diff --git a/apps/as/src/entities/sewer-bsc-plan/api/queries.ts b/apps/as/src/entities/sewer-bsc-plan/api/queries.ts
index 5afd9bebd..6c3893b6b 100644
--- a/apps/as/src/entities/sewer-bsc-plan/api/queries.ts
+++ b/apps/as/src/entities/sewer-bsc-plan/api/queries.ts
@@ -94,8 +94,12 @@ export function useSaveApplySewerBscPlan() {
   const queryClient = useQueryClient();
   return useMutation({
     mutationFn: (body: SewerBscPlanApplySaveRequestDto) => sewerBscPlanService.saveApply(body),
-    onSuccess: () => {
-      queryClient.invalidateQueries({ queryKey: sewerBscPlanKeys.all });
+    onSuccess: (data) => {
+      if (data?.sewerBscPlanDocNo) {
+        queryClient.removeQueries({ queryKey: sewerBscPlanKeys.detail(data.sewerBscPlanDocNo) });
+        queryClient.removeQueries({ queryKey: sewerBscPlanKeys.details(data.sewerBscPlanDocNo) });
+      }
+      queryClient.invalidateQueries({ queryKey: sewerBscPlanKeys.all, refetchType: "all" });
     },
   });
 }
@@ -106,10 +110,9 @@ export function useSubmitSupplementSewerBscPlan() {
     mutationFn: ({ id, body }: { id: string; body: SewerBscPlanApplySaveRequestDto }) =>
       sewerBscPlanService.submitSupplement(id, body),
     onSuccess: (_data, { id }) => {
-      queryClient.invalidateQueries({ queryKey: sewerBscPlanKeys.all });
-      queryClient.invalidateQueries({
-        queryKey: sewerBscPlanKeys.detail(id),
-      });
+      queryClient.removeQueries({ queryKey: sewerBscPlanKeys.detail(id) });
+      queryClient.removeQueries({ queryKey: sewerBscPlanKeys.details(id) });
+      queryClient.invalidateQueries({ queryKey: sewerBscPlanKeys.all, refetchType: "all" });
     },
   });
 }
diff --git a/apps/as/src/pages/sewer-bsc-plan/ui/sewer-bsc-plan-detail-gate.tsx b/apps/as/src/pages/sewer-bsc-plan/ui/sewer-bsc-plan-detail-gate.tsx
index 22e4ffdd5..07ec15f08 100644
--- a/apps/as/src/pages/sewer-bsc-plan/ui/sewer-bsc-plan-detail-gate.tsx
+++ b/apps/as/src/pages/sewer-bsc-plan/ui/sewer-bsc-plan-detail-gate.tsx
@@ -13,7 +13,7 @@ interface SewerBscPlanDetailGateProps {
 
 function SewerBscPlanDetailGate({ id, propChgCycl }: SewerBscPlanDetailGateProps) {
   const userInfo = useUserStore((state) => state.userInfo);
-  const { data, isLoading, isError } = useSewerBscPlan(id);
+  const { data, isLoading, isFetching, isError } = useSewerBscPlan(id);
   const shouldRedirectToEdit = canEditPbadmsDoc({
     docSeComCd: "SEWER",
     prgrsSttsComCd: data?.detDto?.prgrsSttsComCd,
@@ -24,7 +24,7 @@ function SewerBscPlanDetailGate({ id, propChgCycl }: SewerBscPlanDetailGateProps
 
   return (
     <PbadmsDetailGate
-      isPending={!userInfo || isLoading}
+      isPending={!userInfo || isLoading || isFetching}
       isError={isError}
       shouldRedirectToEdit={Boolean(userInfo) && shouldRedirectToEdit}
       editHref={`/sewer-bsc-plan/${id}/edit?chgCycl=${chgCycl}`}
diff --git a/apps/as/src/pages/sewer-bsc-plan/ui/sewer-bsc-plan-edit-page.tsx b/apps/as/src/pages/sewer-bsc-plan/ui/sewer-bsc-plan-edit-page.tsx
index 738152ba2..e96fdefb8 100644
--- a/apps/as/src/pages/sewer-bsc-plan/ui/sewer-bsc-plan-edit-page.tsx
+++ b/apps/as/src/pages/sewer-bsc-plan/ui/sewer-bsc-plan-edit-page.tsx
@@ -1,6 +1,11 @@
 "use client";
 
+import { useEffect } from "react";
+import { useRouter } from "next/navigation";
+
+import { useUserStore, withListQs } from "@/shared/lib";
 import { useSewerBscPlanDetails } from "@/entities/sewer-bsc-plan";
+import { canEditPbadmsDoc } from "@/widgets/pbadms-sprt";
 import { Skeleton } from "@common/components";
 
 import { SewerBscPlanFormPage } from "./sewer-bsc-plan-form-page";
@@ -11,10 +16,26 @@ interface SewerBscPlanEditPageProps {
 }
 
 function SewerBscPlanEditPage({ id, propChgCycl }: SewerBscPlanEditPageProps) {
+  const router = useRouter();
+  const userInfo = useUserStore((state) => state.userInfo);
   const chgCycl = propChgCycl ?? 1;
   const { data, isLoading: isDetailsLoading } = useSewerBscPlanDetails(id, chgCycl);
 
