You have not provided anywhere near enough information on which anyone could try and give you a RELEVANT to your situation answer CAllinson19.
So what happens is people then make ASSUMPTIONS which may or may not be correct. If they get the assumptions wrong, guess what that can do the validity of the suggestions?
You need to start with providing info on what you bought the condo for, how much you still owe on it. What do you intend to spend to buy your second home, how much down payment will you put on it and how much interest you will pay on that new mortgage.
As you describe it, the condo rental is not going to earn you any income, so you are hoping for an increase in capital value. Condos may continue to go up in price or they may fall, no one here has a crystal ball.
As Just a Guy suggests, you may have capital stuck in the condo that could be realized and put against the purchase of a new home which would of course mean you would end up paying a lot less interest on the mortgage of that new home. The capital would still be there in the new home and IT might go up as much or more than it would in the condo. Who knows, again no one has a crystal ball that would tell them whether detached house prices are going to increase in value faster than condo values in the next say 10 years.
Then there is the whole other subject which you have not mentioned, of being a landlord. You don't just rent the condo and forget about it. What kind of value do you put on your own time in having to be a landlord? That's a cost that's hard to calculate.