Complex sentence: Due to those restrictions the Navy constructed a small building at one edge of the segregated section that was operated as a business called the "BBQ Pit", and one duplex was relocated to a spot adjacent to the BBQ and operated as a community center.
Split into simpler sentences: Due to those restrictions the Navy constructed a small building at one edge of the segregated section that was operated as a business called the "BBQ Pit". One duplex was also relocated to a spot adjacent to the BBQ and operated as a community center.