$1,468,000
Listed at $1,385,0003 bd•1.5 ba•1,158 sq ft
3772 78th Avenue SE, Mercer Island, WA 98040
• Listed May 28, 2026
RexMont Market Signal for 3772 78th Avenue SE
Sold price on recordRexMont Market Signal $1,468,000
Closed sale price · as of June 9, 2026, the day it sold.
Market Signal since the sale
$1,376,228
Likely $1,016,018 – $2,067,852 · wide read: talk to Adriano · as of November 1, 2026
Estimate, not an appraisal.
Information and statistics derived from Northwest Multiple Listing Service. Source: Northwest Multiple Listing Service, as distributed by MLS GRID; King County Assessor records.
Your home value, prepared by the designated broker
Prepared by Adriano ToriFounder & Designated Broker · WA Lic. #27660Own a home near 3772 78th Avenue SE? This sale moved its value.
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Watching: Mercer Island $1.18M–$1.76M · 3+ bd
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Listing Broker: Coldwell Banker Bain; Katie Penny Shea; 206-232-4600
Buyer Broker: Windermere Mercer Island
About this home
Effortlessly cool with classic mid-century charm, this 3BR/1.5BA north-end rambler is designed for easy everyday living. The welcoming layout features a light-filled living and dining area, plus a cozy kitchen opening to a sunny patio and expansive fully fenced backyard with lush lawn, all set on a generous 8,793 sq ft lot—perfect for entertaining, gardening, pets, or play. An additional family room with fireplace offers flexible space for relaxing, movie nights, or a home office. A covered area between the home and spacious 2-car carport creates the perfect spot for hobbies, gardening supplies, storage, or a workbench. Thoughtfully positioned off 78th Ave, the home feels tucked away while remaining incredibly connected. Located across from Homestead Park and West Mercer Elementary, and just a few blocks from the heart of downtown Mercer Island—grab coffee, stroll Mercerdale Park, visit the summer farmers market, or hop on the new light rail. Comfort, convenience, and an easy Mercer Island lifestyle come together in this charming home.
Listed by Katie Penny Shea • Coldwell Banker Bain
Listing updated: July 10, 2026 at 04:04am
RexMont checked: moments ago
Source: NWMLS as Distributed by MLS Grid #2525415
Around this home
Property details
Interior features
- Bath Off Primary
- Dbl Pane/Storm Window
- Fireplace
- Water Heater
- Fireplace (wood burning)
Kitchen
- Dishwasher
- Disposal
- Dryer
- Microwave
- Refrigerator
- Stove(s)/Range(s)
- Washer
Bedrooms
- 3 bedrooms total
- 3 on the main level
Bathrooms
- 1 full bathroom
- 1 half bathroom
- 1.5 bathrooms total (NWMLS count)
- 2 on the main level
Layout
- 1 Story
- 1,158 sq ft finished
Flooring
- Hardwood
- Vinyl
- Carpet
Heating & cooling
- Forced Air heating
- None cooling
Schools
Ratings via SchoolDiggerMercer Island School District
- West Mercer ElementaryPublic · Grades K-5—
- Islander Middle SchoolPublic · Grades 6-8 · State rank 9 of 51410/10
- Mercer Island High SchoolPublic · Grades 9-12 · State rank 2 of 39610/10
Assigned schools for this property per the listing's MLS data. School district boundaries change — verify the exact assigned schools with the district before purchasing.
Single-family home facts
As entered by the listing broker on Northwest MLS
Lot & site
- Topography
- Level,Partial Slope
- Lot number
- 18
Systems
- Energy source
- Natural Gas
- Power production
- Natural Gas
- Water heater
- Gas
- Water heater location
- Hallway Closet
- Power company
- Puget Sound Energy
- Water company
- City of Mercer Island
- Sewer company
- City of Mercer Island
- Gas company
- Puget Sound Energy
- Garbage service
- Recology
- Irrigation water rights
- No
- Internet connected
- Comcast/Xfinity
- Cable connected
- Comcast
Rooms & extras
- Bathtubs
- 1
- Showers
- 1
- Fireplaces on main
- 1
New construction
- Square footage source
- Appraiser
- Lot size source
- Realist
Manufactured home
- Land lease
- No
Neighborhood mobility
Doorstep, Pedal & Station Scores
Three RexMont scores for this exact address: what is on foot, what is by bike, and what rides past the door.
