Has anyone ever successfully grew in a crawl space?

The situation is this. Its not 100% my place as I share it with someone else. They said they were cool with me doing just one grow, but originally I had planned on growing 3 plants, and now I'm down to 1 female which was a huge let down.

I have 2 clones coming from that female that I don't want to kill, but to keep it where it is much longer than another month or 2 is risky. We have holidays coming up, football games, company, and that means lingering odors in the house and people walking into my room. I have enough time to harvest this female in 6 weeks, but if I start growing out the clones someone I live with is most likely not going to approve.

The problem is first grows are so much experimental, and now after making so many mistakes, I finally feel like I know what I'm doing. And I wanted to grow those clones during the winter in a crawlspace under the house. I was thinking about just building a box down there (a widddde box cause its only like 3 feet high), keeping it warm with its own lights, and LSTn the clones that grow.

But is growing in crawl spaces during the winter a dumb idea? Is there any reasons I should be looking to avoid it?

Dude, move out. You've got EVERYTHING going against you, theres no point unless u like bubba!!

Not sure what you crawl space is like in terms of dirtiness and pests and such, but sounds like a good plan, can't really think of anything off the top of my head that would be an issue other than nighttime temperatures, as in when the lights go off, but you could probably sort out a small heating unit of sorts fairly easily i'd have thought.

Definitely a good idea of not trying it in the house while there will be people passing to and fro.

Ok yeh that was my main concern too and I was thinking the space heater I have has a thermostat on it and should work perfectly.
As far as pests/insects I'm going to wind up encasing it in the corner so its completely closed off. There will be a vent in the front with a screen just so nothing can crawl in when the vents off. But for the most part all I remember ever seeing down there is crickets really.

How cold is it going to get down there? How damp?

Put your light cycles on at night, electricity is cheaper and it will help keep them warm. I would say it is definitely doable - especially in winter if the temps aren't too ridiculously low. Humidity stays lower in the winter so that shouldn't be an issue.

If the box is too cold just add some insulation