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HOLIDAY INN SELECT DIAMOND BAR
21725 E Gateway Center Dr, Diamond Bar, California, 91765
2,804
Sq ft event space
4
Meeting rooms
120
MAX Capacity
176
Guest rooms
HOLIDAY INN SELECT DIAMOND BAR is a premier event destination offering world-class facilities for weddings, corporate events, conferences, galas, and social gatherings. With 2804 sq ft of flexible event space across 4 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
176 rooms available for individual stays and discounted room blocks.
STANDARD ROOM
1 KING BED EXECUTIVE NONSMOKING
1 KING BED NONSMOKING
1 QUEEN BD ACCESSIBLE ROLL IN SHWR NOSMK
Meeting & event space
2804 sq ft across 4 configurable rooms. Tap a room for capacities and setups.
Ballroom
2496
·
52.0 x 48.0 ft
·
10.0 ft ceiling
Max capacity120
Floor area2496
Dimensions52.0 x 48.0 ft
Ceiling height10.0 ft
Configurations4
Capacity by setup
100
Banquet
100
Classroom
40
U-Shape
120
Reception
Gateway 2 & 4
1431
·
53.0 x 27.0 ft
·
10.0 ft ceiling
Max capacity80
Floor area1431
Dimensions53.0 x 27.0 ft
Ceiling height10.0 ft
Configurations4
Capacity by setup
80
Banquet
65
Classroom
35
U-Shape
35
Reception
Gateway 1& 3
1160
·
40.0 x 29.0 ft
·
10.0 ft ceiling
Max capacity70
Floor area1160
Dimensions40.0 x 29.0 ft
Ceiling height10.0 ft
Configurations4
Capacity by setup
70
Banquet
45
Classroom
25
U-Shape
35
Reception
North Gate 101
308
·
22.0 x 14.0 ft
·
9.5 ft ceiling
Max capacity45
Floor area308
Dimensions22.0 x 14.0 ft
Ceiling height9.5 ft
Configurations4
Capacity by setup
45
Banquet
45
Classroom
30
U-Shape
45
Reception
Key amenities
Everything available on-site for your event and guests.
Location & transportation
21725 E Gateway Center Dr, Diamond Bar, California, 91765
