The reaction of lanthanide nitrate with m-BDTH2 (1,3-benzeneditetrazol-5-yl) leads to a three dimensional (3D) hydrogen bonded framework formulated as {[Ln(H2O)8(m-BDTH)](m-BDT)·12(H2O)} (Ln: Ce,Nd). The topological description of the supramolecular architectures reveals a new binodal (4,7) net with a Schäfli symbol of (3.42.53)(32.42.54.65.72). A self-assembled T4(2)6(2) water tape is included and has been analyzed in comparison with known examples.