Political participation and sustainability seem to be closely intertwined. In the last few decades it can be shown that the topic of sustainability and ecological interest groups play an important role in citizen engagement, political participation, and democratic innovations at the local level. Using a participatory rhombus model of participatory democracy, different forms of participation and democratic innovations in the representative sphere, in direct democracy, in demonstrative participatory space, and finally in deliberative participatory instruments are important in the decision-making for sustainability policies. Here the paper tries to close the gap in empirical data on the perceptions of citizens and councilors on these participatory instruments. Citizens believe strongly in the importance of elections and referendums, but they extend their political repertoire and start protesting and demanding more deliberative democracy. Councilors positively perceive democratic innovations, and the councilors of the Green Party in particular strongly support new participatory instruments. However, citizens and councilors do not support all instruments in the same way.