4-Unit Quadplex
For Sale
$1,200,000
120 339TH, Federal Way, WA 98003
On-site management covers all four units, supporting streamlined day-to-day operations.
Property Size3,600 SF
Price / SF$333.33
Days on Market15
Property Features for 120 339TH
General Information
Standard status
Active
Size
3,600 SF
Property subtype
Multi-family
Site & Location
Highway Access
Yes
Public Transit
Yes
Additional Details
Multifamily Units
4
Building Details
Year Built
1979
Listing Agency:
Q Star Seattle Corporation
Listed By:
Pearl Lee
(253) 564-6211
Source:
Century21northhomes
Added: Aug 18
Changed: Aug 30
Last Checked: Aug 31 at 8:08PM
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 Q Star Seattle Corporation
Investment Insights
Based on property information with market context.
This 4-unit quadplex in Federal Way provides 3,600 square feet of multifamily housing space. Built in 1979, the property has on-site management serving all units, creating an established operating structure for the residential asset. The property is positioned at 120 339TH, with bus service and light rail nearby, along with shopping and dining options. I-5 and Hwy 99 provide regional transportation access, while the King County library is directly across the street. The property is offered as an income-producing asset with an estimated cap rate around 5%.
Key Highlights
- 4‑unit quadplex with 3,600 SF of multifamily housing space
- Built in 1979
- On‑site property management serves all units
Financial Insights
Estimated NOI and Cap Rate
NOI = area × lease_rate × (100 − vacancy) / 100 × (1 − expense_ratio). Net Operating Income — what the owner takes home each year before mortgage payments and income tax. Effective rent (asking rent minus vacancy losses) minus operating costs (taxes, insurance, maintenance, management).
NOI / Yr
$60,719
Cap rate = NOI / list price × 100. Capitalization rate — annual return on a fully cash purchase, before financing. NOI divided by price. Higher means more income per dollar invested, but usually also more risk or older condition. 5–8% is typical for stabilized commercial property; double digits often signal distressed deals.
Cap Rate
5.06%
Suggested Prices Based on Cap Rates
Cap rates vary significantly by property type, market, and asset quality.
Typical U.S. stable-market ranges:
Multifamily — 4.5% to 6.5% (Class A in primary markets often sub-5%; Class C in secondary markets 6%+)
Industrial / Logistics — 5.0% to 7.0% (compressed heavily in recent years due to e-commerce demand)
Office — 6.5% to 9%+ (wide spread post-2020; CBD Class A vs. suburban Class B varies dramatically)
Retail — 5.5% to 8.5% (grocery-anchored on the low end, unanchored strip centers higher)
Hospitality / Hotels — 7.5% to 10%+ (higher due to operational risk)
Self-Storage — 5.5% to 7.5%
Medical Office — 6.0% to 7.5%
Net Lease (single tenant, credit) — 5.0% to 7.0% depending on tenant credit and lease term
Rules of thumb:
Primary markets (NYC, SF, LA, Boston, DC) trade at lower cap rates than secondary/tertiary markets, often by 100–200 bps (bps, aka basis points; 1 bp = 0.01%).
Class A assets trade ~50–150 bps tighter than Class B, and Class B tighter than Class C.
Cap rates move inversely with price — a lower cap rate means a higher price for the same NOI.
Spread to the 10-year Treasury is a common benchmark; historically 200–400 bps over the 10-year.
Cap Rate 5%
$1,214,380
$1.2M
Cap Rate 7%
$867,414
$867.4K
Cap Rate 9%
$674,656
$674.7K
Market Conditions
NOI Build-Up for 3,600 SF
Vacancy — income lost from leasable area expected to sit empty during the year, subtracted from gross rent.
EGI (Effective Gross Income) — gross rent minus vacancy losses, the realistic income before paying operating costs.
OpEx (Operating Expenses) — recurring costs to operate the property (property tax, insurance, utilities, maintenance, management); excludes financing and capital improvements.
NOI (Net Operating Income) — income a property generates after operating costs but before financing and taxes.
Gross rent
$91.8K $25.50/SF
− Vacancy
−$5.1K −$1.41/SF
EGI
$86.7K $24.09/SF
− OpEx
−$26.0K −$7.23/SF
NOI
$60.7K $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 rates vary significantly by property type, market, and asset quality.
Typical U.S. stable-market ranges:
Multifamily — 4.5% to 6.5% (Class A in primary markets often sub-5%; Class C in secondary markets 6%+)
Industrial / Logistics — 5.0% to 7.0% (compressed heavily in recent years due to e-commerce demand)
Office — 6.5% to 9%+ (wide spread post-2020; CBD Class A vs. suburban Class B varies dramatically)
Retail — 5.5% to 8.5% (grocery-anchored on the low end, unanchored strip centers higher)
Hospitality / Hotels — 7.5% to 10%+ (higher due to operational risk)
Self-Storage — 5.5% to 7.5%
Medical Office — 6.0% to 7.5%
Net Lease (single tenant, credit) — 5.0% to 7.0% depending on tenant credit and lease term
Rules of thumb:
Primary markets (NYC, SF, LA, Boston, DC) trade at lower cap rates than secondary/tertiary markets, often by 100–200 bps (bps, aka basis points; 1 bp = 0.01%).
Class A assets trade ~50–150 bps tighter than Class B, and Class B tighter than Class C.
Cap rates move inversely with price — a lower cap rate means a higher price for the same NOI.
Spread to the 10-year Treasury is a common benchmark; historically 200–400 bps over the 10-year.
Cap Rate 5%
$1,214,380
Cap Rate 7%
$867,414
Cap Rate 9%
$674,656
Alternative Uses
Best Use
Multifamily LT 5
$867.4K
$759.0K – $1.01M
NOI $60,719 @ 7.0% cap · market cap 5.06%
Second Best
Apartment 5plus
$799.4K
$699.4K – $932.6K
NOI $55,955 @ 7.0% cap · market cap 4.66%
Theoretical Best
Office A
$1.44M
$1.26M – $1.68M
NOI $100,932 @ 7.0% cap · market cap 8.41%
Zoning and permitted uses should be independently verified with authorities.
Property Analytics
Current Use
Lease Details
4
Residential units
Yes
Highway access
Location Intelligence
Trade Area within ½ mile
274
Businesses Nearby
Explore this area
Business Placement
Demographics for 98003, WA
51,751
Population
20,380
Households
2.5
Avg Household Size
37
Median Age
28%
College-Educated
88%
High-School Grad
11.5 sq mi
ZIP Area
4,500
Density / Sq Mi
$70,800
Median Household Income
$39,497
Median Earnings
$1,650
Median Rent
$428,500
Median Home Value
Market
Vacancy Rate% for Multifamily in West region
Questions? Ask Rey
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Frequently Asked Questions
What type of property is this?
Quadplex - On-site management covers all four units, supporting streamlined day-to-day operations.
Where is this quadplex located?
The property is located at 120 339TH Federal Way, WA.
What is the asking price?
The asking price for this property is $1,200,000.
What are key features of this property?
This property features: 4‑unit quadplex with 3,600 SF of multifamily housing space; Built in 1979; On‑site property management serves all units
