About Steam WhistleSituated across from the CN Tower and Rogers Centre in one of Toronto’s oldest historic landmark buildings, your event will be spectacular with perfect blend of the dynamic energy and rustic elegance. With hand hewn beams, 30 foot ceilings, outdoor patios and an abundance of natural light, your guests will be delighted here at the John Street Roundhouse.You can count on a seamless event experience in any of our 5 stunning event spaces; Locomotive Hall, Pilsner Hall, The Gallery, The Mezzanine and Biergarten Restaurant.Facilities and capacityThe Pilsner Hall and Gallery can accommodate up to 180 guests for an indoor or outdoor wedding ceremony, cocktail reception and plated dinner with a dancefloor. Or up to 450 guests cocktail style. Gorgeous outdoor patio and Bridal Suite included!Our brand new space, The Locomotive Hall can accommodate up to 275 guests for a wedding ceremony, cocktail reception and plated dinner with a dancefloor. Or up to 900 guests cocktail style. This space also comes with a patio with incomparable city views and a Bridal Suite.The Mezzanine is perfect for intimate celebrations such as bridal showers, rehearsal dinners, tea ceremonies, birthdays, sports viewing parties and cocktail receptions. We can accommodate 50 guests cocktail style or 40 guests for a plated dinner.Our Biergärten Restaurant is also available for buyouts for intimate weddings with 50 guests or less.We also do full venue buyouts and can accommodate tenting on the patios.CateringYou are welcome to select any caterer you prefer. You can choose from our Primary Caterer, The Food Dudes or our Preferred Caterer list including; Ace Kosher, 10tation, Daniel et Daniel, Eatertainment, Marigold & Onions, Oliver & Bonacini and Presidential Gourmet.Audio Visual ServicesTo support your Audio Visual requirements, our partner EPiQ Vision will customize a quote specific to your needs and budget to deliver your content seamlessly. Our events team will connect you when you're ready.