diff --git a/Building/Building.c b/Building/Building.c
index c7b0b9b..d57756e 100644
--- a/Building/Building.c
+++ b/Building/Building.c
@@ -2,3 +2,35 @@
 // Created by Antoine Bartuccio on 05/06/2018.
 //
 #include "Building.h"
+
+GETTER(Building, Elevator **, elevators)
+
+void _free__Building(THIS(Building)){
+	int i = 0;
+	DELETE(this->residents);
+	DELETE(this->box);
+	for (i=0; i<ELEVATOR_NB; i++)
+		DELETE(this->elevators[i]);
+	free(this->elevators);
+
+	free(this);
+}
+
+Building *_init_Building(){
+	Building * new_building = malloc_or_die(sizeof(Building));
+	int i;
+
+	new_building->floors = FLOORS;
+	new_building->elevators = malloc_or_die(sizeof(Elevator*) * ELEVATOR_NB);
+	new_building->residents = NEW(List);
+	new_building->box = NEW(CommunicationBox);
+	for (i=0; i<ELEVATOR_NB; i++)
+		new_building->elevators[i] = NEW(Elevator);
+
+
+	LINK_ALL(Building, new_building,
+			 get_elevators
+	)
+
+	return new_building;
+}
\ No newline at end of file
diff --git a/Building/Building.h b/Building/Building.h
index f0af2a6..6f34488 100644
--- a/Building/Building.h
+++ b/Building/Building.h
@@ -6,6 +6,7 @@
 #define LO41_BUILDING_H
 
 #define ELEVATOR_NB 3
+#define FLOORS 10
 
 #include "../Objects.h"
 #include "../List/List.h"
@@ -16,8 +17,13 @@ typedef struct o_Building {
 	int floors;
 	List * residents;
 	CommunicationBox * box;
-	Elevator elevators[ELEVATOR_NB];
+	Elevator ** elevators;
+
+	SYNCHRONIZE Elevator ** (*get_elevators)(_THIS(Building));
+
+	DESTRUCTOR(Building);
 } Building;
 
+Building *_init_Building();
 
 #endif //LO41_BUILDING_H
diff --git a/CommunicationBox/CommunicationBox.c b/CommunicationBox/CommunicationBox.c
index 1fc7b63..e712b2f 100644
--- a/CommunicationBox/CommunicationBox.c
+++ b/CommunicationBox/CommunicationBox.c
@@ -3,3 +3,15 @@
 //
 
 #include "CommunicationBox.h"
+
+void _free__CommunicationBox(THIS(CommunicationBox)){
+	free(this);
+}
+
+CommunicationBox *_init_CommunicationBox(){
+	CommunicationBox * new_box = malloc_or_die(sizeof(CommunicationBox));
+
+	LINK(CommunicationBox, new_box, _free_);
+
+	return new_box;
+}
\ No newline at end of file
diff --git a/CommunicationBox/CommunicationBox.h b/CommunicationBox/CommunicationBox.h
index ed572b9..dbc378b 100644
--- a/CommunicationBox/CommunicationBox.h
+++ b/CommunicationBox/CommunicationBox.h
@@ -9,6 +9,9 @@
 
 typedef struct o_CommunicationBox {
 
+	DESTRUCTOR(CommunicationBox);
 } CommunicationBox;
 
+CommunicationBox *_init_CommunicationBox();
+
 #endif //LO41_COMMUNICATIONBOX_H
diff --git a/Elevator/Elevator.c b/Elevator/Elevator.c
index c7d1ce5..50ab7d5 100644
--- a/Elevator/Elevator.c
+++ b/Elevator/Elevator.c
@@ -3,3 +3,15 @@
 //
 
 #include "Elevator.h"
+
+void _free__Elevator(THIS(Elevator)){
+	free(this);
+}
+
+Elevator *_init_Elevator(){
+	Elevator * new_elevator = malloc_or_die(sizeof(Elevator));
+
+	LINK(Elevator, new_elevator, _free_);
+
+	return new_elevator;
+}
\ No newline at end of file
diff --git a/Elevator/Elevator.h b/Elevator/Elevator.h
index 84f11d4..c7b51f8 100644
--- a/Elevator/Elevator.h
+++ b/Elevator/Elevator.h
@@ -9,6 +9,9 @@
 
 typedef struct o_Elevator {
 
+	DESTRUCTOR(Elevator);
 } Elevator;
 
+Elevator *_init_Elevator();
+
 #endif //LO41_ELEVATOR_H
diff --git a/main.c b/main.c
index 861e44b..5d322aa 100644
--- a/main.c
+++ b/main.c
@@ -1,6 +1,7 @@
 #include <stdio.h>
 #include "Objects.h"
 #include "List/List.h"
+#include "Building/Building.h"
 
 int main() {
 	List *l = NEW(List);
@@ -22,6 +23,10 @@ int main() {
 	printf("La taille est de %d\n", l->get_size(l));
 	DELETE(l);
 
+	Building *main_building = NEW(Building);
+	printf("Il y a %d étages dans l'immeuble\n", main_building->floors);
+	DELETE(main_building);
+
 	printf("Hello, World!\n");
 	return 0;
 }
\ No newline at end of file