OFF MARKET

Listed by Travis Stewart • Windermere Real Estate Central. Bought with Windermere Real Estate/East.

Off market nov 2022 for $3.7M

$4,117,397

Est. refi paymentEst. refi $23,865/mo

•

2,630

sq ft

5300 Butterworth Rd, Mercer Island, WA 98040

About this home

Soak up the sun and take in waterfront views from this spacious mid-century rambler in Mercer Island’s Tonja Estates. Lovingly sited on a flat, nearly half-acre lot, with beautiful views of Lake Washington. This unique opportunity, offers a sense of premier waterfrontage with a shared beach located directly between the property & lake. Secluded drive opens to a sunlit oasis where walls of windows bathe the home in year round natural light. Sizeable rooms with ideal spaces for both indoor/outdoor entertaining. Grab the paddleboards from the boat house, take a swim, or stroll out the back door to the dock for a boat ride to dinner. The possibilities are endless! Complete w/ 2-car garage, covered breezeway, sport court area, generator & A/C.

Single-familyProperty Type

1969Year Built

0.45 acresLot Size

$1,566Est. Price/Sq.Ft.

2 car garageParking

Listed by Travis Stewart • Windermere Real Estate Central

Bought with Scott Whittlesey • Windermere Real Estate/East

Redfin checked: 2 minutes ago

•Source:NWMLS as Distributed by MLS Grid #2006574

Redfin Estimate

$4,117,397

$387K since sold in November 2022$17K since October

Recently sold homes
Estimate history

This home's estimate is 102.7% higher than the average sale price ($2.03M) of 6 comparable homes.

SOLD SEP 24, 2026
$2,075,000
A
4 beds3 baths3,180 sq ft
4859 86th Ave SE, Mercer Island, WA 98040
Listing provided by nwmls
SOLD SEP 15, 2026
$1,865,000
B
4 beds3.5 baths3,234 sq ft
5021 E Mercer Way, Mercer Island, WA 98040
Listing provided by nwmls
SOLD MAR 20, 2026
$2,370,000
C
4 beds3.5 baths2,570 sq ft
6010 93rd Ave SE, Mercer Island, WA 98040
Listing provided by nwmls
SOLD OCT 1, 2026
$1,825,000
D
4 beds2.5 baths2,410 sq ft
6409 Ripley Ln SE, Renton, WA 98056
Listing provided by nwmls
SOLD MAY 1, 2026
$1,925,000
E
5 beds3 baths3,100 sq ft
9027 SE 50th St, Mercer Island, WA 98040
Listing provided by nwmls
SOLD AUG 28, 2026
$2,125,000
F
4 beds2.5 baths2,960 sq ft
6815 E Mercer Way, Mercer Island, WA 98040
Listing provided by nwmls

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Earn from this home

Sell

$1,061,421

Est. take-home

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Refinance

Est. cash available

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Rent

$8,382/mo

Redfin rental estimate

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Market trends in 98040, WA

Last updated October 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-list price

98.4%

0.9% MoM

Median sale price

$2.3M

$8K MoM

Avg. days on market

11d

4 days MoM

Recently sold homes

0 MoM

New listings for sale

OPEN SAT, 1PM TO 3PM
$2,098,000
4 beds3.5 baths2,560 sq ft
7847 SE 40th St, Mercer Island, WA 98040
Robyn Kimura Hsu • Realogics Sotheby's Int'l Rlty
NEW
$536,749
2 beds2 baths1,287 sq ft
7600 SE 29th St #311, Mercer Island, WA 98040
Melanie Ghadamy • Real Broker LLC
3D & VIDEO TOUR
$11,250,000
7 beds7 baths8,680 sq ft
7445 SE 71st St, Mercer Island, WA 98040
Michael Nix • Keller Williams Rlty Bellevue
$450,000
2 beds1 bath965 sq ft
2500 81st Ave SE #112, Mercer Island, WA 98040
Thuy Nguyen • Keller Williams Eastside
3D WALKTHROUGH
$2,395,000
5 beds4 baths3,900 sq ft
6924 96th Ave SE, Mercer Island, WA 98040
Lori Scott • John L. Scott, Inc.
OPEN SAT, 1PM TO 4PM
$1,695,000
4 beds2.5 baths2,150 sq ft
6901 94th Ave SE, Mercer Island, WA 98040
Greg Rosenwald • COMPASS
3D WALKTHROUGH
$6,498,000
5 beds5 baths5,560 sq ft
9625 SE 71st St, Mercer Island, WA 98040
Kim Florence • John L. Scott, Inc.
$2,595,999
4 beds3 baths2,280 sq ft
1837 72nd Ave SE, Mercer Island, WA 98040
Travis Darby • COMPASS
$2,845,000
5 beds3.5 baths5,040 sq ft
4408 E Mercer Way, Mercer Island, WA 98040
Lori Scott • John L. Scott, Inc.
OPEN SAT, 2PM TO 4PM
$2,198,000
3 beds2.5 baths2,385 sq ft
7775 Shore Ln, Mercer Island, WA 98040
Nadia Anderson • Realogics Sotheby's Int'l Rlty
See all

