DACA individuals can buy a home and get a home loan.

I work for a mortgage company in CA and we have already done home loans for Dreamers. You do need good credit, income and assets just like anyone else. Start building your credit asap. Do your taxes with your SSN and save for the down payment. FHA loan with only 3.5% down is available.

If you started building your credit with your ITIN, you can transfer your credit history to your new SSN.