# Placekey Types

Additional Placekey types can be returned with the optional “fields” parameter. See the Example Queries section of this documentation for details on how to return these additional placekey types.

The additional Placekey types are `address_placekey` and `building_placekey`. 

These provide more granular information about a place, address, and building. For example let's consider a single-family home, apartment, and a POI with a suite number. For the single-family home all three placekeys (`placekey`, `address_placekey`, and `building_placekey`) would be the same. The apartment would have the same Placekey and `address_placekey` but a different `building_placekey`. Finally, for the POI with a suite number, all three Placekey types would be different.