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Downtown Portland Office Space Rental
For Lease
$28.50 SF/Yr

1618 Southwest 1st Avenue, Portland, OR 97201

Office space in downtown Portland with river and mountain views.

Space SizeContact for details
Days on Market274

Property Features for 1618 Southwest 1st Avenue

General Information

Standard status Active
Property subtype Office
Listing Agency: CBRE | Portland
Listed By: Joe Beehler · License #137614
Source: Cbre
Added: Nov 22, 2025 Changed: Aug 16 Last Checked: Aug 22 at 12:52PM

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

Current Use

Learning.com (Bike/Boat/Book/etc) Store Versa-Steel Inc. Factory West Coast Seafood ... Association Or Organization Cannabis Stocks Financial Advisor HomeStreet Home Loan ... Bank

Suggested Use

Top Pick (Bike/Boat/Book/etc) Store Tanning Salon Pet Grooming Service Buffet Butcher Locksmith

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

NNN (Triple Net)
Lease Type
$4.27 /SF/Yr
CAM

Location Intelligence

Trade Area within ½ mile

6,613
Businesses Nearby

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

Market

Lease Benchmarks for Portland, OR

$21.73 /SF/Yr
Avg Asking Price
$1.71–$40.6 /SF/Yr
Price Range
12,121 SF
Avg Space Size

This space is priced 31% above the average of $21.73 /SF/Yr.

Vacancy Rate% for Office in Portland, OR

10.1% 2019
12.3% 2020
16.1% 2021
18.5% 2022
20.8% 2023
21.7% 2024
24.3% 2025
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
More about this property
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