Transferable development rights (TDR) is a method by which developers can purchase the development rights of certain parcels within a designated "sending district" and transfer the rights to another "receiving district" to increase the density of their new development. The underlying legal concept of a transfer of development rights programme is the notion that all land has a bundle of property rights.[1] It is used for controlling land use to complement land-use planning and zoning for more effective urban growth management and land conservation.