If Bitcoin goes up very high should i buy a house?

Ive been thinking if it went into very high figures i could cash out 80-90% of bitcoin and buy a house outright with no mortgage.  Is that even a good idea though? - basically 80% of networth in a house hmmm.  On the other hand i dont want to have a mortgage and im fed up with renting due to landlords, letting agents and lack of control.