Hybrid buildings, hybrid building systems and methods of constructing hybrid buildings are disclosed. First and second building sections forming part of such buildings are also disclosed. One such hybrid residential building (1600) comprises a first building section (1610) and a second building section (1620). The first building section is an on-site construction at a final location for the building and comprises a lower storey (1611) defining an internal volume (1613) that provides a lower living space (1615) within the building, and an upper storey (1617) defining an internal volume (1619) that provides an upper living space (1621) within the building. The second building section defines an internal volume (1623) and is transportable to the final location in a substantially assembled form. The first and second building sections are connected at the final location to form the building. The second building section defines a circulation space (1649) for the building, access between the upper and lower living spaces of the first building section being provided via the circulation space.