Charges for development rights (concesión onerosa de derechos) are a regulatory instrument of financing of urban development, introduced in 2011 on a local level and extended nation-wide in 2016. Developers pay charges for development rights in exchange for zoning changes of their properties, or to build at a higher density beyond an established baseline or for public investments in infrastructure, services and urban improvement. Charges for development rights are predominantly used for the construction of eco-efficient buildings in order to guarantee the participation of society in the economic benefits due to urban planning. Eco-efficient projects shall include, for example, the reduction of potable water consumption, green infrastructure or vegetation coverage and urban trees.