secondary lot number

A secondary lot number is an identification number or string of characters which represents a subdivision of a particular land parcel. It belongs to a larger piece of land, usually identified by a primary lot number, which is owned, sold, or purchased as a unit.

The reference identifies the smaller section within the larger holding. Its meaning depends on that subdivision relationship rather than on a required numeric format.

A primary lot number identifies the larger parcel. The two numbers describe different levels of the land holding rather than interchangeable names for the same extent.