In order to represent Template-built human architecture in the 41st millennium I made a couple of master models of wall tiles.
Variations are based on equal lenghts so the pieces can be used as modules.
They are cast in Plastalin Super, a very sturdy plaster-like stuff.
Simply use square wood strips to connect the walls and add a cardboard roof.
Small additions like generators, vents and pipes customise the look of every piece.
All these items are available in sets.