & Porch
Bath Off Primary
Ceiling Fan(s)
Double Pane/Storm Window
Dining Room
Fireplace
Skylight(s)
Walk-In Closet(s)
Lot Features
Cul-De-Sac
Dead End Street
Paved
Value In Land
Deck
Fenced-Fully
High Speed Internet
Patio
Room details
14 rooms detailed
Bedroom
Bedroom
Bedroom
Bedroom
Bathroom Full
Bathroom Three Quarter
Listing insights
Market data and value estimates
StatusSold
Days on market249
Est. value$1,638,600
Est. rent$5,048/mo
Tax rate0.82%
Price/sqft$770
On marketAug 26, 2025
PostedJun 27, 2025
Last sold$1,625,000
MLS statusSold
MLS updatedAug 31, 2025
Tour days6
Views8
How are the schools in Mercer Island?
3 schools rated nearby
Location
Mercer Island, WA, 98040
Price history
6 events
DateEventPrice$/sqftSource
Aug 24, 2025Listing Removed$6,100$3Zillow Rentals
Aug 1, 2025Listed For Rent$6,100$3Zillow Rentals
Jul 31, 2025Sold$1,625,000$770NWMLS as distributed by MLS GRID
Jul 3, 2025Pending Sale$1,600,000$758NWMLS as distributed by MLS GRID
Jun 27, 2025Listed For Sale$1,600,000$758NWMLS as distributed by MLS GRID
Mar 27, 1998Sold$316,000$150Public Record
Listing Removed$6,100
Aug 24, 2025•$3/sqft•Zillow Rentals
Listed For Rent$6,100
Aug 1, 2025•$3/sqft•Zillow Rentals
Sold$1,625,000
Jul 31, 2025•$770/sqft•NWMLS as distributed by MLS GRID
Pending Sale$1,600,000
Jul 3, 2025•$758/sqft•NWMLS as distributed by MLS GRID
Listed For Sale$1,600,000
Jun 27, 2025•$758/sqft•NWMLS as distributed by MLS GRID
Sold$316,000
Mar 27, 1998•$150/sqft•Public Record
Tax history
21 years of records
YearTax paidAssessed value
Apr 7, 2024$9,482$1,446,000
Apr 7, 2023$9,541$1,384,000
Apr 7, 2022$9,507$1,548,000
Apr 7, 2021$8,532$1,157,000
Apr 7, 2020$8,384$1,046,000
Apr 7, 2019$8,455$1,069,000
Apr 7, 2018$7,667$1,019,000
Apr 7, 2017$7,990$920,000
Apr 7, 2016$6,053$828,000
Apr 7, 2015$6,053$750,000
Apr 7, 2014$6,053$691,000
Apr 7, 2013$6,053$579,000
Apr 7, 2012—$534,000
Apr 7, 2011—$528,000
Apr 7, 2010—$570,000
Apr 7, 2009—$570,000
Apr 7, 2007—$529,000
Apr 7, 2006—$491,000
Apr 7, 2005—$447,000
Apr 7, 2001$3,598$376,000
Apr 7, 2000$3,602$341,000
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 10:03:45 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)
No obligation · Same-day response