21520 Tramp Harbor Rd SW, Vashon, WA 98070

Listed by Linda Bianchi • Windermere R.E. Vashon Island. Bought with Windermere Real Estate Co.

Off Market May 2002 for $340K

$1,173,375

Est. refi paymentEst. refi $2,152/mo

•

2,100

sq ft

21520 Tramp Harbor Rd SW, Vashon, WA 98070

About this home

Single-familyProperty Type

1967Year Built

0.56 acresLot Size

$559Est. Price/Sq.Ft.

Listed by Linda Bianchi • Windermere R.E. Vashon Island

Bought with • Windermere Real Estate Co.

Redfin checked: 3 minutes ago

•Source:NWMLS as Distributed by MLS Grid #21133381

Redfin Estimate

$1,173,375

$833K since sold in May 2002$8,000 since August

Recently sold homes
Estimate history
Homes for sale

This home's estimate is 19.6% higher than the average sale price ($981K) of 6 comparable homes.

SOLD MAY 26, 2026
$819,000
A
3 beds3 baths1,960 sq ft
21007 Tramp Harbor Rd SW, Vashon, WA 98070
SOLD OCT 22, 2025
$800,000
B
4 beds2 baths2,000 sq ft
23405 80th Ave SW, Vashon, WA 98070
BOUGHT WITH REDFIN JUL 15, 2026
$1,373,000
C
2 beds3.5 baths2,090 sq ft
21206 Tramp Harbor Rd SW, Vashon, WA 98070
SOLD DEC 3, 2025
$895,000
D
3 beds3 baths2,560 sq ft
6809 SW Maury Park Rd, Vashon, WA 98070
SOLD MAY 22, 2026
$1,137,500
E
3 beds2.5 baths1,860 sq ft
23134 Vashon Hwy SW, Vashon, WA 98070
SOLD JUL 29, 2026
$860,000
F
2 beds2.5 baths1,675 sq ft
22604 Deppman Rd SW, Vashon, WA 98070

Claim this home to receive a free report every month with insights on the changing estimate.

Earn from this home

Refinance

Est. cash available

Get cash now or lower your monthly rate

Rent

$3,115/mo

Redfin rental estimate

List your home for rent

Market trends in 98070, WA

Last updated August 2026

Buyer's Market

Seller's Market

Seller's market

Sale-to-List Price

100.0%

0.7% MoM

Median sale price

$890K

$10K MoM

Avg. days on market

1 days MoM

Recently sold homes

2 MoM

New listings for sale

OPEN FRI, 4PM TO 6PM
$439,000
2 beds2 baths784 sq ft
20215 81st Ave, Vashon, WA 98070
Jim Marsh • John L. Scott Vashon
3D & VIDEO TOUR
$2,195,000
5 beds4 baths5,470 sq ft
18106 115th Ave SW, Vashon, WA 98070
Nicole Donnelly Martin • Vashon Isl. Sotheby's Int'l RE
3D & VIDEO TOUR
$1,185,000
3 beds5 baths4,500 sq ft
7206 SW 248th St, Vashon, WA 98070
Nicole Donnelly Martin • Vashon Isl. Sotheby's Int'l RE
3D WALKTHROUGH
$825,000
3 beds1.5 baths1,500 sq ft
10206 SW Quartermaster Dr, Vashon, WA 98070
Nicole Donnelly Martin • Vashon Isl. Sotheby's Int'l RE
OPEN SAT, 1PM TO 3PM
$770,000
3 beds3 baths1,920 sq ft
10514 SW 110th St, Vashon, WA 98070
Sophia de Groen • Windermere Vashon
OPEN SUN, 1:30PM TO 3:30PM
$699,000
2 beds2 baths1,800 sq ft
8760 SW 190th St, Vashon, WA 98070
Heidi Grimsley • John L. Scott Vashon
FOR SALE BY OWNER
$635,000
2 beds1 bath950 sq ft
17109 135th Pl SW, Vashon, WA 98070
See all

Provided by Redfin

Sale history for 21520 Tramp Harbor Rd SW

Year

Property tax

Land + Additions

Assessment*

2026

$1,483 (+0.4%)

$372,000 + $735,000

$1,107,000

2025

$1,477 (−4.3%)

$372,000 + $735,000

$1,107,000

2024

$1,543 (+16.8%)

$349,000 + $794,000

$1,143,000

2023

$1,321 (−21.7%)

$340,000 + $718,000

$1,058,000

2022

$1,688 (−7.9%)

$374,000 + $830,000

$1,204,000

2021

$1,833 (+8.0%)

$295,000 + $595,000

$890,000

2020

$1,697 (−0.3%)

$269,000 + $475,000

$744,000

2019

$1,703 (−76.3%)

$327,000 + $304,000

$631,000

2018

$7,172 (+23.2%)