Provided by Redfin

Sale history for 5300 Butterworth Rd

Year

Property tax

Land + Additions

Assessment*

2026

$31,599 (+143.6%)

$2,081,000 + $2,769,000

$4,850,000

2025

$12,970 (−20.0%)

$2,081,000 + $2,769,000

$4,850,000

2024

$16,221 (+0.4%)

$1,970,000 + $9,000

$1,979,000

2023

$16,163 (+11.4%)

$1,859,000 + $496,000

$2,355,000

2022

$14,507 (+4.2%)

$2,092,000 + $542,000

$2,634,000

2021

$13,927 (−13.3%)

$1,722,000 + $247,000

$1,969,000

2020

$16,072 (+7.4%)

$1,640,000 + $99,000

$1,739,000

2019

$14,966 (−10.3%)

$1,625,000 + $366,000

$1,991,000

2018

$16,687 (+18.4%)

$1,625,000 + $366,000

$1,991,000

2017

$14,092 (+7.5%)

$1,470,000 + $453,000

$1,923,000

2016

$13,110 (+3.8%)

$1,344,000 + $387,000

$1,731,000

2015

$12,634 (+34.2%)

$1,217,000 + $351,000

$1,568,000

2014

$9,413 (+4.9%)

$1,125,000 + $319,000

$1,444,000

2013

$8,977 (+5.4%)

$771,000 + $259,000

$1,030,000

2012

$8,517 (+0.9%)

$711,000 + $239,000

$950,000

2011

$8,439 (+6.7%)

$784,000 + $199,000

$983,000

2010

$7,910 (−8.5%)

$807,000 + $205,000

$1,012,000

2009

$8,647

$1,000,000 + $254,000

$1,254,000

Tax history for 5300 Butterworth Rd

Year

Property tax

Land + Additions

Assessment*

2026

$31,599 (+143.6%)

$2,081,000 + $2,769,000

$4,850,000

2025

$12,970 (−20.0%)

$2,081,000 + $2,769,000

$4,850,000

2024

$16,221 (+0.4%)

$1,970,000 + $9,000

$1,979,000

2023

$16,163 (+11.4%)

$1,859,000 + $496,000

$2,355,000

2022

$14,507 (+4.2%)

$2,092,000 + $542,000

$2,634,000

2021

$13,927 (−13.3%)

$1,722,000 + $247,000

$1,969,000

2020

$16,072 (+7.4%)

$1,640,000 + $99,000

$1,739,000

2019

$14,966 (−10.3%)

$1,625,000 + $366,000

$1,991,000

2018

$16,687 (+18.4%)

$1,625,000 + $366,000

$1,991,000

2017

$14,092 (+7.5%)

$1,470,000 + $453,000

$1,923,000

2016

$13,110 (+3.8%)

$1,344,000 + $387,000

$1,731,000

2015

$12,634 (+34.2%)

$1,217,000 + $351,000

$1,568,000

2014

$9,413 (+4.9%)

$1,125,000 + $319,000

$1,444,000

2013

$8,977 (+5.4%)

$771,000 + $259,000

$1,030,000

2012

$8,517 (+0.9%)

$711,000 + $239,000

$950,000

2011

$8,439 (+6.7%)

$784,000 + $199,000

$983,000

2010

$7,910 (−8.5%)

$807,000 + $205,000

$1,012,000

2009

$8,647

$1,000,000 + $254,000

$1,254,000

*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.

Public record

Public record
Zoning

Beds

Baths

Stories

Lot width

—

Lot depth

—

Lot size

0.45 Acres

Year renovated

—

Sq. Ft.

