Local Government and Community Services Office Building For Sale. Port Center is a well maintained, three-story Class B office building centrally located in Riviera Beach. The Property has been completely updated, including a new roof in 2024, and features an impressive rent roll of municipal government tenants and agencies that service the local community. Overall, Port Center presents as an attractive investment opportunity for a wide range of investors with no deferred maintenance, a strong location, and robust cash flows from long term tenants that are an integral part of the local community.