Quadplex with Private Outdoor
15609 8th Avenue SW, Burien, WA 98166
For Sale
$1,100,999
Four two-bedroom residences feature fireplaces, double-pane windows and individual decks or patios.
Property Size3,696 SF
Price / SF$297.89
Days on Market18
Property Features for 15609 8th Avenue SW
General Information
Standard status
Size
Total Parking Spaces
Property subtype
Units
Unit Mix
Multifamily Units
Additional Details
Tenant in Place
Amenities
fireplaces
private decks or patios
double-pane windows
on-site coin-operated laundry
Building Details
Year Built
Buildings
Listing Agency:
Brierwood Realty
Listed By:
Adi Gueorguieva · License #NWM106170
Source:
Jacobneumanrealestate
Added: Oct 20
Changed: Nov 6
Last Checked: Nov 6 at 3:05PM
Displayed information is deemed reliable but is not guaranteed and should be independently verified. All listing content including descriptions, pricing, images are the copyrighted material of Brierwood Realty
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Investment Insights
Based on property information with market context.
This 3,696-square-foot quadplex, built in 1984, contains four two-bedroom units. Each residence has a fireplace and a private deck or patio, along with double-pane windows. Three units include private en-suite three-quarter baths. Unit 1 received a full remodel in 2023 and a later refresh that included a new water heater. A roof replacement was completed in April 2026, with exterior painting and landscaping updates also reported. The parking area has six off-street spaces, and coin-operated laundry is on site.
The property is at 15609 8th Avenue SW in Burien, with a Walk Score of 89. Olde Burien, Town Center, shopping and dining are nearby. Three units have had long-term tenants, and the property offers the option to occupy one unit while renting the others.
The property is at 15609 8th Avenue SW in Burien, with a Walk Score of 89. Olde Burien, Town Center, shopping and dining are nearby. Three units have had long-term tenants, and the property offers the option to occupy one unit while renting the others.
Key Highlights
- Four 2‑bedroom units in 3,696 square feet
- Three units have private en‑suite 3/4 baths
- Unit 1 remodeled in 2023; refreshed with a new water heater
Financial Insights
Estimated NOI and Cap Rate
NOI / Yr
$62,338
Cap Rate
5.66%
Suggested Prices Based on Cap Rates
Cap Rate 5%
$1,246,760
$1.2M
Cap Rate 7%
$890,543
$890.5K
Cap Rate 9%
$692,644
$692.6K
Market Conditions
NOI Build-Up for 3,696 SF
Gross rent
$94.2K $25.50/SF
− Vacancy
−$5.2K −$1.41/SF
EGI
$89.1K $24.09/SF
− OpEx
−$26.7K −$7.23/SF
NOI
$62.3K $16.87/SF
Area
King County, WA
Vacancy
5.51%
Lease Rate
$25.50 /SF/Yr
Expense Ratio
30.00%
Simulate Cap Rate and NOI
Suggested Prices Based on Cap Rates
Cap Rate 5%
$1,246,760
Cap Rate 7%
$890,543
Cap Rate 9%
$692,644
Alternative Uses
Best Use
Multifamily LT 5
$890.5K
$779.2K – $1.04M
NOI $62,338 @ 7.0% cap · market cap 5.66%
Second Best
Apartment 5plus
$820.7K
$718.1K – $957.5K
NOI $57,447 @ 7.0% cap · market cap 5.22%
Theoretical Best
Office A
$1.48M
$1.30M – $1.73M
NOI $103,624 @ 7.0% cap · market cap 9.41%
Zoning and permitted uses should be independently verified with authorities.
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Lease Details
4
Residential units
Location Intelligence
Trade Area within ½ mile
560
Businesses Nearby
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Business Placement
Demographics for 98166, WA
22,152
Population
9,766
Households
2.3
Avg Household Size
45
Median Age
45%
College-Educated
93%
High-School Grad
5.8 sq mi
ZIP Area
3,819
Density / Sq Mi
$112,191
Median Household Income
$63,011
Median Earnings
$1,739
Median Rent
$785,700
Median Home Value
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Market
Average Price Trend$/SF for Quadplexes in King County, WA
Properties on Market for Quadplexes in King County
Vacancy Rate% for Multifamily in West region
Frequently Asked Questions
What type of property is this?
Quadplex - Four two-bedroom residences feature fireplaces, double-pane windows and individual decks or patios.
Where is this quadplex located?
The property is located at 15609 8th Avenue SW Burien, WA.
What is the asking price?
The asking price for this property is $1,100,999.
What are key features of this property?
This property features: Four 2‑bedroom units in 3,696 square feet; Three units have private en‑suite 3/4 baths; Unit 1 remodeled in 2023; refreshed with a new water heater