6,640

Year built

2025

Style

Single Family Residential

County

King County

APN

866140 0020

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Sep 5, 2026.

R-15

Single-Family Residential District

The purpose of the residential chapter is to identify land uses and to establish development standards that are appropriate within the residential zoning designations. The development standards provide a framework for a site to be developed consistent with the policy direction of the adopted Mercer Island Comprehensive Plan.

Permitted uses

Include but are not limited to:

Religious facility
Housing-Single unit
Educational/school
Recreation
Park & open space

Property details

Parking

Parking Information
Covered Spaces: 2
Parking Features: RV Parking, Attached Garage
Garage Spaces: 2
Has Attached Garage
Has Garage

Interior

Bedroom Information
# of Bedrooms: 4
# of Bedrooms Main: 4
Bedrooms Possible: 4

Bathroom Information
# of Full Baths (Total): 1
# of Three Quarter Baths (Total): 2
# of Full Baths (Main): 1
# of Three Quarter Baths (Main): 2

Room 1 Information
Room Type: Dining Room
Room Level: Main

Room 2 Information
Room Type: Entry Hall
Room Level: Main

Room 3 Information
Room Type: Family Room
Room Level: Main

Room 4 Information
Room Type: Kitchen With Eating Space
Room Level: Main

Room 5 Information
Room Type: Living Room
Room Level: Main

Room 6 Information
Room Type: Primary Bedroom
Room Level: Main

Room 7 Information
Room Type: Bathroom Full
Room Level: Main

Room 8 Information
Room Type: Utility Room
Room Level: Main

Room 9 Information
Room Type: Bathroom Three Quarter
Room Level: Main

Room 10 Information
Room Type: Bathroom Three Quarter
Room Level: Main

Room 11 Information
Room Type: Bedroom
Room Level: Main

Room 12 Information
Room Type: Bedroom
Room Level: Main

Room 13 Information
Room Type: Bedroom
Room Level: Main

Basement Information
Basement Features: None

Fireplace Information
Has Fireplace
# of Fireplaces: 2
Fireplace Features: Gas, Wood Burning
# of Fireplaces Main: 2

Heating & Cooling
Has Cooling

Interior Features
Interior Features: Central A/C, Forced Air, Bamboo/Cork, Ceramic Tile, Wall to Wall Carpet, Dining Room, French Doors, Security System, Skylight(s), Vaulted Ceiling(s), Wired for Generator, Fireplace, Water Heater
Appliances: Dryer, Washer
Flooring: Bamboo/Cork, Ceramic Tile, Vinyl, Carpet
Appliances Included: Dishwasher,Dryer,Garbage Disposal,Refrigerator,StoveRange,Washer

Exterior

Building Information
Building Information: Built On Lot
Roof: Composition

Exterior Features
Exterior Features: Wood

Pool Information
Has Spa

Waterfront Information
On Waterfront
Waterfront Features: Lake, No Bank

Property Information
Energy Source: Natural Gas
Sq. Ft. Finished: 2,630
Style Code: 10 - 1 Story
Property Type: Residential
Property Sub Type: Single Family Residence
Property Condition: Very Good
Has View

Land Information
Vegetation: Garden Space

Lot Information
MLS Lot Size Source: King County Records
Site Features: Athletic Court,Cable TV,Deck,Dock,Fenced-Partially,High Speed Internet,Hot Tub/Spa,Moorage,Outbuildings,Patio,RV Parking
Zoning Jurisdiction: City
Lot Features: Dead End Street, Paved
Lot Size Units: Square Feet
Lot Size Acres: 0.4505
Elevation Units: Feet

Financial

Tax Information
Tax Annual Amount: $14,507
Tax Year: 2022

Financial Information
Listing Terms: Cash Out, Conventional
Buyer Financing: Conventional

Utilities

Utility Information
Water Source: Public
Water Company: City of Mercer Island
Power Company: PSE
Sewer: Sewer Connected
Sewer Company: City of Mercer Island
Utilities: Cable Connected, High Speed Internet, Sewer Connected, Natural Gas Connected
Water Heater Location: Utility Closet
Water Heater Type: Natural Gas
Cable Connected: Xfinity
Internet Connected: Xfinity

Location

Multi-Unit Information
Furnished: Unfurnished

HOA Information
Has HOA
Association Fee: $500
Association Fee Frequency: Annually

