Treasury on the Plaza isn't just another venue on our list — it's one of our home venues. Located in the heart of historic downtown St. Augustine, this beautifully restored 1920s bank building offers a combination of old-world charm and modern elegance that few venues can match. The soaring ceilings, original vault doors, and stunning architecture create an atmosphere that deserves entertainment to match. That's where we come in. As a preferred vendor at Treasury, we've learned exactly how sound travels through the space, where to position speakers for optimal coverage, and how to work seamlessly with their exceptional staff. When you book COS Celebrations for your Treasury wedding, you're getting a team that knows this venue inside and out.
Real Treasury Weddings
Here's a look at some of the weddings we've had the privilege of being part of at Treasury on the Plaza:
Why Treasury Couples Choose COS
We Know the Space
Treasury's unique architecture means sound behaves differently than most venues. We've dialed in the perfect setup for crystal-clear audio throughout the entire space.
Staff Relationships
We work hand-in-hand with Treasury's coordination team. That means smoother load-ins, better timeline execution, and one less thing for you to worry about.
DJ + Live Saxophone
Imagine your first dance with live saxophone echoing through those historic bank ceilings. It's a Treasury signature moment that guests talk about for years.
Lighting That Transforms
Treasury's architecture is stunning on its own — but with strategic uplighting and custom monograms, we help you make it uniquely yours.