You can change the furniture anytime you want. Tap the button with the chair on it to see everything you can change, or tap and hold the furniture you want to change for about 1 second to see your options. When you make a change, tap on the green “√” button. Your first furniture is always free. Choosing a different furniture does cost coins, but once you buy a piece of furniture, it is yours forever!
Matchington Mansion Game GUIDE