Who we are. Established in 1993, Mosaic Properties and Homes is a well-established development and construction company located in Grand Rapids. We build towns, resort communities and single-family homes in the Grand Rapids (Headquarters) area and along the Lakeshore from Holland to New Buffalo. What we are seeking. Project Manager that can manage the Construction for condominiums, townhomes and/or single family on the Lakeshore. (Holland to New ...