$3,600,000
4 bd•3.25 ba•4,404 sq ft
4140 W Mercer, Mercer Island, WA 98040
• Listed Jul 9, 2026
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Listing Broker: Windermere Real Estate/East; Margo E. Mansfield; 206-276-8979; mmansfield@windermere.com
Buyer Broker: COMPASS
About this home
A private arboretum wraps this impeccably maintained home in year round beauty and color. Inviting and supremely livable not to mention phenomenal indoor to outdoor entertaining. Two sets of French doors open to two patios, one for afternoon sun worshiping and another to catch the morning rays or as respite from the hot afternoon sun. Lovely two story entry leads to sunlit rooms all with landscaped views. Main floor living spaces flow gracefully from one room to the next. Generous sized primary suite with soaring ceilings and bath with custom double vanity, furniture grade storage cabinet, sauna, heated flrs, marble, Robern medicine chests. Two conveniently located staircases lead to the 2nd level and all 4 bedrooms, 3 baths, laundry room and expansive bonus rm with enormous storage closet. Abundant built-in display cabinets/shelves throughout to display art, dishes and other treasures. Two offices plus large kitchen desk. Organized mud room and Costco size storage lead into the home from the immense 3 car garage. Large fully fenced area with garden shed could be home to a dog or...? Raised bed garden for herbs, veggies, flowers. Rose garden. Upstairs and downstairs furnaces and A/C provide ultimate comfort. Wired for sound. The close proximity of Homestead Park and West Mercer Elementary (WA's #1 elementary school) expands your recreation options. This enchanting property, oh so convenient to Mercer Island's city center, freeways, and light rail is truly a secret sanctuary.
Listed by Margo E. Mansfield • Windermere Real Estate/East
Listing updated: September 17, 2026 at 04:05am
RexMont checked: moments ago
Source: NWMLS as Distributed by MLS Grid #2551922
Around this home
Property details
Interior features
- Bath Off Primary
- Built-In Vacuum
- Dbl Pane/Storm Window
- Dining Room
- Fireplace
- French Doors
- High Tech Cabling
- Sauna
- Security System
- Skylight(s)
- Vaulted Ceiling(s)
- Walk-In Closet(s)
- Wine/Beverage Refrigerator
- 2 fireplaces (gas, wood burning)
Kitchen
- Dishwasher
- Disposal
- Double Oven
- Dryer
- Microwave
- Refrigerator
- Stove(s)/Range(s)
- Washer
Bedrooms
- 4 bedrooms total
- 4 upstairs
Bathrooms
- 2 full bathrooms
- 1 three-quarter bathroom (shower, no tub)
- 1 half bathroom
- 3.25 bathrooms total (NWMLS count)
- 1 on the main level
Layout
- 2 Story
- 4,404 sq ft finished
- 845 sq ft garage
Flooring
- Ceramic Tile
- Hardwood
- Marble
- Travertine
- Carpet
Heating & cooling
- Forced Air heating
- High Efficiency (Unspecified) heating
- Recirculation Pump heating
- Central Air cooling
- Forced Air 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
- Vegetation
- Garden Space
- Faces
- West
Systems
- Energy source
- Electric,Natural Gas
- Power production
- Electric, Natural Gas
- Power company
- PSE
- Water company
- City of Mercer Island
- Sewer company
- City of Mercer Island
- Gas company
- PSE
- Garbage service
- Recology
- Irrigation water rights
- No
- Internet connected
- Xfinity
Rooms & extras
- Bathtubs
- 2
- Showers
- 3
- Fireplaces on main
- 2
New construction
- Square footage source
- appraisal
- Lot size source
- King Cty Records
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 4140 W Mercer
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.
- Aug 17, 2026SoldNWMLS via MLS Grid · #2551922$3,600,000$817/sq ft
- Jul 15, 2026PendingNWMLS via MLS Grid · #2551922$3,600,000$817/sq ft
- Jul 9, 2026ListedNWMLS via MLS Grid · #2551922$3,600,000$817/sq ft
- Aug 26, 2003SoldNWMLS via MLS Grid · #23099218$1,202,000$273/sq ft
- Aug 22, 2003PendingNWMLS via MLS Grid · #23099218$1,200,000$272/sq ft
- Jul 17, 2003ListedNWMLS via MLS Grid · #23099218$1,200,000$272/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 60 days.
Recent sales nearby
Within 1 mile · last 6 months$1,585,000 Sold
3 days 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
0.3 mi
Distance
$3,425,000 Sold
3 days 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
0.4 mi
Distance
$2,300,000 Sold
1 week ago
3 bd•1.75 ba•~1,900 sq ft•Single Family
7529 SE 40th Street, Mercer Island, WA 98040
21%
Over list
15
Days on market
0.3 mi
Distance
$2,825,000 Sold
2 weeks ago
4 bd•3.25 ba•~3,728 sq ft•Single Family
4520 89th Avenue SE, Mercer Island, WA 98040
2%
Under list
40
Days on market
0.8 mi
Distance
$1,450,000 Sold
2 weeks ago
3 bd•2.5 ba•~2,080 sq ft•Single Family
4329 86th Avenue SE, Mercer Island, WA 98040
5%
Under list
82
Days on market
0.4 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 Oct 2026
MLS GRID Disclaimer
Based on information submitted to the MLS GRID as of September 17, 2026 at 04:05am (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.
© 2026 Northwest Multiple Listing Service. All rights reserved.
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