37 Assembly of pre-fabricated houses; Construction of modular homes; Construction of residential buildings; Construction of residential modular homes, green modular homes, energy efficient homes; Construction project management services; Construction project management services in the field of residential modular homes, green modular homes, energy-efficient homes; General building contractor services; Providing information related to the installation, maintenance and repair of residential modular homes, green modular homes, energy-efficient homes; Residential and building construction consulting