Contingency for new build

[Ginger Mermer]

I am currently living in and working on a flip simultaneously. I really want to flip more houses, because I enjoy it, but before I do I need to find a place to live myself. It has been a long time dream of mine to build, and I would like to go that route if possible. I don’t think I would qualify for a construction loan without selling my current house first, so I’m wondering if I can sell it contingent on the build being finished? Is that a thing? I can’t find anything on Google about it. Thanks.