Depends on how much the house is. Generally, the down payment is 30%, and so is the new house. However, in order to attract more customers, a few properties have achieved 20%. The developer requires you to go to a designated bank to lend money, or a small apartment with a better location can also make a low down payment. For a second-hand house, the minimum is generally 30%, which refers to 30% of the appraised value of the house. If the appraised value is lower than your transaction value, then your down payment will be more than 30% of the total house price. Besides, the cost of the second-hand house transaction itself is not in the house price, so try to prepare more cash to arrange things.