Ground Truth™
The ground, the slope, the flood zone and the noise at this address
Read from public hazard, flood, terrain and noise maps for this exact home.
Address Insider™
The members' report
Commute, transit, zoning and ADU potential, internet providers and the lifestyle around the home: the nearest grocery, coffee, park, services and transit stop. One free registration opens every home on rexmont.com.
Opens with the report above.
Sales & Tax Records for 3772 78th Avenue SE
NWMLS via MLS Grid · King County AssessorEvery listing, pending, price change and closing filed on this home with the NWMLS, the county’s recorded sales, and its assessed values by tax year.
- Jun 9, 2026SoldNWMLS via MLS Grid · #2525415$1,468,000$1,268/sq ft
- May 29, 2026PendingNWMLS via MLS Grid · #2525415$1,385,000$1,196/sq ft
- May 28, 2026ListedNWMLS via MLS Grid · #2525415$1,385,000$1,196/sq ft
- Aug 18, 2000SoldNWMLS via MLS Grid · #20088292$342,000$295/sq ft
- Aug 10, 2000PendingNWMLS via MLS Grid · #20088292$339,950$294/sq ft
- Jul 17, 2000ListedNWMLS via MLS Grid · #20088292$339,950$294/sq ft
Market pulse
Mercer Island is a balanced market.
Supply and demand are roughly in balance. Neither side has a clear edge.
Offer insight: Homes typically sell with one offer near asking price.
List to sale price: The average home sells for about 2% below list price.
Time on market: The average home goes pending in around 76 days.
Recent sales nearby
Within 1 mile · last 6 months$3,360,000 Sold
1 week ago
4 bd•4.5 ba•~4,114 sq ft•Single Family
4429 Forest Avenue SE, Mercer Island, WA 98040
34%
Over list
18
Days on market
0.6 mi
Distance
$1,510,000 Sold
2 weeks ago
3 bd•1.75 ba•~2,153 sq ft•Single Family
8218 SE 36th Street, Mercer Island, WA 98040
5%
Under list
37
Days on market
0.4 mi
Distance
$3,915,000 Sold
3 weeks ago
5 bd•3.25 ba•~4,130 sq ft•Single Family
3045 71st Avenue SE, Mercer Island, WA 98040
12%
Over list
35
Days on market
0.7 mi
Distance
$1,585,000 Sold
4 weeks ago
4 bd•3 ba•~2,220 sq ft•Single Family
4215 Island Crest Way, Mercer Island, WA 98040
6%
Under list
65
Days on market
0.5 mi
Distance
$3,425,000 Sold
4 weeks ago
7 bd•3.25 ba•~4,640 sq ft•Single Family
8105 SE 44th Street, Mercer Island, WA 98040
2%
Under list
24
Days on market
0.6 mi
Distance
Closed sales from MLS GRID / NWMLS within the past 6 months, matched on property type and within 1 mile. Comps approximate.
Want a deeper read on this market?
Ask a RexMont agentMarket data from MLS GRID / NWMLS · Updated Nov 2026
Information and statistics derived from Northwest Multiple Listing Service. Source: Northwest Multiple Listing Service, as distributed by MLS GRID.
MLS GRID Disclaimer
Based on information submitted to the MLS GRID as of November 6, 2026 at 6:04 PM PT (date and time MLS GRID Data was obtained). 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.
Listing information courtesy of Northwest Multiple Listing Service (NWMLS). The listing data relating to real estate for sale on this web site comes in part from the Northwest Multiple Listing Service. Real estate listings held by brokerage firms other than RexMont Real Estate are marked with the “Listing courtesy of NWMLS” designation. Information provided is for the consumer’s personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing.
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