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31003 18th Ave S, Federal Way, WA 98003

Two flexible structures offer private entrances, restrooms, and options for multiple occupants or shared office use.

Property Size5,193 SF
Price / SF$365.88
Days on Market49

Property Features for 31003 18th Ave S

General Information

Standard status Active
Size 5,193 SF
Total Parking Spaces 14
Property subtype OFFICE
Zoning BC

Site & Location

Highway Access Yes
Public Transit Yes

Additional Details

Office Units 6

Building Details

Buildings 2
Tenancy Multi
Listing Agency: Red Rock Real Estate
Listed By: Connie Vega
Source: Moodyscre
Added: Sep 9 Changed: Oct 26 Last Checked: Oct 26 at 6:19PM

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 Red Rock Real Estate

Rey
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Review the available facts, identify missing information and prepare questions for the agent.

Investment Insights

Based on property information with market context.

This office property comprises two remodeled buildings totaling 5,193 square feet on a corner lot. The improvements can support as many as six separate office spaces, with individual entrances and bathrooms. Building One contains 3,617 square feet, including a 3,047-square-foot main level with private offices, a kitchenette, and four bathrooms, plus a 570-square-foot lower-level office with large windows. Building Two provides 1,576 square feet with three private offices, open workspace, reception, and two restrooms; its layout can serve one user or be divided into two suites.

The site includes 14 parking stalls and potential yard space. BC zoning allows a broad range of potential uses. The property is one block from Pacific Hwy, with I-5 and a new light rail station approximately 5 minutes away.

The configuration supports full-building occupancy, partial owner use, or separate office leasing within the two structures.

Key Highlights

  • Two remodeled office buildings totaling 5,193 square feet
  • Up to six separate office spaces, each with its own entrance and bathroom
  • Building One includes 3,617 square feet; Building Two includes 1,576 square feet

Financial Insights

Estimated NOI and Cap Rate

NOI / Yr
$109,505
Cap Rate
5.76%
Suggested Prices Based on Cap Rates
Cap Rate 5%
$2,190,100 $2.2M
Cap Rate 7%
$1,564,357 $1.6M
Cap Rate 9%
$1,216,722 $1.2M
Market Conditions
NOI Build-Up for 5,193 SF
Gross rent
$186.9K $36.00/SF
− Vacancy
−$40.9K −$7.88/SF
EGI
$146.0K $28.12/SF
− OpEx
−$36.5K −$7.03/SF
NOI
$109.5K $21.09/SF
Area
King County, WA
Vacancy
21.90%
Lease Rate
$36.00 /SF/Yr
Expense Ratio
25.00%
Simulate Cap Rate and NOI
Suggested Prices Based on Cap Rates
Cap Rate 5%
$2,190,100
Cap Rate 7%
$1,564,357
Cap Rate 9%
$1,216,722

Alternative Uses

Best Use
Office B
$1.56M
$1.37M – $1.83M (±1% cap)
NOI $109,505 @ 7.0% cap · market cap 5.76%
Second Best
—
—
no second resolved use
Theoretical Best
Office A
$2.08M
$1.82M – $2.43M (±1% cap)
NOI $145,595 @ 7.0% cap · market cap 7.66%
Zoning and permitted uses should be independently verified with authorities. How Realmo checks its estimates

Property Analytics

Who owns this building? See the owner, sales and loan history
Open Analytics

Current Use

Office buildings

Suggested Use

Top Pick Electrical Service (Bike/Boat/Book/etc) Store Florist Butcher Tanning Salon Garden Center

Score = modeled unmet demand for each use within ~1 mi (higher = bigger opportunity). Zoning and permitted uses should be independently verified with local authorities.

Lease Details

6
Office units
Multi-tenant
Tenancy
Yes
Highway access

Location Intelligence

Trade Area within ½ mile

1,407
Businesses Nearby

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
Check the figures for this property Cap Rate, Value Estimation, Potential NOI and more
View Realmo Analytics

Market

Vacancy Rate% for Office in West region

11% 2019
14.1% 2020
15.5% 2021
17.2% 2022
19.9% 2023
21% 2024
20.8% 2025

Frequently Asked Questions

What type of property is this?
Office building - Two flexible structures offer private entrances, restrooms, and options for multiple occupants or shared office use.
Where is this office building located?
The property is located at 31003 18th Ave S Federal Way, WA.
What is the asking price?
The asking price for this property is $1,900,000.
What are key features of this property?
This property features: Two remodeled office buildings totaling 5,193 square feet; Up to six separate office spaces, each with its own entrance and bathroom; Building One includes 3,617 square feet; Building Two includes 1,576 square feet
(206) 850-9338 Call to check price and availability
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