$327,000 + $304,000

$631,000

2017

$5,822 (−5.6%)

$312,000 + $248,000

$560,000

2016

$6,167 (+35.8%)

$267,000 + $212,000

$479,000

2015

$4,540 (−0.9%)

$267,000 + $227,000

$494,000

2014

$4,583 (+5.2%)

$235,000 + $116,000

$351,000

2013

$4,355 (−2.9%)

$235,000 + $80,000

$315,000

2012

$4,487 (+1.9%)

$235,000 + $80,000

$315,000

2011

$4,402 (−43.4%)

$279,000 + $87,000

$366,000

2010

$7,775 (+13.8%)

$279,000 + $137,000

$416,000

2009

$6,833

$279,000 + $509,000

$788,000

Tax history for 21520 Tramp Harbor Rd SW

Year

Property tax

Land + Additions

Assessment*

2026

$1,483 (+0.4%)

$372,000 + $735,000

$1,107,000

2025

$1,477 (−4.3%)

$372,000 + $735,000

$1,107,000

2024

$1,543 (+16.8%)

$349,000 + $794,000

$1,143,000

2023

$1,321 (−21.7%)

$340,000 + $718,000

$1,058,000

2022

$1,688 (−7.9%)

$374,000 + $830,000

$1,204,000

2021

$1,833 (+8.0%)

$295,000 + $595,000

$890,000

2020

$1,697 (−0.3%)

$269,000 + $475,000

$744,000

2019

$1,703 (−76.3%)

$327,000 + $304,000

$631,000

2018

$7,172 (+23.2%)

$327,000 + $304,000

$631,000

2017

$5,822 (−5.6%)

$312,000 + $248,000

$560,000

2016

$6,167 (+35.8%)

$267,000 + $212,000

$479,000

2015

$4,540 (−0.9%)

$267,000 + $227,000

$494,000

2014

$4,583 (+5.2%)

$235,000 + $116,000

$351,000

2013

$4,355 (−2.9%)

$235,000 + $80,000

$315,000

2012

$4,487 (+1.9%)

$235,000 + $80,000

$315,000

2011

$4,402 (−43.4%)

$279,000 + $87,000

$366,000

2010

$7,775 (+13.8%)

$279,000 + $137,000

$416,000

2009

$6,833

$279,000 + $509,000

$788,000

*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
Permits

Beds

Baths

2.5

Stories

Lot width

—

Lot depth

—

Lot size

0.51 Acres

Year renovated

2007

Sq. Ft.

3,070

Year built

1967

Style

Single Family Residential

County

King County

APN

888600 0077

Parking Spaces

—

Basement

—

Accessible

—

HOA Dues

—

Garage

—

Features

—

Last updated by owner on Jul 6, 2026.

RA-2.5

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-2.5 in rural areas where the predominant lot pattern is below five acres in size for lots established prior to the adoption of the 1994 Comprehensive Plan.

Permitted uses

Include but are not limited to:

Livestock production
Winery & vineyard
Housing-Other
Infrastructure
Police station
Agriculture-Cropland

Property details

Interior

Bedroom Information
# of Bedrooms: 4
# of Bedrooms Main: 2
# of Beds Lower: 2
Bedrooms Possible: 4

Bathroom Information
# of Full Baths (Total): 2
# of Half Baths (Total): 1
# of Full Baths (Main): 1
# of Full Baths (Lower): 1
# of Half Baths (Main): 1

Room 1 Information
Room Type: Den/Office
Room Level: Main

Room 2 Information
Room Type: Bathroom Full
Room Level: Lower

Room 3 Information
Room Type: Bedroom
Room Level: Lower

Room 4 Information
Room Type: Bedroom
Room Level: Lower

Room 5 Information
Room Type: Bathroom Full
Room Level: Main

Room 6 Information
Room Type: Bathroom Half
Room Level: Main

Room 7 Information
Room Type: Living Room
Room Level: Main

Room 8 Information
Room Type: Primary Bedroom
Room Level: Main

Room 9 Information
Room Type: Bedroom
Room Level: Main

Room 10 Information
Room Type: Dining Room
Room Level: Main

Room 11 Information
Room Type: Entry Hall
Room Level: Main

Room 12 Information
Room Type: Family Room
Room Level: Lower

Room 13 Information
Room Type: Kitchen Without Eating Space
Room Level: Main

Room 14 Information
Room Type: Utility Room
Room Level: Main

Basement Information
Basement Features: Finished

Fireplace Information
Has Fireplace
# of Fireplaces: 2
# of Fireplaces Main: 1
# of Fireplaces Lower: 1

