diff --git a/includes/utilities.php b/includes/utilities.php
index eeb1ffc..95c99b7 100644
--- a/includes/utilities.php
+++ b/includes/utilities.php
@@ -1,5 +1,66 @@
 <?php
 
+function get_the_parent_terms($taxonomy, $postID = null)
+{
+	if (!$postID || !$taxonomy || !taxonomy_exists($taxonomy)) return null;
+
+	$terms =  get_the_terms($postID, $taxonomy);
+	if (!$terms || empty($terms)) return [];
+
+	$parentTerms = array_filter($terms, function ($term) {
+		return $term->parent == 0;
+	});
+	return $parentTerms;
+}
+
+function get_the_children_terms($taxonomy, $postID)
+{
+	if (!$postID || !$taxonomy || !taxonomy_exists($taxonomy)) return null;
+
+	$terms =  get_the_terms($postID, $taxonomy);
+	if (!$terms || empty($terms)) return [];
+
+	$childrenTerms = array_filter($terms, function ($term) {
+		return $term->parent !== 0;
+	});
+	return $childrenTerms;
+}
+
+function get_children_terms_from_specific_parent($taxonomy, $postID, $parentTerm)
+{
+	if (!$postID || !$taxonomy || !taxonomy_exists($taxonomy)) return null;
+
+	$childrenTerms = get_the_children_terms($taxonomy, $postID);
+	$filteredChildrenTerms = array_filter($childrenTerms, function ($term) use ($parentTerm) {
+		return $term->parent === $parentTerm->term_id;
+	});
+	return $filteredChildrenTerms;
+}
+
+function get_the_terms_organised_by_parent($taxonomy, $postID = null)
+{
+	if (!$postID) return;
+
+	$terms = get_the_terms($postID, $taxonomy);
+
+	$sortedTermsByParent = [];
+	if (!$terms) return $sortedTermsByParent;
+
+	$parentTerms = get_the_parent_terms($taxonomy, $postID);
+
+	foreach ($parentTerms as $parentTerm) {
+		$sortedTermsByParent[] = $parentTerm;
+
+		$childrenTerms = get_children_terms_from_specific_parent($taxonomy, $postID, $parentTerm);
+
+		foreach ($childrenTerms as $childTerm) {
+			$sortedTermsByParent[] = $childTerm;
+		}
+	}
+
+	return $sortedTermsByParent;
+}
+
 function getAllBatimentsTermsByParents()
 {
 	// Récupérer tous les termes de la taxonomie 'elementsbatiments' avec une hiérarchie