tax_max_value
$tax_query = array( 'relation' => 'AND', array( 'taxonomy' => 'property_area', 'terms' => '10', 'field' => 'slug', ), );
$tax_query = array( 'relation' => 'AND', array( 'taxonomy' => 'property_area', 'terms' => '10', 'field' => 'slug', ), );