School Information
Elementary School: Island Park Elem
Middle Or Junior High School: Islander Mid
High School: Mercer Isl High
High School District: Mercer Island

Location Information
Bus Line Nearby: true
Directions: East Mercer Way South to SE Butterworth Rd. Head East on Butterworth Rd. Home will be on your right.
Topography: Level

Community Information
Senior Exemption: false
Community Features: CCRs, Community Waterfront/Pvt Beach

Public facts

Beds: 4
Baths: 5.0
Sq. Ft.: 6,640
Stories: 2.0
Lot Size: 0.45 acres
Style: Single Family Residential
Year Built: 2025
Year Renovated: —
County: King County
APN: 866140 0020

Home facts updated by county records on Sep 5, 2026

Other

Listing Information
Mls Status: Sold

Listing Date Information
On Market Date: Thursday, October 13, 2022

Green Information
Direction Faces: East
Power Production Type: Natural Gas

Home Information
Living Area: 2,630
Living Area Units: Square Feet
Calculated Square Footage: 2630
MLS Square Footage Source: King County Records
Building Area Total: 2630
Building Area Units: Square Feet
Foundation Details: Poured Concrete
Building Name: Tonja Estates
Year Built Effective: 1969
Effective Year Built Source: Public Records
Structure Type: House
Levels: One
Entry Location: Main

Around this home

Schools

K - 12
Preschool & daycare

Island Park Elementary School

Public K-5 • Assigned • 0.6mi

9/10

Islander Middle School

Public 6-8 • Assigned • 1.6mi

9/10

Mercer Island High School

Public 9-12 • Assigned • 1.2mi

10/10

Provided by GreatSchools

Lifestyle

Provided by Walk Score and Local Logic

Local insights from Redfin agents

Mercer Island sits in the middle of Lake Washington, minutes from both Seattle and Bellevue via I-90 and the new 2 Line station. It's known for its Lake Washington waterfront estates, a median price around $2.5M, thin inventory, and 77-acre Luther...
2 weeks ago • Mercer Island
Chase Costello
Redfin Premier agent
686 deals
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Climate risks

1/10 Flood Factor

Minimal risk of a flood reaching the building in the next 30 years

1/10 Fire Factor

Unlikely to be in a wildfire in next 30 years

3/10 Heat Factor

7 days above 87° expected this year, 15 days in 30 years

1/10 Wind Factor

Minimal risk of severe winds over next 30 years

7/10 Air Factor

10 unhealthy days expected this year, 12 days in 30 years

Provided by First Street

Historical weather

Mercer Island, WA • 98040

Average low and high temperatures (°F)

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Sun exposure

In this area, properties receive around 8.8 hours in June and 1.7 hours in December, placing it below the U.S. average for solar exposure.

8.8 hrs

1.7 hrs

JuneDecember

Provided by Shadowmap

Estimated sale price

$3.91M – $4.74M

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Listing provided by NWMLS as Distributed by MLS Grid

Home values near 5300 Butterworth Rd

Data from public records.

Address	Redfin Estimate
5335 Butterworth Rd, Mercer Island, WA 5 Beds \| 3 Baths \| 3810 Sq. Ft.	$2,880,685
5319 Butterworth Rd, Mercer Island, WA 4 Beds \| 2.5 Baths \| 2220 Sq. Ft.	$1,840,798

Address	Redfin Estimate
5060 Butterworth Rd, Mercer Island, WA 4 Beds \| 3.5 Baths \| 3780 Sq. Ft.	$5,146,565
5044 Butterworth Rd, Mercer Island, WA 6 Beds \| 7 Baths \| 9640 Sq. Ft.	$9,193,334

Address	Redfin Estimate
5336 Butterworth Rd, Mercer Island, WA 5 Beds \| 4.5 Baths \| 7409 Sq. Ft.	$9,348,211
5220 Butterworth Rd, Mercer Island, WA 4 Beds \| 3.5 Baths \| 3280 Sq. Ft.	$2,846,197

Property information provided by NWMLS as Distributed by MLS Grid when last listed in 2022. This data may not match . Learn more.

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About this home

Redfin Estimate

Earn from this home

Market trends in 98040, WA

Sale history for 5300 Butterworth Rd

Tax history for 5300 Butterworth Rd

Public record

Property details

Around this home

Schools

Lifestyle

Local insights from Redfin agents

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 98040

Home values near 5300 Butterworth Rd

More real estate resources