When you are on the map, and you click on a city, you have several choices. The one concerned is the houses.
Before buying your first house, you can see all the houses in the city.
But after buying your first house, you only see the house you bought, by default.
If you want to use the filters to display the other houses, you can not go to the sub filters.
I tried with the D-pad, the Left Stick and the Right Stick.
Can not go on the sub filter.
I will try to join a screen.