diff --git a/src/main/java/cat/udl/eps/softarch/demo/domain/Location.java b/src/main/java/cat/udl/eps/softarch/demo/domain/Location.java
index 4623fc2..d515f78 100644
--- a/src/main/java/cat/udl/eps/softarch/demo/domain/Location.java
+++ b/src/main/java/cat/udl/eps/softarch/demo/domain/Location.java
@@ -12,6 +12,10 @@
 @Entity
 @EqualsAndHashCode(callSuper = false)
 public class Location {
+    @OneToOne
+    @NotNull
+    @JsonIdentityReference(alwaysAsId = true)
+    private Shelter shelter;
 
     @Id
     @GeneratedValue(strategy = GenerationType.AUTO)
diff --git a/src/main/java/cat/udl/eps/softarch/demo/repository/LocationRepository.java b/src/main/java/cat/udl/eps/softarch/demo/repository/LocationRepository.java
new file mode 100644
index 0000000..ea42215
--- /dev/null
+++ b/src/main/java/cat/udl/eps/softarch/demo/repository/LocationRepository.java
@@ -0,0 +1,11 @@
+package cat.udl.eps.softarch.demo.repository;
+
+import cat.udl.eps.softarch.demo.domain.Location;
+import cat.udl.eps.softarch.demo.domain.User;
+import org.springframework.data.repository.CrudRepository;
+import org.springframework.data.repository.PagingAndSortingRepository;
+
+public interface LocationRepository extends CrudRepository<Location, String>, PagingAndSortingRepository<Location, String> {
+
+
+}