This building is scaled in 00 gauge and N gauge. The N gauge building comes in one piece with a selection of extras that can be added on including: the current BnB name sign, flower pots, station poster boards, garden canopy, name boards and the garden fence. 
The 00 gauge version comes with the same extras, however due to the size of the building has been split into 6 individual sections. 
For those modelling in TT:120 the N gauge model can be scaled by 125% and those modelling in 3mm can scale the 00 gauge model by 75%.