$8,000,000
Listed at $9,398,0006 bd•6.5 ba•9,640 sq ft
5044 Butterworth Road, Mercer Island, WA 98040
• Listed Sep 29, 2025
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Listing Broker: Keller Williams Rlty Bellevue; Michael Nix; 425-454-0911
Buyer Broker: Windermere RE Greenwood
About this home
Iconic Mercer Island Waterfront! Set on 89’ of low-bank Lake Washington shoreline, along the coveted Butterworth Rd, this partially renovated home presents a rare framework to create a signature waterfront masterpiece. Private 95’ seaplane capable dock, 54’ indoor lap pool, and a grand atrium. Embrace East-facing exposure with panoramic water, sunrise and moonrise views. Existing updates provide a head start to utilize this canvas to bring your vision to fruition. Implement your creativity while enjoying seamless indoor & outdoor living with timeless lake views. Premier location with top-tier schools, parks, and the best of the PNW. A rare chance to shape a custom waterfront estate in one of Mercer Island’s most desired enclaves.
Listed by Michael Nix • Keller Williams Rlty Bellevue
Listing updated: January 31, 2026 at 04:04am
RexMont checked: moments ago
Source: NWMLS as Distributed by MLS Grid #2438780
Around this home
Property details
Interior features
- Fireplace
- Indoor Pool
- Sprinkler System
- Vaulted Ceiling(s)
- Water Heater
- 2 fireplaces (electric, wood burning)
- Roughed In basement
Kitchen
- Dishwasher(s)
- Disposal
- Double Oven
- Microwave(s)
- Stove(s)/Range(s)
Bedrooms
- 6 bedrooms total
- 3 on the main level
- 3 on the lower level
Bathrooms
- 4 full bathrooms
- 2 three-quarter bathrooms (shower, no tub)
- 2 half bathrooms
- 6.5 bathrooms total (NWMLS count)
- 4 on the main level
Layout
- 1 Story w/Bsmnt.
- 9,640 sq ft finished
- 1,220 sq ft garage
Flooring
- Hardwood
- Vinyl Plank
Heating & cooling
- Forced Air heating
- Heat Pump heating
- Central A/C cooling
- Forced Air cooling
- Heat Pump cooling
Schools
Ratings via SchoolDiggerMercer Island School District
- Buyer To VerifyPublic · Grades Elementary—
- 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
- Zoning code
- R15
- Zoning jurisdiction
- City
- Faces
- West
Systems
- Energy source
- Electric,Natural Gas
- Power production
- Electric, Natural Gas
- Water heater
- Gas
- Water heater location
- Downstairs
- Power company
- PSE
- Water company
- Mercer Island
- Sewer company
- Mercer Island
- Irrigation water rights
- No
Rooms & extras
- Pool
- Indoor
- Bathtubs
- 4
- Showers
- 6
- Fireplaces on main
- 1
- Fireplaces lower level
- 1
New construction
- Square footage source
- King County Records
- Lot size source
- King County Records
- Effective year built source
- Public 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 5044 Butterworth Road
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.
- Dec 31, 2025SoldNWMLS via MLS Grid · #2438780$8,000,000$830/sq ft
- Oct 26, 2025PendingNWMLS via MLS Grid · #2438780$9,398,000$975/sq ft
- Sep 29, 2025ListedNWMLS via MLS Grid · #2438780$9,398,000$975/sq ft
- Jun 24, 2014SoldNWMLS via MLS Grid · #603237$4,668,000$484/sq ft
- Apr 8, 2014PendingNWMLS via MLS Grid · #603237$4,668,000$484/sq ft
- Mar 11, 2014ListedNWMLS via MLS Grid · #603237$4,668,000$484/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$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
0.7 mi
Distance
$2,075,000 Sold
3 weeks ago
4 bd•2.75 ba•~3,180 sq ft•Single Family
4859 86th Avenue SE, Mercer Island, WA 98040
1%
Under list
31
Days on market
0.7 mi
Distance
$1,340,000 Sold
3 weeks ago
3 bd•2.5 ba•~1,800 sq ft•Single Family
8808 SE 54th SE, Mercer Island, WA 98040
8%
Under list
89
Days on market
0.6 mi
Distance
$3,150,000 Sold
4 weeks ago
5 bd•4.5 ba•~3,787 sq ft•Single Family
4525 90th Avenue SE, Mercer Island, WA 98040
3%
Under list
132
Days on market
0.7 mi
Distance
$1,865,000 Sold
4 weeks ago
4 bd•3 ba•~3,234 sq ft•Single Family
5021 E Mercer Way, Mercer Island, WA 98040
2%
Under list
83
Days on market
0.2 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 January 31, 2026 at 04:04am (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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