In real estate, zoning codes indicate land use and planning. Codes often consist of a letter and numbers that potentially indicate the level of use, square footage or acreage.
Residential, industrial and commercial are three common types of zoning codes. Depending on the residential area, its corresponding zone codes possibly indicate such things as the types of pets allowed within a particular area, whether mobile homes are permitted, whether in-home businesses are allowed, and the hours and days that an in-home businesses can operate.
Real estate developers and prospective in-home business owners interpret zoning codes as the legal iteration of how to plan the use of land and how to use land with respect to zoning regulations and restrictions. Historic zoning codes indicate areas with homes and buildings that are over 50 years old.