Every Day You Don't Use Your Space, You Lose Money
Every business's goal is to earn income. Otherwise, it is not a business. As the venue owner, you need to look at your assets from various points of view to optimally use your current potentials.
The first perspective, which is definitely your competitors' perspective, is giving rented spaces to event holders. Another perspective is that you have a place at your disposal. Every day you don't use your space and your other current resources, you are losing money. You can count yourself successful if you have somehow utilized all the resources in your venue seven days a week.
Another perspective is to collaborate with others to utilize the space you have and generate income out of it. Find organizations which can work with you outside the event setting. Schools and educational institutions are among such organizations. Negotiate with them and offer them the venue for educational purposes when no event is being held. Educational groups can introduce your team to many people who will collaborate with you in the future.
Another is to establish long-term collaboration with other businesses. Look for a way to attract different groups and businesses so you would be in charge of the venue and they would be in charge of the job. Sometimes tens and hundreds of companies work with you. Doing the footwork and organizing is their job, and providing the place to work is yours.