Pulling information from a websites database

I have an idea for an app. There's a property website, where you enter an area code and a date and it will give you all the properties sold in that area for the specified date. I want my android app to push out information when a property is sold in the specified area. Familiar with native android development. Just wondering what I need to start looking at to retrieve the information from the websites database. I'm familiar with native android development and java.