Depending on your connection with the Common Interest Development industry (homeowner, builder, professional, etc), use these maps to navigate through the data collected regarding your interest and categorized by location. Although we view the industry from a state and national perspective for research purposes, our constituents are homeowners, builders, investors, and CID professionals, so we provide the relevant data and accommodate the interactions, research, and transactions between owners, investors, and professionals that occur locally. Some businesses offer services to multiple states, and others serve a single community or zip code. Homeowners or investors are interested in specific communities for various reasons.