diff --git a/frontend/src/hooks/useCustomPois.ts b/frontend/src/hooks/useCustomPois.ts
index ef3e0fcb..958c518a 100644
--- a/frontend/src/hooks/useCustomPois.ts
+++ b/frontend/src/hooks/useCustomPois.ts
@@ -27,8 +27,20 @@ function customPoisKey(parcelCad?: string | null): unknown[] {
   return ["custom-pois", parcelCad ?? null];
 }
 
+// Canonical analyze key prefix is ["parcel-analyze", cad, horizon] (see
+// site-finder-api.ts `useParcelAnalyzeQuery`); invalidating with the
+// prefix [parcel-analyze, cad] matches every horizon variant. Custom-POI
+// add/update/delete also influences the standalone POI score endpoint
+// ["parcel-poi-score", cad] (see `useParcelPoiScoreQuery`), so both must
+// be invalidated to refresh score + breakdown after a mutation. The
+// previous key ["analyze", cad] never matched any live useQuery — bug
+// reference: issue #1241.
 function analyzeKey(parcelCad: string): unknown[] {
-  return ["analyze", parcelCad];
+  return ["parcel-analyze", parcelCad];
+}
+
+function poiScoreKey(parcelCad: string): unknown[] {
+  return ["parcel-poi-score", parcelCad];
 }
 
 // ---------------------------------------------------------------------------
@@ -56,7 +68,10 @@ export function useCustomPois(parcelCad?: string | null) {
 }
 
 /**
- * Create a custom POI. Invalidates list + analyze query on success.
+ * Create a custom POI. On success invalidates:
+ *   - ["custom-pois", parcelCad] (scoped list) + ["custom-pois", null] (global)
+ *   - ["parcel-analyze", parcelCad] prefix (matches every horizon variant)
+ *   - ["parcel-poi-score", parcelCad] (POI weighted score)
  */
 export function useAddCustomPoi(parcelCad?: string | null) {
   const queryClient = useQueryClient();
@@ -75,6 +90,9 @@ export function useAddCustomPoi(parcelCad?: string | null) {
       void queryClient.invalidateQueries({ queryKey: customPoisKey(null) });
       if (parcelCad) {
         void queryClient.invalidateQueries({ queryKey: analyzeKey(parcelCad) });
+        void queryClient.invalidateQueries({
+          queryKey: poiScoreKey(parcelCad),
+        });
       }
     },
   });
@@ -99,6 +117,9 @@ export function useUpdateCustomPoi(parcelCad?: string | null) {
       void queryClient.invalidateQueries({ queryKey: customPoisKey(null) });
       if (parcelCad) {
         void queryClient.invalidateQueries({ queryKey: analyzeKey(parcelCad) });
+        void queryClient.invalidateQueries({
+          queryKey: poiScoreKey(parcelCad),
+        });
       }
     },
   });
@@ -122,6 +143,9 @@ export function useDeleteCustomPoi(parcelCad?: string | null) {
       void queryClient.invalidateQueries({ queryKey: customPoisKey(null) });
       if (parcelCad) {
         void queryClient.invalidateQueries({ queryKey: analyzeKey(parcelCad) });
+        void queryClient.invalidateQueries({
+          queryKey: poiScoreKey(parcelCad),
+        });
       }
     },
   });