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Riverside Centre 5100 S Macadam Ave 101,055 SF 92% Leased Office Building Portland, OR 97239 $16,000,000 ($158.33/SF)

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INVESTMENT HIGHLIGHTS

  • Institutionally owned and operated for over two decades
  • High-quality suburban office asset with in-place cash flow offered at an attractive basis
  • Desirable suburban location with excellent accessibility to downtown Portland and major transportation arterials
  • Above market parking ratio +/- 3.2 per 1,000 SF
  • Rare opportunity for medical user to occupy fifth floor with existing lab build out
  • $7.5M of capital invested into the property since 2017

EXECUTIVE SUMMARY

Newmark (NMRK), as an exclusive advisor, is pleased to present the opportunity to acquire the 100% fee simple interest in Riverside Centre (the "Property") - a high-quality multi-tenant suburban office building located in Johns Landing, less than 10 minutes from downtown Portland. Originally built in 1947 and thoughtfully renovated in 2021, the +/- 101,000 square foot building is currently 83% leased and 70% occupied with 3.4 years of WALT.
Prominently located off Macadam Avenue, Riverside Centre provides tenants with excellent connectivity to the greater Portland metro with proximate access to Interstate 5, the Ross Island Bridge, and the Sellwood Bridge. Centrally located in Johns Landing, the surrounding area offers a variety of retail amenities and housing options, with over 4,100 residential units within one mile of the Property and access to executive level housing minutes from Riverside Centre. With an above market parking ratio (3.2 per 1,000 SF), sweeping views of Mount Hood and the Willamette River, and flexible floor plates, Riverside Centre is well-positioned to attract a wide array of tenants seeking high-quality well-located suburban office space.
Institutionally owned and operated for over two decades, ownership has invested approximately $7.5M in capital at the Property since 2017, including a lobby renovation and new conferencing facility in addition to numerous exterior improvements. Riverside Centre provides new ownership with a unique value proposition by implementing a thoughtful business plan to increase the concentration of medical tenancy within the project. With existing wet lab space built out on the fifth floor, investors can deploy a strategic capital plan to reposition the balance of the office space on the fifth floor to medical space, rebranding the asset as a medical adjacent alternative in proximity to OHSU's Marquam Hill and South Waterfront Campuses. Alternatively, Riverside presents medical users with a compelling opportunity to occupy the entirety of the fifth floor, mitigating future operating costs and buying down their basis via existing contractual cash flow.
Riverside Centre offers investors and users the opportunity to acquire a high-quality suburban office asset and reposition it into a medical-focused offering, with flexible occupancy strategies, built-in lab infrastructure, and stable in-place cash flow, all in close proximity to major medical campuses within one of Portland's most sought-after close-in submarkets.

PROPERTY FACTS

Sale Type
Investment or Owner User
Property Type
Office
Building Size
101,055 SF
Building Class
B
Year Built/Renovated
1945/2021
Price
$16,000,000
Price Per SF
$158.33
Percent Leased
92%
Tenancy
Multiple
Building Height
5 Stories
Typical Floor Size
20,211 SF
Slab To Slab
12’
Building FAR
0.66
Lot Size
3.52 AC
Zoning
CM2
Parking
319 Spaces (3.16 Spaces per 1,000 SF Leased)

AMENITIES

  • Banking
  • Conferencing Facility
  • Courtyard
  • Security System
  • Signage

SPACE AVAILABILITY

  • SPACE
  • SIZE
  • SPACE USE
  • CONDITION
  • AVAILABLE
  • 1st Fl-Ste 100
  • 3,048 SF
  • Office
  • Full Build-Out
  • 30 Days
  • 1st Fl-Ste 120
  • 1,625 SF
  • Office
  • Full Build-Out
  • 30 Days
  • 2nd Fl-Ste 220
  • 744 SF
  • Office
  • -
  • Now
  • 2nd Fl-Ste 240
  • 2,354 SF
  • Office
  • Full Build-Out
  • 30 Days
  • 2nd Fl-Ste 250
  • 2,508 SF
  • Office
  • Full Build-Out
  • 30 Days
  • 2nd Fl-Ste 270
  • 1,268 SF
  • Office
  • -
  • Now
  • 5th Fl-Ste 500
  • 5,288 SF
  • Office
  • -
  • Now
  • 5th Fl-Ste 510
  • 930 SF
  • Office
  • -
  • Now
  • 5th Fl-Ste 550
  • 4,770 SF
  • Office
  • -
  • 30 Days
  • 5th Fl-Ste 575
  • 6,981 SF
  • Office
  • -
  • Feb 2026
Space Size Space Use Condition Available
1st Fl-Ste 100 3,048 SF Office Full Build-Out 30 Days
1st Fl-Ste 120 1,625 SF Office Full Build-Out 30 Days
2nd Fl-Ste 220 744 SF Office - Now
2nd Fl-Ste 240 2,354 SF Office Full Build-Out 30 Days
2nd Fl-Ste 250 2,508 SF Office Full Build-Out 30 Days
2nd Fl-Ste 270 1,268 SF Office - Now
5th Fl-Ste 500 5,288 SF Office - Now
5th Fl-Ste 510 930 SF Office - Now
5th Fl-Ste 550 4,770 SF Office - 30 Days
5th Fl-Ste 575 6,981 SF Office - Feb 2026

1st Fl-Ste 100

Size
3,048 SF
Space Use
Office
Condition
Full Build-Out
Available
30 Days

1st Fl-Ste 120

Size
1,625 SF
Space Use
Office
Condition
Full Build-Out
Available
30 Days

2nd Fl-Ste 220

Size
744 SF
Space Use
Office
Condition
-
Available
Now

2nd Fl-Ste 240

Size
2,354 SF
Space Use
Office
Condition
Full Build-Out
Available
30 Days

2nd Fl-Ste 250

Size
2,508 SF
Space Use
Office
Condition
Full Build-Out
Available
30 Days

2nd Fl-Ste 270

Size
1,268 SF
Space Use
Office
Condition
-
Available
Now

5th Fl-Ste 500

Size
5,288 SF
Space Use
Office
Condition
-
Available
Now

5th Fl-Ste 510

Size
930 SF
Space Use
Office
Condition
-
Available
Now

5th Fl-Ste 550

Size
4,770 SF
Space Use
Office
Condition
-
Available
30 Days

5th Fl-Ste 575

Size
6,981 SF
Space Use
Office
Condition
-
Available
Feb 2026

1st Fl-Ste 100

Size 3,048 SF
Space Use Office
Condition Full Build-Out
Available 30 Days

Walk Score®
Very Walkable (75)
Bike Score®
Biker's Paradise (90)
What is a Walk Score®, Transit Score® & Bike Score®?
Walk Score® measures the walkability of any address.
Transit Score® measures access to public transit.
Bike Score® measures bikeability of a location.
What is a Walk Score®
, Transit Score® & Bike Score?
Walk Score® measures the walkability
of any address. Transit Score®
measures access to public transit. Bike Score®
measures bikeability of a location.®

PROPERTY TAXES

PROPERTY TAXES

Parcel Number
R328521
Land Assessment
$0
Improvements Assessment
$0
Total Assessment
$7,531,210
  • Listing ID: 36359896

  • Date on Market: 6/23/2025

  • Last Updated:

  • Address: 5100 S Macadam Ave, Portland, OR 97239

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