diff --git a/epdc-commons-tools/src/main/java/com/elink/esua/epdc/commons/tools/redis/RedisKeys.java b/epdc-commons-tools/src/main/java/com/elink/esua/epdc/commons/tools/redis/RedisKeys.java
index f649617..f3091c3 100644
--- a/epdc-commons-tools/src/main/java/com/elink/esua/epdc/commons/tools/redis/RedisKeys.java
+++ b/epdc-commons-tools/src/main/java/com/elink/esua/epdc/commons/tools/redis/RedisKeys.java
@@ -363,4 +363,40 @@ public class RedisKeys {
     public static String getFileName4Import(String fileName) {
         return rootPrefix.concat("user:info:import").concat(fileName);
     }
+
+    /**
+     * 楼栋最大编码
+     *
+     * @param plotId
+     * @return java.lang.String
+     * @author zhy
+     * @date 2022/6/16 14:02
+     */
+    public static String getMaBuildingCodeKey(String plotId) {
+        return rootPrefix.concat("user:room:building:").concat(plotId);
+    }
+
+    /**
+     * 单元最大编码
+     *
+     * @param buildingId
+     * @return java.lang.String
+     * @author zhy
+     * @date 2022/6/16 14:02
+     */
+    public static String getMaUnitCodeKey(String buildingId) {
+        return rootPrefix.concat("user:room:building:").concat(buildingId);
+    }
+
+    /**
+     * 房屋最大编码
+     *
+     * @param buildingId
+     * @return java.lang.String
+     * @author zhy
+     * @date 2022/6/16 14:02
+     */
+    public static String getMaRoomCodeKey(String buildingId, String unit) {
+        return rootPrefix.concat("user:room:building:").concat(buildingId).concat(unit);
+    }
 }