1. Development

•      A one-stop agency to facilitate economic development in Bintulu.
•      Undertake land use planning.
•      Undertake development of industrial estates, commercial and residential buildings.
•      Undertake development of infrastructures like roads, drains and sewerage.

2.  Provide municipal type of services.

• BDA are responsible to provide an efficient services especially to keep Bintulu Town clean, landscape beautification, health and Sanitation.

• Municipal Services

           -Vector control & Sanitation
           - Health & Sanitation
           - Landscape Beautification & Intrastructure Maintenance (Road, Sewerage, Building & Drain) Traffic road & light
           - Market & Parking
           - Sport & Recreation And Education
           -Other Functions:
             -Enforcement
             -Licensing Unit
             - Public Complaint
             - Rates Assessment
             - Tumbina, BDA Public Library
             -Polis Bantuan Samalaju