diff --git a/src/main/java/net/hostsharing/hsadminng/hs/hosting/asset/HsHostingAssetEntity.java b/src/main/java/net/hostsharing/hsadminng/hs/hosting/asset/HsHostingAssetEntity.java
index fa15537a..a9bea226 100644
--- a/src/main/java/net/hostsharing/hsadminng/hs/hosting/asset/HsHostingAssetEntity.java
+++ b/src/main/java/net/hostsharing/hsadminng/hs/hosting/asset/HsHostingAssetEntity.java
@@ -8,6 +8,7 @@ import lombok.Getter;
 import lombok.NoArgsConstructor;
 import lombok.Setter;
 import net.hostsharing.hsadminng.hs.booking.item.HsBookingItemEntity;
+import net.hostsharing.hsadminng.hs.hosting.contact.HsHostingContactEntity;
 import net.hostsharing.hsadminng.mapper.PatchableMapWrapper;
 import net.hostsharing.hsadminng.rbac.rbacdef.RbacView;
 import net.hostsharing.hsadminng.rbac.rbacdef.RbacView.SQL;
@@ -48,6 +49,7 @@ import static net.hostsharing.hsadminng.rbac.rbacdef.RbacView.Permission.UPDATE;
 import static net.hostsharing.hsadminng.rbac.rbacdef.RbacView.Role.ADMIN;
 import static net.hostsharing.hsadminng.rbac.rbacdef.RbacView.Role.AGENT;
 import static net.hostsharing.hsadminng.rbac.rbacdef.RbacView.Role.OWNER;
+import static net.hostsharing.hsadminng.rbac.rbacdef.RbacView.Role.REFERRER;
 import static net.hostsharing.hsadminng.rbac.rbacdef.RbacView.Role.TENANT;
 import static net.hostsharing.hsadminng.rbac.rbacdef.RbacView.SQL.directlyFetchedByDependsOnColumn;
 import static net.hostsharing.hsadminng.rbac.rbacdef.RbacView.rbacViewFor;
@@ -95,6 +97,10 @@ public class HsHostingAssetEntity implements Stringifyable, RbacObject {
     @Enumerated(EnumType.STRING)
     private HsHostingAssetType type;
 
+    @ManyToOne(fetch = FetchType.LAZY)
+    @JoinColumn(name = "alarmcontactuuid")
+    private HsHostingContactEntity alarmContactUuid;
+
     @OneToMany(cascade = CascadeType.REFRESH, orphanRemoval = true, fetch = FetchType.LAZY)
     @JoinColumn(name="parentassetuuid", referencedColumnName="uuid")
     private List<HsHostingAssetEntity> subHostingAssets;
@@ -167,10 +173,12 @@ public class HsHostingAssetEntity implements Stringifyable, RbacObject {
                 })
                 .createSubRole(AGENT, (with) -> {
                     with.outgoingSubRole("assignedToAsset", TENANT);
+                    with.outgoingSubRole("alarmContact", REFERRER);
                 })
                 .createSubRole(TENANT, (with) -> {
                     with.outgoingSubRole("bookingItem", TENANT);
                     with.outgoingSubRole("parentAsset", TENANT);
+                    with.incomingSuperRole("alarmContact", ADMIN);
                     with.permission(SELECT);
                 })
                 .limitDiagramTo("asset", "bookingItem", "bookingItem.debitorRel", "parentAsset", "assignedToAsset", "global");
diff --git a/src/main/java/net/hostsharing/hsadminng/hs/hosting/contact/HsHostingContactEntity.java b/src/main/java/net/hostsharing/hsadminng/hs/hosting/contact/HsHostingContactEntity.java
new file mode 100644
index 00000000..8d14865b
--- /dev/null
+++ b/src/main/java/net/hostsharing/hsadminng/hs/hosting/contact/HsHostingContactEntity.java
@@ -0,0 +1,57 @@
+package net.hostsharing.hsadminng.hs.hosting.contact;
+
+import io.hypersistence.utils.hibernate.type.json.JsonType;
+import lombok.*;
+import lombok.experimental.FieldNameConstants;
+import net.hostsharing.hsadminng.errors.DisplayName;
+import net.hostsharing.hsadminng.rbac.rbacobject.RbacObject;
+import net.hostsharing.hsadminng.stringify.Stringify;
+import net.hostsharing.hsadminng.stringify.Stringifyable;
+import org.hibernate.annotations.Type;
+
+import jakarta.persistence.*;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.UUID;
+
+import static net.hostsharing.hsadminng.stringify.Stringify.stringify;
+
+@Entity
+@Table(name = "hs_office_contact_rv")
+@Getter
+@Builder
+@NoArgsConstructor
+@AllArgsConstructor
+@FieldNameConstants
+@DisplayName("Contact")
+public class HsHostingContactEntity implements Stringifyable, RbacObject {
+
+    private static Stringify<HsHostingContactEntity> toString = stringify(HsHostingContactEntity.class, "contact")
+            .withProp(HsHostingContactEntity.Fields.caption, HsHostingContactEntity::getCaption)
+            .withProp(HsHostingContactEntity.Fields.emailAddresses, HsHostingContactEntity::getEmailAddresses);
+
+    @Id
+    private UUID uuid;
+
+    @Version
+    private int version;
+
+    @Column(name = "caption")
+    private String caption;
+
+    @Builder.Default
+    @Setter(AccessLevel.NONE)
+    @Type(JsonType.class)
+    @Column(name = "emailaddresses")
+    private Map<String, String> emailAddresses = new HashMap<>();
+
+    @Override
+    public String toString() {
+        return toString.apply(this);
+    }
+
+    @Override
+    public String toShortString() {
+        return caption;
+    }
+}
diff --git a/src/test/java/net/hostsharing/hsadminng/hs/hosting/contact/HsHostingContactEntityUnitTest.java b/src/test/java/net/hostsharing/hsadminng/hs/hosting/contact/HsHostingContactEntityUnitTest.java
new file mode 100644
index 00000000..9a57a6a2
--- /dev/null
+++ b/src/test/java/net/hostsharing/hsadminng/hs/hosting/contact/HsHostingContactEntityUnitTest.java
@@ -0,0 +1,20 @@
+package net.hostsharing.hsadminng.hs.hosting.contact;
+
+import org.junit.jupiter.api.Test;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+class HsHostingContactEntityUnitTest {
+
+    @Test
+    void toStringReturnsNullForNullContact() {
+        final HsHostingContactEntity givenContact = null;
+        assertThat("" + givenContact).isEqualTo("null");
+    }
+
+    @Test
+    void toStringReturnsCaption() {
+        final var givenContact = HsHostingContactEntity.builder().caption("given caption").build();
+        assertThat("" + givenContact).isEqualTo("contact(caption='given caption')");
+    }
+}