germany-hanover: electrical installation work./ kwa-z02 social and office building ii kwa / 1. ba./ for its headquarters at karl-wiechert-allee 60 c, 30625 hanover, the waste management region of hanover (aha) is planning to construct a new social and office building (abbreviation: kwa-z02) on its own premises. the cubature envisages a 4-storey building. the realization will take place in two construction phases, which will be completed one after the other. the 1st ba will be handed over for use before the 2nd construction phase begins. the subject of this call for applications is the 1st ba. size of the construction phase: 1st ba: approx. 5,265 m2