On the house at Wedellstr. 33-37, Vodafone (and o2) have placed some 3G- and LTE-capable antenna. Vodafone's do 2G as well and are presumably spread over the roof.
the house seen from south (Brieger Str.): everything but the 3-in-1 mast middle to left (o2) should be Vodafone's
north view from Kamenzer Damm
west-facing side of the house with two Vodafone sector antennas