diff --git a/asset_list/AssetList.py b/asset_list/AssetList.py
index 1a3f6180..fde24fe2 100644
--- a/asset_list/AssetList.py
+++ b/asset_list/AssetList.py
@@ -1,5 +1,4 @@
-import os
-import usaddress
+import re
 import pandas as pd
 from utils.logger import setup_logger
 from backend.SearchEpc import SearchEpc
@@ -42,6 +41,9 @@ class AssetList:
 
     DOMNA_PROPERTY_ID = "domna_property_id"
 
+    # Regular expression for identifying if the address might point to multiple units
+    MULTI_UNIT_REGEX = re.compile(r'\b([A-Za-z0-9]+)-([A-Za-z0-9]+)\b')
+
     def __init__(
         self,
         local_filepath,
@@ -139,6 +141,14 @@ class AssetList:
         cleaned = cleaned.rstrip(", ").strip(",").strip()
         return cleaned
 
+    @classmethod
+    def _identify_multi_address(cls, address):
+        # We check if the address is comma separated
+        if "," in address:
+            address1_section = address.split(",")[0]
+            # We look for string in the form (x-y)
+            return bool(cls.MULTI_UNIT_REGEX.search(address1_section))
+
     def standardise(self):
         """
         This function is used to standardise the asset list
@@ -205,4 +215,6 @@ class AssetList:
             ]
         ]
 
+        # We idenfiy addresses which are likely to be multi-addresses (i.g are rooms x-y)
+
         raise NotImplementedError
diff --git a/asset_list/tests/test_standardisation.py b/asset_list/tests/test_standardisation.py
index 1a083bbc..b6d9a391 100644
--- a/asset_list/tests/test_standardisation.py
+++ b/asset_list/tests/test_standardisation.py
@@ -1,12 +1,5 @@
 from asset_list.AssetList import AssetList
-from backend.SearchEpc import
 
 
-
-def test_address1_extraction():
-    example = 'Block (Rooms 1-4), 23 Clifton Hill, Newtown, Exeter, EX1 2DL'
-
-    # AssetList._extract_address1(
-    #     example,
-    # )
-    pass
+def test_multi_unit_address_flagging():
+    assert AssetList._identify_multi_address('Block (Rooms 1-4), 23 Clifton Hill, Newtown, Exeter, EX1 2DL')