The Koch architecture firm primarily deals with the planning and realization of construction projects, particularly in the field of architecture. The core activities include: construction of new single-family homes (SFH) and multi-family homes (MFH); renovation and reconstruction of existing buildings, including total renovations and elevator installations; expansion and extension of existing buildings, such as balcony renovations and studio expansions; planning and realization of boutique shops and other commercial units; planning and realization of sauna houses and other special buildings. The Koch architecture firm thus offers comprehensive services in the field of architecture and construction planning.