The Northeastern Illinois Development Database tracks significant developments across the seven-county region. Established in 1987, the database records projects meeting specific criteria, documenting land consumption, number of housing units, non-residential square footage, and land use types. It includes projects from proposal through completion, providing key data for the Chicago Metropolitan Agency for Planning’s (CMAP) forecasting and planning efforts. The Northeastern Illinois Development Database web map also is a resource for municipalities, planners, and researchers. CMAP currently welcomes updates to the database by local government staff. Municipalities are encouraged to submit proposed, in-progress, or completed developments, as all phases contribute valuable data for the model. By providing updates on developments, local governments help improve regional land use planning and support future infrastructure investments, ensuring development aligns with community priorities. The Northeastern Illinois Development Database web map is best viewed on desktop. Open map in new window ext-link Opens in a new tab Northeastern Illinois Development Database fullwindow OPEN FULL WINDOW Resources How to explore and update the Northeastern Illinois Development Database Data dictionary ext-link Opens in a new tab Frequently asked questions What developments are included in the database? The database tracks developments and redevelopments that meet one or more of the following criteria: Occupy at least 1 acre of land Contain at least 10 housing units Contain at least 10,000 square feet of non-residential space Result in a change in land use The Northeastern Illinois Development Database captures all land uses, including residential, commercial, industrial, institutional, and recreational/open space. It tracks projects from the initial proposal phase through construction to completion, including new construction, expansion, and rehabilitation involving land use changes. What kind of information is available for each development? Each development in the database includes a variety of data points, such as: Development name, developer, and land use type Housing units and non-residential square footage Location details and construction dates Do you want to know more about the data? Fill out our data request form or contact us with your questions.