diff --git a/users/migrations/0009_user_room.py b/users/migrations/0009_user_room.py
new file mode 100644
index 00000000..e21c4837
--- /dev/null
+++ b/users/migrations/0009_user_room.py
@@ -0,0 +1,22 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('topologie', '0009_auto_20160703_1200'),
+        ('users', '0008_user_registered'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='user',
+            name='room',
+            field=models.ForeignKey(to='topologie.Room', on_delete=django.db.models.deletion.PROTECT, default=1),
+            preserve_default=False,
+        ),
+    ]
diff --git a/users/migrations/0010_auto_20160703_1226.py b/users/migrations/0010_auto_20160703_1226.py
new file mode 100644
index 00000000..9a2d6689
--- /dev/null
+++ b/users/migrations/0010_auto_20160703_1226.py
@@ -0,0 +1,20 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('users', '0009_user_room'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='user',
+            name='room',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.PROTECT, blank=True, to='topologie.Room', null=True),
+        ),
+    ]
diff --git a/users/migrations/0011_auto_20160703_1227.py b/users/migrations/0011_auto_20160703_1227.py
new file mode 100644
index 00000000..12081357
--- /dev/null
+++ b/users/migrations/0011_auto_20160703_1227.py
@@ -0,0 +1,20 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('users', '0010_auto_20160703_1226'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='user',
+            name='room',
+            field=models.ForeignKey(null=True, blank=True, unique=True, on_delete=django.db.models.deletion.PROTECT, to='topologie.Room'),
+        ),
+    ]
diff --git a/users/migrations/0012_auto_20160703_1230.py b/users/migrations/0012_auto_20160703_1230.py
new file mode 100644
index 00000000..98c64d8e
--- /dev/null
+++ b/users/migrations/0012_auto_20160703_1230.py
@@ -0,0 +1,20 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('users', '0011_auto_20160703_1227'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='user',
+            name='room',
+            field=models.OneToOneField(blank=True, on_delete=django.db.models.deletion.PROTECT, to='topologie.Room', null=True),
+        ),
+    ]
diff --git a/users/migrations/__pycache__/0009_user_room.cpython-34.pyc b/users/migrations/__pycache__/0009_user_room.cpython-34.pyc
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diff --git a/users/migrations/__pycache__/0010_auto_20160703_1226.cpython-34.pyc b/users/migrations/__pycache__/0010_auto_20160703_1226.cpython-34.pyc
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diff --git a/users/migrations/__pycache__/0011_auto_20160703_1227.cpython-34.pyc b/users/migrations/__pycache__/0011_auto_20160703_1227.cpython-34.pyc
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diff --git a/users/migrations/__pycache__/0012_auto_20160703_1230.cpython-34.pyc b/users/migrations/__pycache__/0012_auto_20160703_1230.cpython-34.pyc
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diff --git a/users/models.py b/users/models.py
index 4490f3f2..c30e4a68 100644
--- a/users/models.py
+++ b/users/models.py
@@ -6,6 +6,15 @@ from django.utils import timezone
 
 from topologie.models import Room
 
+def remove_user_room(room):
+    """ Déménage de force l'ancien locataire de la chambre """
+    try:
+        user = User.objects.get(room=room)
+    except User.DoesNotExist:
+        return
+    user.room = None
+    user.save()
+
 class User(models.Model):
     STATE_ACTIVE = 0
     STATE_DEACTIVATED = 1
@@ -74,12 +83,19 @@ class UserForm(ModelForm):
         fields = '__all__'
 
 class InfoForm(ModelForm):
+    force = forms.BooleanField(label="Forcer le déménagement ?", initial=False, required=False)
+
     def __init__(self, *args, **kwargs):
         super(InfoForm, self).__init__(*args, **kwargs)
         self.fields['name'].label = 'Nom'
         self.fields['surname'].label = 'Prenom'
         self.fields['school'].label = 'Etablissement'
 
+    def clean_force(self):
+        if self.cleaned_data.get('force', False):
+            remove_user_room(self.cleaned_data.get('room'))
+        return
+
     class Meta:
         model = User
         fields = ['name','surname','pseudo','email', 'school', 'promo', 'room']