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Property profile & analytics
OFF-MARKET
Estimated value
$153,045,000
Office Spaces
333 1st Ave, Portland, OR 97204-3440
Entity Owned
10-yr Hold
Free & Clear
Property ID
US71-0642708
Property profile
Verified
Property type
Office Spaces
Use group
OFFICE (GENERAL)
Year built
1991
Total area
354,677 SF
Lot
0.79 ac (34,250 SF)
Zoning code
CXD
APN
1N1E34CD 04600
UPID
US71-0642708
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
Current use
Occupant on record · Public records
-
U.S. Army Corps of Engineers, Portland District Government Office
-
Joyful Noise Child Development Center Charitable Organization Social Service Agency
-
schneider kerr law offices Law Firm
-
Social Security Hearing Social Security Office
Value estimations
Realmo proprietary · 4 methods
AI Approach
AI
by Request
CAP Approach
CAP
by Request
Comparable Approach
Comparable
$153.04M
Blend (final)
Blend
$153.05M
Owner & transaction history
Pr Block 300 LLC · 10 yrs held
Pr Block 300 LLC
since 2015
3 recorded transactions
Zoning & alternative use
CXD · Portland, OR
Permitted uses
Permitted uses
Allowed · conditional · prohibited
Top alternative use upside
Restaurant
$121.5M
+18.9%
Auto repair, garage
$108.3M
+6.0%
Medical building
$107.1M
+4.9%
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 Portland submarket · NOI estimate · Typical band, median & reading
Implied cap rate, NOI & submarket benchmark
Cap vs Portland 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
by Request
ML approach
by Request
CAP Approach
CAP Return
Estimation
6%
by Request
6.5%
by Request
7%
by Request
Alternative Use
Use
Estimation
COMMERCIAL (GENERAL)
$102,145,000
Current use
RESTAURANT
$121,465,000
Change: +19% · Conversion: Difficult
AUTO REPAIR, GARAGE
$108,295,000
Change: +6% · Conversion: Difficult
MEDICAL BUILDING
$107,130,000
Change: +5% · Conversion: Easy
RETAIL STORES
$106,480,000
Change: +4% · Conversion: Easy
OFFICE BUILDING
$102,505,000
Change: +0% · Conversion: Easy
APARTMENT HOUSE (5+ UNITS)
$94,300,000
Change: -8% · Conversion: Moderate
Blend value · Realmo final
$153.05M
Range $137.74M – $168.35M · ±10%
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
$432 / 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 2023Property tax & assessments
Tax year 2023
Tax billed
$1,652,961
Tax year 2023
Assessed value
$68,860,630
Assessed 2023
Previous assessed
$66,854,990
+3.0% YoY
Effective rate
2.40%
On assessed value
Land market value
$9,585,070
Improvement market value
$82,381,250
Total market value
$91,966,320
Applied tax rate
889.0000
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 Spaces
Use group
OFFICE (GENERAL)
Status
Off-Market
Year built
1991
Heating
NONE
Stories
10
Total area
354,677 SF
Lot
0.79 ac (34,250 SF)
Zoning code
CXD
APN
1N1E34CD 04600
UPID
US71-0642708
Jurisdiction
MULTNOMAH
Zoning & alternative use
CXD · Portland, OR
Zoning CXD · permitted uses
CXD · Portland, OR
Permitted & conditional uses
Allowed uses · Special-permit conditions · Prohibited uses
Permitted & conditional uses
Allowed · special-permit conditions · prohibited
Portland. Always verify with local authorities before improvements.
Alternative use value scenarios
Repositioning upside vs current use
COMMERCIAL (GENERAL) Current
Est. value
$102.1M
RESTAURANT
Est. value
$121.5M
AUTO REPAIR, GARAGE
Est. value
$108.3M
MEDICAL BUILDING
Est. value
$107.1M
RETAIL STORES
Est. value
$106.5M
OFFICE BUILDING
Est. value
$102.5M
APARTMENT HOUSE (5+ UNITS)
Est. value
$94.3M
COMMERCIAL (GENERAL) Current
RESTAURANT
AUTO REPAIR, GARAGE
MEDICAL BUILDING
RETAIL STORES
OFFICE BUILDING
APARTMENT HOUSE (5+ UNITS)
Alternative use deep dive — conversion cost, permits, timeline
Conversion cost estimate · Permit path & risks · Stabilized NOI per option
Alternative use deep dive
Conversion cost · permit path · stabilized NOI per option
Building & site characteristics
From public records
Year built
1991
Heating
NONE
Stories
10
Lot
0.79 ac
Current owner
From public records · entity-resolved
Pr Block 300 LLC
Entity
Free & Clear · 10 yrs held
Mailing address
308 SW 2ND AVE, PORTLAND, OR 97204-3411
Ownership since
2015
Owner contacts — direct phone, email, and related entities
Decision-maker phone · Verified email · Related entities & filings
Owner contacts
Email · phone · related entities
Sales History
3 recorded events · public records
Date
Price
Buyer
Seller
Deed Type
Mortgage
Jul 31, 2015
$155,252,000
Pr Block 300 LLC
Ngp Duncan Plaza Portland LLC
Warranty Deed
—
Apr 29, 2004
$69,750,000
Ngp Duncan Plaza Portland LLC
Marzer Venture
Grant Deed
$4,150,000 · Artesia Mortgage Capital Corp
—
—
Rubicon Gsa II Duncan Plaza Po
—
Deed Of Trust
related
$60,800,000 · General Elec Cap
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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