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Property profile & analytics
FOR SALE
Office buildings
21400 International Blvd Seatac, WA 98198
Individually Owned
6-yr Hold
~
Est. High Equity
Property ID
US90-1365947
For Sale
1 / 2
$2,235,000
21400 International Blvd, Seatac, WA 98198
View Listing →
Property profile
Verified
Property type
Office buildings
Use group
OFFICE BUILDING
Year built
1984
Construction
MASONRY/CONCRETE MASONRY UNITS (CMUS)
Total area
16,573 SF
Lot
0.76 ac (33,266 SF)
Zoning code
UH-900
APN
092204-9389
UPID
US90-1365947
Cap rate & NOI
Priority signal for investors
Implied cap rate, NOI & suggested price
Cap rate vs submarket · NOI estimate · 3 price anchors
Implied cap rate, NOI & suggested price
Cap vs submarket · NOI estimate · 3 price anchors
Value estimations
Realmo proprietary · 4 methods
AI Approach
AI
$2.29M
CAP Approach
CAP
by Request
Comparable Approach
Comparable
$1.69M
Blend (final)
Blend
$2.24M
Owner & transaction history
Boilermakers Local 104 Bldg As · 6 yrs held
Boilermakers Local 104 Bldg As
since 2020
Last sale
$2.2M
5 recorded transactions
Zoning & alternative use
UH-900 · Seatac, WA
Permitted uses
Permitted uses
Allowed · conditional · prohibited
Cap rate
Implied · in-place · derived from last sale + estimated NOI
Implied Cap rate
#1
Implied · in-place · NOI ÷ last sale
In-place · derived from last sale + estimated NOI
Cap rate, NOI & submarket benchmark
Implied cap rate vs Seatac submarket · NOI estimate · Typical band, median & reading
Implied cap rate, NOI & submarket benchmark
Cap vs Seatac submarket · NOI estimate · typical band, median & reading
Refine your cap rate
8-question underwriting flow
1.
Property current status — Going-In vs Stabilized
2.
Price for denominator — asking / offer / market
3.
Leasing status & lease structure (NNN / Gross)
4.
Tenant risk profile & vacancy assumption
5.
Upload T12 / rent roll / OM (optional)
Refine in 60 seconds, get exact suggested price
T12 upload · Submarket benchmarks · Sensitivity grid
Suggested price · 3 cap rate anchors
Income approach @ 5% / 7% / 9% — aggressive / typical / conservative
Suggested price at 5% / 7% / 9% cap
Aggressive / typical / conservative · Implied $/SF per anchor · Sensitivity grid
Suggested price at 5% / 7% / 9% cap
Aggressive / typical / conservative · implied $/SF · sensitivity
Value
AI, CAP & Alternative Use estimations · Realmo proprietary blendValue Estimations
Based on Realmo’s proprietary methodology
AI Approach
Method
Estimation
Statistic approach
$2,225,000
ML approach
$2,290,000
CAP Approach
CAP Return
Estimation
6%
by Request
6.5%
by Request
7%
by Request
Blend value · Realmo final
$2.24M
Range $2.01M – $2.46M · ±10% · vs last sale $2.21M (Jan 21 2020)
Last sale anchor
$2.21M
Jan 21 2020
Realmo estimate · informational only.
These numbers are calculated by our models from public records and may not reflect actual market value.
Not an appraisal.
Verify with a licensed appraiser before transacting. Realmo accepts no liability for divergence from real-world outcomes.
View the full estimation — every method, every assumption
Confidence drivers & risk notes · Custom comparable set · Free for first 3 / day
Full estimation methodology
Every method · every assumption · confidence drivers
Price per SF
Sale + rent benchmarks
Subject property
$135 / SF
Submarket sale & rent benchmarks
Median sale $/SF · Asking & closed rent · Submarket vacancy
Submarket sale & rent benchmarks
Median sale $/SF · asking & closed rent · submarket vacancy
Property tax & assessments
Tax year 2022Property tax & assessments
Tax year 2022
Tax billed
$25,281
Tax year 2022
Assessed value
$2,298,700
Assessed 2022
Previous assessed
$2,298,700
+0.0% YoY
Effective rate
1.10%
On assessed value
Assessed land
$831,600
Assessed improvement
$1,467,100
Land market value
$831,600
Improvement market value
$1,467,100
Total market value
$2,298,700
Applied tax rate
2,231.0000
Comparables
6 recent transactions · within 1.5 miComparable in this city
6 recent transactions
Comparable in this City
Similar Nearby for Sale
Similar Nearby for Lease
Recent comparable sales
Sale price & price/SF · Sale date & distance · Adjustments & confidence
Recent comparable sales
Sale price & $/SF · sale date & distance · adjustments
Property description
Physical attributes from public recordsBuilding & lot
Public records
Property type
Office buildings
Use group
OFFICE BUILDING
Status
For Sale
Year built
1984
Construction
MASONRY/CONCRETE MASONRY UNITS (CMUS)
Heating
HEAT PUMP
Stories
3
Total area
16,573 SF
Lot
0.76 ac (33,266 SF)
Zoning code
UH-900
APN
092204-9389
UPID
US90-1365947
Jurisdiction
KING
Metro division
SEATTLE-BELLEVUE-EVERETT, WA METROPOLITAN DIVISION
Zoning & alternative use
UH-900 · Seatac, WA
Zoning UH-900 · permitted uses
UH-900 · Seatac, WA
Permitted & conditional uses
Allowed uses · Special-permit conditions · Prohibited uses
Permitted & conditional uses
Allowed · special-permit conditions · prohibited
Seatac. Always verify with local authorities before improvements.
Building & site characteristics
From public records
Year built
1984
Construction
MASONRY/CONCRETE MASONRY UNITS (CMUS)
Heating
HEAT PUMP
Stories
3
Lot
0.76 ac
Current owner
From public records · entity-resolved
Boilermakers Local 104 Bldg As
Individual
Mailing address
21400 INTERNATIONAL BLVD, SEATAC, WA 98198-6086
Mailing matches property
Yes
Owner-occupied
Yes
Ownership since
2020
Owner contacts — direct phone, email, and related entities
Decision-maker phone · Verified email · Related entities & filings
Owner contacts
Email · phone · related entities
Sales History
5 recorded events · public records
Date
Price
Buyer
Seller
Deed Type
Mortgage
Jan 21, 2020
$2,210,000
Boilermakers Local 104 Bldg As
21400 Office LLC
Warranty Deed
—
Feb 27, 2015
$1,150,000
21400 Office LLC
21400 Building LLC
Warranty Deed
$920,000 · Keybank USA
Dec 7, 2012
$1,700,000
21400 Building LLC
Williams Kenneth A
Warranty Deed
$850,000 · Union Bank
Sep 3, 2004
—
City Of Seatac
Williams,kenneth A
Warranty Deed
related
—
—
—
21400 Building LLC
—
Deed Of Trust
related
$850,000 · Union Bank
Coming soon
Costs & Benchmarks
Operating expenses, capex projections, utility benchmarks, and submarket comparables — all in one view.
Coming soon
Risks
Flood, climate, environmental, title, and tenant-concentration risk — surfaced with mitigations and source citations.
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“Is 15.6% cap rate sustainable?” · “Best tenant mix for BU1?” · “What’s the redev upside?”
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