Downtown Portland Office Space
For Lease
$28.50 SF/Yr
1618 Southwest 1st Avenue, Portland, OR 97201
Office space in downtown Portland with river and mountain views.
Space Size738 SF - 10,405 SF
Days on Market316
Property Features for 1618 Southwest 1st Avenue
General Information
Standard status
Active
Size
738 SF - 10,405 SF
Property subtype
Office
Spaces For Lease
at 1618 Southwest 1st Avenue Contact usSuite 200 Available
Size
1,887 SF
Suite 215 Available
Size
5,362 SF
Suite 220 Available
Size
1,944 SF
Suite 300 Available
Size
3,806 SF
Type
Office
Suite 305 Available
Size
7,066 SF
Type
Office
Suite 319 Available
Size
738 SF
Type
Office
Suite 403 Available
Size
1,859 SF
Suite 405 Available
Size
1,059 SF
Suite 450 Available
Size
9,698 SF
Suite 500 Available
Size
10,405 SF
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Listing Agency:
CBRE | Portland
Listed By:
Joe Beehler · License #200407253
(503) 221-4818
Source:
Cbre
Added: Nov 22, 2025
Changed: Oct 3
Last Checked: Oct 4 at 9:00AM
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 CBRE | Portland
Investment Insights
Based on property information with market context.
Riviera Plaza offers office spaces within a setting that combines business and leisure. The property features garden settings and is located near shops, services, restaurants, and seasonal venues. It provides views of the Willamette River and Mt. Hood. Situated in downtown Portland, the location allows for work, recreation, and social interaction. The building features mid-century modern architecture and mature landscaping. Transportation options include easy access to freeways, adjacency to the MAX Orange Line, and proximity to the Portland Streetcar. Parking is available at a ratio of 2.00 spaces per 1,000 square feet. The property offers a total size of 43867 square feet.
Key Highlights
- Great views of the Willamette River and downtown Portland
- Located in the heart of downtown Portland near shops, services, restaurants and seasonal venues
- Adjacent to MAX Orange Line and Portland Streetcar
Property Analytics
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Current Use
Lease Details
NNN (Triple Net)
Lease Type
$4.27 /SF/Yr
CAM
Location Intelligence
Trade Area within ½ mile
6,613
Businesses Nearby
Explore this area
Business Placement
Demographics for 97201, OR
17,352
Population
10,748
Households
1.6
Avg Household Size
34
Median Age
67%
College-Educated
95%
High-School Grad
1.9 sq mi
ZIP Area
9,133
Density / Sq Mi
$67,074
Median Household Income
$48,101
Median Earnings
$1,565
Median Rent
$648,400
Median Home Value
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Cap Rate, Value Estimation, Potential NOI and more
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Market
Lease Benchmarks for Portland, OR
$22.25 /SF/Yr
Avg Asking Price
$1.71–$40.6 /SF/Yr
Price Range
12,626 SF
Avg Space Size
This space is priced 28% above the average of $22.25 /SF/Yr.
Vacancy Rate% for Office in Portland, OR
Questions? Ask Rey
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Frequently Asked Questions
What type of property is this?
Office units - Office space in downtown Portland with river and mountain views.
Where is this office units located?
The property is located at 1618 Southwest 1st Avenue Portland, OR.
What is the lease rate?
The lease rate is $28.50 SF/Yr.
What are key features of this property?
This property features: Great views of the Willamette River and downtown Portland; Located in the heart of downtown Portland near shops, services, restaurants and seasonal venues; Adjacent to MAX Orange Line and Portland Streetcar
