Crowdfunding has helped people with all sorts of needs, whether it be for medical reasons or to fund some other passion.
So yes, you can use crowdfunding to buy a house.
The key is to have enough money saved up before you start -- the last thing you want is to run out of cash mid-house buying process!
Talk with your friends and family about how much they want in return for their help, but be careful not to ask too much! Many crowdfunding websites won't allow campaigns with expectations that are too high or that are unrealistic because of size/need.
That being said, if there's a specific reason why this house is so special or important to you AND all the relevant ducks are in rows then just go for it!