Ushuaia is clean and minimal real estate theme. This theme is great for a beginner and real estate agent who needs to update their own site, as it is set up with some nice custom widgets. The design is clean and allows you to show your featured properties along with a nice search feature.
If you weren’t aware all wpCasa themes come with different child themes built on the framework. So if you don’t like this theme there are a couple other really nice themes that you can choose from or even switch to. They all come specifically for real estate sites and are all very clean and simple.
WPCasa is a small but solid company that has one framework with a few child themes that work for it. They also have a number of plugins available. They create themes for real estate. If that is the type of site you need this is definitely the place to look.