Heldammersingel 20 Heldammersingel 22 Heldammersingel 24 Heldammersingel 38 Heldammersingel 40 Heldammersingel 42 Heldammersingel 44 Heldammersingel 46 Heldammersingel 48 Heldammersingel 52 Heldammersingel 54 Heldammersingel 58