If you've been living in your family home long after the kids have left, chances are you haven't checked what it could be worth recently – meaning that you may be among the 45% of who people underestimate the value of their home, according to research from Zoopla. You can find out what yours could be worth (and decide whether it’s time to sell) using Zoopla’s new My Home experience. Select your address and Zoopla’s industry-leading algorithm will give you an instant online estimate. You can also check your home’s sales history, track prices for other properties in your chosen area and find agents to help streamline the process. Could it be time for you to downsize?