Example demonstrating how to add all the individual address elements to the data returned.
add_filter( 'propertyhive_rest_api_property_fields', 'customise_rest_api_fields_returned' );
function customise_rest_api_fields_returned($field_array)
{
$field_array[] = 'address_name_number';
$field_array[] = 'address_street';
$field_array[] = 'address_two';
$field_array[] = 'address_three';
$field_array[] = 'address_four';
$field_array[] = 'address_postcode';
return $field_array;
}