Looking for 3 or 3.5 room in exchange for our 2 Rm. (41m2)

5 mins walk from U Bahn stations ( Siemensdamm and Halemweg) 1 min walk to Kita and Jungfernheide Wald. Rewe and Netto is just few steps as well. This place is great as it is near Bus Stops and Bahn Stations. However, we are needing a bigger place as we are expanding our family.