PNNL - Discovery Hall (3400)

Vendor type

Venues

Address

650 Horn Rapids Road, Richland, WA 99354

Brand

Pacific Northwest National Laboratory

Data checked

October 28, 2026 (OpenStreetMap)

Before You Book

Couples usually book wedding and event venues 10–14 months ahead. Ask:

• Is our date available, and how long can you hold it before a deposit?
• What is the total cost for our guest count, including service charges, taxes and gratuity?
• What is the maximum capacity for a seated dinner, and with a dance floor?
• How many hours are included, and what does each extra hour cost?
• Do we have to use your caterer, bar or vendor list? Is there a fee for outside vendors?

All 12 questions to ask →

Tips for Booking Wedding and Event Venues

• Visit at the same time of day as your wedding to see the light.
• Ask for the total "all-in" price; service charges of 18–24% plus tax are common and not always shown up front.
• Friday, Sunday and off-season dates are often cheaper.

Getting several quotes? Line them up in the quote comparison tool and check the contract red flags before you pay a deposit.