Kapek has repeatedly spoken out against building on the edges of Tempelhofer Feld, and defended the results of the referendum on the area, which saw 64% of voters support restricting development in the park. She states that thought should be given to preserving green spaces as places of recreation rather than construction. Kapek advocates further developing Tempelhofer Feld as a "Central Park", and has repeatedly suggested that a swimming lake be created in its centre.
