House question (so random)

Hi mamas! My husband and I have a chance to buy a house close to my parents. It’s a brand new build 1400 square feet but here’s the catch NO BASEMENT. I am leery about not having a basement to grow into. There is a detached double garage with a loft that would allow a really cool option to have an office for us. But dang I’m worried one floor with a growing family is going to suck in a few years time. Any families live in a one floor house and find it to be ok? Are we out of our minds hahaha