بسم الله الرحمن الرحيم
In the above mentioned case, if your wife contributed to buy the house as a favour not as a partnership then in this case the wife would not get anything in the house. It shall be considered a favour and help from the wife, and you would be the sole owner of the house. However, if you want to return her money then there is no harm in it.
However, if the case is otherwise, then you should write the detail and submit the query again.
Allah knows Best!
Darul Uloom Deoband