SKYDB Building database

Tall buildings worldwide, with heights, construction status and the companies involved.

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Panorama of Portland File 523-943-919
structure #905507838building

Robert Duncan Plaza

existing 10 floors 1991

Location of Robert Duncan Plaza

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Floors10
Completion1991
Structural Formhigh-rise building
Main Usagecommercial office
Status existing
Architectural Stylemodern
Address333 SW 1st Avenue
Smart Address345 SW 1st Avenue
Smart Address333 SW 1st Avenue
Smart Address308 SW 2nd Avenue
Smart AddressSW Oak Street
Smart AddressSW Stark Street
CityPortland, OR
CountryUnited States
Source: SKYDB | As of: 2026-10-18

Rating

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