Host an unforgettable event that also benefits the environment

We’ve partnered with Friends of Trees to present groups with the opportunity to make a lasting impact on Portland’s urban canopy and care for the natural beauty of our host city.

For every $2,000 spent in guestroom and food or beverage revenue, Dossier will donate one native tree to Friends of Trees to be planted in the Portland region as part of our sustainable meetings initiative created in collaboration with Friends of Trees.

Whether you’re looking for inspiration, motivation or a place to brainstorm your next power play, our meeting rooms serve as the ideal venue for a whole variety of events. From intimate team workshops to gatherings of more than 100 guests in our approachable and warm private spaces, Dossier’s Portland event and meeting spaces for rent feature original artwork, custom chandeliers and arched floor-to-ceiling windows that allow natural light to flood into the rooms with views from our downtown Portland location.

Our staff can customize each event to suit your unique needs in our state-of-the-art rooms. We’re happy to provide a full complement of audio-visual capabilities, as well as both wired and wireless Internet. We pride ourselves on taking care of all the small details that make an event matter.

See the Venues


Meeting RoomDimensionsArea (SQ. FT)Max Ceiling HeightTheatreClassroomBanquet ConferenceU-ShapeHollow SQReceptionFloor
Alder Ballroom24' X 53'1,25212'120801005648601202nd
Alder East24' X 27'65012'604050282430602nd
Alder West24' X 26'62412'603640282460602nd
Boardroom19' X 12'22812'---10-20202nd
Park Room21' X 27'55012'503040222030502nd

Ready to take the first step?

Our team is ready to help you plan your event. Please email our sales team to request a proposal to get information on pricing and availability.