Mason Ehrman Annex

The Mason Ehrman Annex, a 2-story historic warehouse structure built in 1940 and renovated in 2017, has been transformed into a creative masterpiece, with modern creative aesthetics and quality that makes it an ideal location for a variety of tenant types.

Contact: assetmanagement@prosperportland.us

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234 NW Fifth Ave

By the Numbers

  • SF of rentable office space

    20,000

  • Floors

    2

  • LEED Certification

    Gold

  • Renovation completed

    2017

Leasing Opportunities

The space offers shower facilities with lockers and secured bike parking, complemented by abundant natural light throughout. Onsite security and full seismic upgrades ensure comfort and safety, while access to a rooftop deck provides an appealing outdoor amenity. With excellent connectivity to TriMet bus, lightrail, and streetcar lines, the property is well situated for commuters. Designed for versatility, it functions seamlessly as creative office or flex space.

Contact: assetmanagement@prosperportland.us

Contact us about this property

Mason Ehrman Annex interior

Mason Ehrman Annex

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