The list shows all municipal apartments that you can buy.
To the left is a filter with it, you can cut off apartments that suit on you. If the current settings of the filter in your area you can see few real estate property, try to change the filter, change the search box, or consider other types of real estate. Try to search around the "Sharing" or click "of the house" instead of "of the apartment." (Use top menu in the form of strips).
Choose exactly square you can find on the map, then switching back to the list view will show only apartment with a selected area map.