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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.

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. 

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Alder Ballroom

A versatile event space in the heart of downtown Portland.

As our largest meeting space, the Alder Room can accommodate up to 60 guests for banquets or events. With arched floor-to-ceiling windows, custom chandeliers and views of the city, this beautiful venue can also be divided into two separate rooms – Alder East and Alder West – adding to its versatility.

Alder Ballroom Inquire now
Meeting room Dimensions Area (SQ FT) Banquet Reception Classroom Theater U-Shape
Alder Ballroom 24' X 53' 1,252 100 120 80 120 48
Alder East 24' X 27' 650 50 60 40 60 24
Alder West 24' X 26' 624 40 60 36 60 24

Park Room

A lovely event space for banquets and large gatherings.

This grand space is bordered by two arched, floor-to-ceiling windows that set off the elegance of this venue. With custom chandeliers and original artwork, the Park Room is a lovely, classic space for events in a variety of configurations, from banquets to year-end gatherings.

Park Room Inquire now
Meeting room Dimensions Area (SQ FT) Banquet Reception Classroom Theater U-Shape
Park Room 21' X 27' 550 40 50 30 50 20

Boardroom

An elegant venue that’s just right for small gatherings.

A floor-to-ceiling window brings light into this cozy, elegant Portland venue. With a full boardroom table and comfortable leather chairs, it’s ideal for board meetings or small brainstorming sessions.

Boardroom Inquire now
Meeting room Dimensions Area (SQ FT) Banquet Reception Classroom Theater U-Shape
Boardroom 19' X 12' 228 - 20 - - -
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