Affordable 2 room Altbau near Boxi for min 3 room Altbau

Looking to swap my cosy Altbau for something larger. The flat is located near Boxhagener Platz in a quiet side street backhouse (I don‘t hear anything from the streets) with wooden floors, high ceiling and 2 rooms. Ideal for somebody looking to downsize in either size or money :) I‘ve been living in this flat for almost 7 years and am looking for a change, ideally 2,5 rooms+ or a definite upsizing im scale. Altbau only!