The DowntownDC Business Improvement District (BID) is a private non-profit organization that provides capital improvements, resources and research to help diversify the economy and enhance the Downtown experience for all. This special district, where property owners have agreed to tax themselves to fund services, encompasses a 138-block area of approximately 520 properties from Massachusetts Avenue on the north to Constitution Avenue on the south, and from Louisiana Avenue on the east to 16th Street on the west. As a catalyst, facilitator and thought leader, the DowntownDC BID promotes public/private partnerships to create a remarkable urban environment.