A departure from my predominantly Scottish buildings: a set of modules for building terraced houses, common throughout the rest of the UK but rather rarer North of the Border, where although individual units or pairs are found in many small-town streets, tenements have tended to take their place for the majority of high-density housing. The basic unit comes in two roof heights and has extended foundations so that it can be stepped up slopes.
The extension modules are for the rear of the buildings: the lean-to is made from one of the basic terrace units rotated through 90 degrees and with its ground floor 'buried'.