A tax against a specific property resulting from a public improvement that benefits that property is known as

An improvement cost refers to the expenses incurred for enhancing or upgrading a property, but it is not a tax mechanism. It does not specifically denote a tax imposed on a property to fund public improvements, which is the essence of a special assessment.

This choice implies a generous act or support for community redevelopment, but it does not accurately describe a tax mechanism. While community redevelopment efforts may involve various forms of funding, the term does not capture the specific nature of taxes levied on properties for improvements that benefit those properties.

The proportional method refers to a valuation approach for determining property taxes based on the proportional value of the property, rather than a specific tax type. This method does not address the unique taxation framework of special assessments, which are directly tied to public improvements that enhance property value.