15604 21st Ave
Burien, WA 98166
3 bd 4 ba 1,320 sqft Built 1940 Lot 11,177 sqft single_family
No recorded sales
Location
Timeline: Sale, Listing & Tax History
Recorded events
No recorded events
No sale or listing events are on file for this property.
Tax assessment history
| Year | Building | Land | Total assessed | Tax paid |
|---|---|---|---|---|
| 2025 | $203,000 | $317,000 | $520,000 | $5,908 |
| 2024 | $238,000 | $286,000 | $524,000 | $5,601 |
| 2023 | $221,000 | $283,000 | $504,000 | $5,565 |
| 2022 | $186,000 | $239,000 | $425,000 | $5,316 |
| 2021 | $164,000 | $212,000 | $376,000 | $4,884 |
| 2020 | $224,000 | $184,000 | $408,000 | $5,239 |
| 2019 | $212,000 | $174,000 | $386,000 | $4,602 |
| 2018 | $199,000 | $152,000 | $351,000 | $4,986 |
| 2017 | $154,000 | $136,000 | $290,000 | $4,096 |
| 2016 | $142,000 | $124,000 | $266,000 | $3,640 |
| 2015 | $114,000 | $110,000 | $224,000 | $3,220 |
| 2014 | $72,000 | $129,000 | $201,000 | $3,050 |
| 2013 | $55,000 | $125,000 | $180,000 | $2,772 |
| 2012 | $54,000 | $167,000 | $221,000 | $2,908 |
| 2011 | $57,000 | $167,000 | $224,000 | $2,985 |
| 2009 | $97,000 | $181,000 | $278,000 | $3,097 |
| 2007 | $164,000 | $100,000 | $264,000 | $2,837 |
Property facts
Year built
1940
Property type
single_family
Stories
2
Beds
3
Baths
4
Living area
1,320 sqft
Lot size
11,177 sqft
ZIP code
98166
City
Burien
Street
21st Ave
Coordinates
47.46298, -122.36015
Comparable properties nearby
Block-level micro-comps
Same street, ±3 house numbers, sold in the last 24 monthsFrequently asked questions
When did 15604 21st Ave last sell?
No public-record sale is on file for 15604 21st Ave.
What is the current tax assessment for 15604 21st Ave?
The most recent total assessment for 15604 21st Ave (year 2025) is $520,000 with $5,908 in property tax.
When was 15604 21st Ave built?
15604 21st Ave was built in 1940.
How does 15604 21st Ave compare to others on 21st Ave?
We track 8 other properties on 21st Ave. Browse the list under "Other properties on 21st Ave" to compare beds, baths, and sale history.
What are the property facts for 15604 21st Ave?
15604 21st Ave is a 3 bed, 4 bath, 1,320 sqft, 11,177 sqft lot single_family.
Is 15604 21st Ave a flip candidate?
No — 15604 21st Ave does not appear in our flips dataset.
Is 15604 21st Ave a tax-appeal candidate?
No — 15604 21st Ave is not currently flagged as a tax-appeal candidate.
Forecast for this area
ZIP-area linear projection — not a per-property automated valuationQuarterly trend
-4.6%
Implied 1-yr
-18.2%
2026 Q3
$900K
2026 Q4
$900K
ZIP 98166 — Median Price History + Forecast
Explore nearby
Geography
Other properties on 21st Ave