Dossier
750 SW Alder Street, Portland, OR, 97205
2,030
Sq ft event space
3
Meeting rooms
125
MAX Capacity
119
Guest rooms
Dossier is a premier event destination offering world-class facilities for weddings, corporate events, conferences, galas, and social gatherings. With 2030 sq ft of flexible event space across 3 configurable rooms, we bring your vision to life with an experienced in-house events team.
Our dedicated coordinators, award-winning catering team, and state-of-the-art audio-visual capabilities ensure every detail is flawless — from the first site visit to the final dance.
Guest rooms
119 rooms available for individual stays and discounted room blocks.
3. Accessible King Roll-In Shower
Meeting & event space
2030 sq ft across 3 configurable rooms. Tap a room for capacities and setups.
Alder Ballroom
1252
·
53.0 x 24.0 ft
·
12.0 ft ceiling
Max capacity125
Floor area1252
Dimensions53.0 x 24.0 ft
Ceiling height12.0 ft
Configurations4
Capacity by setup
100
Banquet
80
Classroom
50
U-Shape
125
Reception
Park Room
550
·
27.0 x 21.0 ft
·
12.0 ft ceiling
Max capacity40
Floor area550
Dimensions27.0 x 21.0 ft
Ceiling height12.0 ft
Configurations4
Capacity by setup
40
Banquet
30
Classroom
20
U-Shape
40
Reception
Boardroom
228
·
19.0 x 12.0 ft
·
12.0 ft ceiling
Max capacity10
Floor area228
Dimensions19.0 x 12.0 ft
Ceiling height12.0 ft
Configurations2
Capacity by setup
10
Banquet
10
Classroom
Key amenities
Everything available on-site for your event and guests.
Location & transportation
750 SW Alder Street, Portland, OR, 97205
