The municipal property management pursues various renewal strategies from repair to replacement. In 25 major conversion and replacement construction projects, it will realize an increase of over 400 4- to 6-room apartments by 2009 (at the expense of around 760 small apartments with 1 to 3 rooms).

The apartment type of 5- and 6-room apartments, which was previously virtually non-existent in urban residential properties, will be raised to almost 250 apartments. The modernized and the replacement new apartments offer twice as much space as the old apartments.