What does 2.5 residential zoning mean?

2.5 residential zoning typically indicates a classification within a zoning ordinance that allows for residential development at a density of up to 2.5 dwelling units per acre. This zoning designation is often used to manage land use in suburban or rural areas, promoting lower-density housing while still allowing for some residential growth. It may also set specific standards regarding building heights, setbacks, and lot sizes to maintain the character of the neighborhood.