5034 Butterworth Rd is a 2,430 square foot house on a 10,454 square foot lot with 3 bedrooms and 2 bathrooms. Based on Redfin's Mercer Island data, we estimate the home's value is $2,970,401.
Single-familyProperty Type
1981Year Built
10,454 sq ftLot Size
$1,222Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$2,970,401
$25K since September
Recently sold homes
Estimate history
This home's estimate is 48.6% higher than the average sale price ($2.00M) of 6 comparable homes.
As the MLS and public records start to fill up, we'll list the details here.
Year
Property tax
Land + Additions
Assessment*
2026
$25,420 (+18.8%)
$3,826,000 + $75,000
$3,901,000
2025
$21,405 (+1.3%)
$3,826,000 + $75,000
$3,901,000
2024
$21,133 (+0.3%)
$2,588,000 + $680,000
$3,268,000
2023
$21,060 (+11.4%)
$2,442,000 + $627,000
$3,069,000
2022
$18,900 (+4.2%)
$2,748,000 + $685,000
$3,433,000
2021
$18,142 (+15.5%)
$2,262,000 + $304,000
$2,566,000
2020
$15,701 (+2.3%)
$2,155,000 + $111,000
$2,266,000
2019
$15,342 (−10.3%)
$1,732,000 + $309,000
$2,041,000
2018
$17,094 (+14.6%)
$1,732,000 + $309,000
$2,041,000
2017
$14,921 (+7.5%)
$1,666,000 + $304,000
$1,970,000
2016
$13,878 (+3.8%)
$1,523,000 + $310,000
$1,833,000
2015
$13,369 (+6.1%)
$1,379,000 + $281,000
$1,660,000
2014
$12,600 (+4.9%)
$1,275,000 + $253,000
$1,528,000
2013
$12,017 (−0.9%)
$1,259,000 + $120,000
$1,379,000
2012
$12,125 (+0.9%)
$1,161,000 + $111,000
$1,272,000
2011
$12,014 (+6.7%)
$1,279,000 + $121,000
$1,400,000
2010
$11,258 (−10.5%)
$1,317,000 + $124,000
$1,441,000
2009
$12,572
$1,500,000 + $143,000
$1,643,000
Tax history for 5034 Butterworth Rd
Year
Property tax
Land + Additions
Assessment*
2026
$25,420 (+18.8%)
$3,826,000 + $75,000
$3,901,000
2025
$21,405 (+1.3%)
$3,826,000 + $75,000
$3,901,000
2024
$21,133 (+0.3%)
$2,588,000 + $680,000
$3,268,000
2023
$21,060 (+11.4%)
$2,442,000 + $627,000
$3,069,000
2022
$18,900 (+4.2%)
$2,748,000 + $685,000
$3,433,000
2021
$18,142 (+15.5%)
$2,262,000 + $304,000
$2,566,000
2020
$15,701 (+2.3%)
$2,155,000 + $111,000
$2,266,000
2019
$15,342 (−10.3%)
$1,732,000 + $309,000
$2,041,000
2018
$17,094 (+14.6%)
$1,732,000 + $309,000
$2,041,000
2017
$14,921 (+7.5%)
$1,666,000 + $304,000
$1,970,000
2016
$13,878 (+3.8%)
$1,523,000 + $310,000
$1,833,000
2015
$13,369 (+6.1%)
$1,379,000 + $281,000
$1,660,000
2014
$12,600 (+4.9%)
$1,275,000 + $253,000
$1,528,000
2013
$12,017 (−0.9%)
$1,259,000 + $120,000
$1,379,000
2012
$12,125 (+0.9%)
$1,161,000 + $111,000
$1,272,000
2011
$12,014 (+6.7%)
$1,279,000 + $121,000
$1,400,000
2010
$11,258 (−10.5%)
$1,317,000 + $124,000
$1,441,000
2009
$12,572
$1,500,000 + $143,000
$1,643,000
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Zoning
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
Interior
Bathroom Information
# of Full Baths: 2
Heating & Cooling
Heating Fuel Type: Electric
Heating Type: Heat Pump
Fireplace Information
# of Fireplaces: 1
Has Fireplace
Exterior
Exterior Information
Physical Condition: Average
Building Construction Quality: Good
Building Type: Single Family
View Information
View: City
Property Information
Subdivision Name: MERCER ISLAND RESIDENCE 5034 B
Living Sq. Ft: 2,430
Ground Floor Sq. Ft: 1,630
Building Sq. Ft: 2,980
# of Stories: 2
Legal Description: SH LDS ADJ N 70 FT OF S 300 FT OF GL 1 PLAT BLOCK: PLAT LOT:
Parking & Garage Information
Parking Type: Attached Garage
Garage/Parking Sq. Ft: 550
Garage / Carport Type: Attached
Lot Information
# of Buildings: 1
Land Sq. Ft: 10,454
Legal Lot Number: 19-24
Legal Block Number: 9027
School Tax District: MERCER ISLAND #400
Municipality Name: MERCER ISLAND
Acres: 0.24
Zoning Code: R15
County Use Description: SINGLE FAMILY(RES USE/ZONE)
Utility Information
Sewer Type: Public
Water Service Type: Public
Financial
Assessor Information
Assessment Year: 2025
Public facts
Beds: 3
Baths: 2.0
Sq. Ft.: 2,430
Stories: 2.0
Lot Size: 10,454 square feet
Style: Single Family Residential
Year Built: 1981
Year Renovated: —
County: King County
APN: 192405 9027
Home facts updated by county records on Sep 5, 2026
Around this home
Schools
Island Park Elementary School
Public K-5 • Assigned • 0.7mi
9/10
Islander Middle School
Public 6-8 • Assigned • 1.6mi
9/10
Mercer Island High School
Public 9-12 • Assigned • 1.1mi
10/10
Provided by GreatSchools
Lifestyle
Provided by Walk Score and Local Logic
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)
48
37
50
38
55
42
63
45
69
50
75
55
80
59
80
61
75
57
62
48
54
44
50
41
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
$2.82M – $3.42M
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