21501 Tramp Harbor Rd SW is a 858 square foot house on a 1.02 acre lot with 1 bedroom and 1 bathroom. - it last sold on March 31, 2016 for $350,000. Based on Redfin's Vashon data, we estimate the home's value is $675,703.
Single-familyProperty Type
1958Year Built
1.02 acresLot Size
$788Est. Price/Sq.Ft.
Source:Public Records
Redfin Estimate
$675,703
$326K since sold in March 2016$14K since July
Recently sold homes
Estimate history
Homes for sale
This home's estimate is 8.4% lower than the average sale price ($738K) of 6 comparable homes.
*Taxable value of land and structures on it ("additions") is determined regularly by local assessors and does not affect market price.
Zoning
RA-5
Rural Area Zone
The purpose of the rural zone (RA) is to provide for an area-wide long-term rural character and to minimize land use conflicts with nearby agricultural or forest production districts or mineral extraction sites. These purposes are accomplished by: Limiting residential densities and permitted uses to those that are compatible with rural character and nearby resource production districts and sites and are able to be adequately supported by rural service levels; Allowing small scale farming and forestry activities and tourism and recreation uses that can be supported by rural service levels and that are compatible with rural character; Increasing required setbacks to minimize conflicts with adjacent agriculture, forest or mineral zones; and Requiring tracts created through cluster development to be designated as permanent open space or as permanent resource use.; Use of this zone is appropriate in rural areas designated by the Comprehensive Plan as follows: RA-5 in rural areas where the predominant lot pattern is five acres or greater but less than ten acres in size and the area is generally environmentally unconstrained
Permitted uses
Include but are not limited to:
Livestock production
Winery & vineyard
Housing-Other
Infrastructure
Police station
Agriculture-Cropland
Property details
Interior
Bathroom Information
# of Full Baths: 1
Heating & Cooling
Heating Fuel Type: Electric
Heating Type: Baseboard Electric
Fireplace Information
# of Fireplaces: 1
Has Fireplace
Exterior
Exterior Information
Physical Condition: Average
Building Construction Quality: Fair
Building Type: Single Family
View Information
View: City
Property Information
Subdivision Name: VASHON GARDENS ADD
Living Sq. Ft: 858
Ground Floor Sq. Ft: 858
Building Sq. Ft: 858
# of Stories: 1
Legal Description: VASHON GARDENS ADD THAT POR OF TR 15 VASHON GARDENS & ALL OF WHAT IS BOUNDED BY A LN DESC AS FOLLOWS: BEG ON THE SLY LN OF SD TR 15 AT A PT 292 FT WLY OF SE COR THOF TH NLY AT R/A TO SD SLY LN 100 FT; TH WLY PLLW SD SLY LN TO AN INXN WITH A LN HEREAFTER CALLED LN "A" WCH IS PLLW ELY LN OF SD TR 15 & 292 FT WLY OF MEAS ALG THE N LN FROM THE NE COR OF SD TR 15; TH NWLY ALG SD LN "A" TO THE N LN OF THE S 200 FT IN WIDTH OF SD TR 15; TH ELY ALG SD N LN TO THE ELY LN OF TR 15; TH NELY ALG SD ELY LN TO THE NE COR OF SD TR 15; TH WLY ALG THE NLY LN OF SD TR 15 TO AN INXN WITH A LN WCH IS 20 FT WLY OF & MEAS AT R/A TO LN "A"; TH SELY ALG SD INXN LN TO THE S LN OF TR 15; TH ELY ALG SD S LN TO POB; EXC THAT POR OF TR 15 DESC AS FOLLOWS: BEG AT THE NE
Lot Information
# of Buildings: 1
Land Sq. Ft: 44,453
Legal Lot Number: 15
Municipality Name: KING COUNTY
Acres: 1.0205
Zoning Code: RA5
County Use Description: SINGLE FAMILY(RES USE/ZONE)
Utility Information
Sewer Type: Private
Water Service Type: Public
Financial
Assessor Information
Assessment Year: 2025
Public facts
Beds: 1
Baths: 1.0
Sq. Ft.: 858
Stories: 1.0
Lot Size: 1.02 acres
Style: Single Family Residential
Year Built: 1958
Year Renovated: —
County: King County
APN: 888600 0082
Home facts updated by county records on Jul 6, 2026
Around this home
Schools
Chautauqua Elementary School
Public PreK-5 • Assigned • 1.2mi
8/10
Mcmurray Middle School
Public 6-8 • Assigned • 1.3mi
8/10
Vashon Island High School
Public 9-12 • Assigned • 1.2mi
9/10
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
6/10 Air Factor
8 unhealthy days expected this year, 9 days in 30 years
Provided by First Street
Historical weather
Vashon, WA • 98070
Average low and high temperatures (°F)
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47
51
43
48
41
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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
$642,000 – $778,000
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