Heating & Cooling
Has Heating

Interior Features
Interior Features: Ceramic Tile, Hardwood, Wall to Wall Carpet, Dining Room, Hot Tub/Spa, Fireplace, Water Heater
Appliances: Dryer, Washer
Flooring: Ceramic Tile, Hardwood, Vinyl, Carpet
Appliances Included: Dishwasher,Dryer,Garbage Disposal,Range/Oven,Refrigerator,Washer

Exterior

Building Information
Building Information: Built On Lot
Roof: Torch Down

Exterior Features
Exterior Features: Wood

Pool Information
Has Spa

Waterfront Information
On Waterfront
Waterfront Features: Bank-High, Sound
Waterfront Footage: 101

Property Information
Sq. Ft. Finished: 2,100
Style Code: 12 - 2 Story
Property Type: Residential
Property Sub Type: Single Family Residence
Property Condition: Good
Has View

Land Information
Vegetation: Fruit Trees, Garden Space

Lot Information
Site Features: Cable TV,Deck,Dog Run,Green House,Hot Tub/Spa,Outbuildings,Propane,Shop
Lot Features: Paved, Secluded
Lot Size Units: Square Feet
Lot Size Acres: 0.5625
Elevation Units: Feet

Financial

Tax Information
Tax Annual Amount: $3,507
Tax Year: 2001

Financial Information
Listing Terms: Cash Out
Buyer Financing: Conventional

Utilities

Utility Information
Water Source: Public
Water Company: KING COUNTY #19
Power Company: PUGET SOUND ENE
Sewer: Septic Tank
Utilities: Cable Connected, Septic System, Electric
Water Heater Location: ELEC./LOWER
Water Heater Type: ELEC./LOWER

Location

Multi-Unit Information
Furnished: Unfurnished

HOA Information
Association Fee Frequency: Monthly

School Information
High School District: Vashon Island

Location Information
Bus Line Nearby: false
Directions: South On Monument Road. East On 216th. Left On Tramp Harbor Road.
Topography: Level

Community Information
Senior Exemption: false

Public facts

Beds: 1
Baths: 2.5
Sq. Ft.: 3,070
Stories: 1.0
Lot Size: 0.51 acres
Style: Single Family Residential
Year Built: 1967
Year Renovated: 2007
County: King County
APN: 888600 0077

Home facts updated by county records on Jul 6, 2026

Other

Listing Information
Mls Status: Sold

Listing Date Information
On Market Date: Friday, October 12, 2001

Green Information
Power Production Type: Electric

Home Information
Living Area: 2,100
Living Area Units: Square Feet
Calculated Square Footage: 2100
MLS Square Footage Source: PER OWNER
Building Area Total: 2100
Building Area Units: Square Feet
Foundation Details: Poured Concrete
Structure Type: House
Levels: Two
Entry Location: Main

Around this home

Schools

Chautauqua Elementary School

Public PreK-5 • Assigned • 1.3mi

8/10

Mcmurray Middle School

Public 6-8 • Assigned • 1.4mi

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)

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

$1.12M – $1.35M

Sell confidently with a local market expert in Vashon. 3 minutes to get started.

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$699,000

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FOR SALE BY OWNER

$635,000

2 beds1 bath950 sq ft

17109 135th Pl SW, Vashon, WA 98070

Home values near 21520 Tramp Harbor Rd SW

Data from public records.

Address	Redfin Estimate
21412 Tramp Harbor Road Southwest, Vashon, WA 3 Beds \| 2 Baths \| 1920 Sq. Ft.	$843,740
21508 Tramp Harbor Road Southwest, Vashon, WA 2 Beds \| 2.5 Baths \| 2600 Sq. Ft.	$1,131,798

Address	Redfin Estimate
21524 Tramp Harbor Road Southwest, Vashon, WA 2 Beds \| 2 Baths \| 1410 Sq. Ft.	$779,586
21405 Tramp Harbor Road Southwest, Vashon, WA 3 Beds \| 3.5 Baths \| 3520 Sq. Ft.	$1,825,562

Address	Redfin Estimate
21501 Tramp Harbor Road Southwest, Vashon, WA 1 Beds \| 1 Baths \| 858 Sq. Ft.	$682,185
21514 Tramp Harbor Road Southwest, Vashon, WA 3 Beds \| 3 Baths \| 2130 Sq. Ft.	—

Property information provided by NWMLS as Distributed by MLS Grid when last listed in 2001. This data may not match . Learn more.

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GreatSchools Ratings provided by GreatSchools.org.

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About this home

Redfin Estimate

Earn from this home

Market trends in 98070, WA

Sale history for 21520 Tramp Harbor Rd SW

Tax history for 21520 Tramp Harbor Rd SW

Public record

Property details

Around this home

Schools

Lifestyle

Climate risks

Historical weather

Sun exposure

Nearby similar homes

New listings for sale in 98070

Home values near 21520 Tramp Harbor Rd SW

More real estate resources