In Vancouver there are Mistresses who would consider renting out their space, however you need to be prepared to pay 50 $ to 100 $ per hour for the use of their space.
Phone around and ask polietly you might get want you want. They will probably want to know if you need their equipment too or just their furniture. They also might want to stay in the space so they can keep an eye on their stuff.
Ask and you shall recieve.