-  if (isDetailsLoading) {
+  const canEdit = canEditPbadmsDoc({
+    docSeComCd: "SEWER",
+    prgrsSttsComCd: data?.detDto?.prgrsSttsComCd,
+    rgtr: data?.detDto?.rgtr,
+    loggedInUserUnqId: userInfo?.userUnqId,
+  });
+
+  useEffect(() => {
+    if (isDetailsLoading || !data?.detDto || !userInfo) return;
+    if (!canEdit) {
+      router.replace(withListQs(`/sewer-bsc-plan/${id}?chgCycl=${chgCycl}`));
+    }
+  }, [canEdit, chgCycl, data?.detDto, id, isDetailsLoading, router, userInfo]);
+
+  if (isDetailsLoading || (Boolean(data?.detDto) && !canEdit && Boolean(userInfo))) {
     return (
       <div className="mt-6 space-y-6 px-4">
         <div className="space-y-2">
diff --git a/apps/as/src/pages/sewer-bsc-plan/ui/sewer-bsc-plan-form-page.tsx b/apps/as/src/pages/sewer-bsc-plan/ui/sewer-bsc-plan-form-page.tsx
index b050aca4b..b1539c931 100644
--- a/apps/as/src/pages/sewer-bsc-plan/ui/sewer-bsc-plan-form-page.tsx
+++ b/apps/as/src/pages/sewer-bsc-plan/ui/sewer-bsc-plan-form-page.tsx
@@ -77,7 +77,9 @@ function SewerBscPlanFormPage({
   const alert = useAlertStore((state) => state.setMessage);
   const [isSubmitting, setIsSubmitting] = useState(false);
   const isEditMode = mode === "edit";
-  const isSplmntPrgrsStts = initialData?.detDto?.prgrsSttsComCd === "SL";
+  const prgrsSttsComCd = initialData?.detDto?.prgrsSttsComCd ?? "";
+  const isDraftStatus = !isEditMode || prgrsSttsComCd === "SV" || prgrsSttsComCd === "";
+  const isSplmntPrgrsStts = isEditMode && prgrsSttsComCd === "SL";
 
   const { data: acntgTree = [] } = useAcntgSeMngTree();
   const { data: essentialFiles = [] } = useEsntlAtchFileMngTree({ docSeComCd: "SEWER" });
@@ -164,10 +166,12 @@ function SewerBscPlanFormPage({
       if (!result?.sewerBscPlanDocNo) return;
 
       alert("신청 완료되었습니다.");
-      router.push(
+      queryClient.removeQueries({ queryKey: sewerBscPlanKeys.detail(result.sewerBscPlanDocNo) });
+      queryClient.removeQueries({ queryKey: sewerBscPlanKeys.details(result.sewerBscPlanDocNo) });
+      await queryClient.invalidateQueries({ queryKey: sewerBscPlanKeys.all, refetchType: "all" });
+      router.replace(
         withListQs(`/sewer-bsc-plan/${result.sewerBscPlanDocNo}?chgCycl=${result.chgCycl ?? 1}`),
       );
-      queryClient.invalidateQueries({ queryKey: sewerBscPlanKeys.all });
     } catch (error) {
       console.error("신청 실패:", error);
       alert("신청 중 오류가 발생했습니다.");
@@ -202,9 +206,11 @@ function SewerBscPlanFormPage({
       if (!result) return;
 
       alert("보완 완료 처리되었습니다.");
-      await queryClient.invalidateQueries({ queryKey: sewerBscPlanKeys.all });
+      queryClient.removeQueries({ queryKey: sewerBscPlanKeys.detail(docNo) });
+      queryClient.removeQueries({ queryKey: sewerBscPlanKeys.details(docNo) });
+      await queryClient.invalidateQueries({ queryKey: sewerBscPlanKeys.all, refetchType: "all" });
       const chgCycl = data.sewerBscPlanDtl.chgCycl ?? initialData?.detDto?.chgCycl ?? 1;
-      router.push(withListQs(`/sewer-bsc-plan/${docNo}?chgCycl=${chgCycl}`));
+      router.replace(withListQs(`/sewer-bsc-plan/${docNo}?chgCycl=${chgCycl}`));
     } catch (error) {
       console.error("보완 완료 실패:", error);
       alert("보완 완료 처리 중 오류가 발생했습니다.");
@@ -286,7 +292,15 @@ function SewerBscPlanFormPage({
                 >
                   목록
                 </Button>
-                {!isSplmntPrgrsStts ? (
+                {isSplmntPrgrsStts ? (
+                  <Button
+                    type="button"
+                    onClick={form.handleSubmit(onSplmntCmptn)}
+                    disabled={isSubmitting}
+                  >
+                    보완 완료
+                  </Button>
+                ) : isDraftStatus ? (
                   <>
                     <Button type="submit" disabled={isSubmitting}>
                       저장
@@ -312,15 +326,7 @@ function SewerBscPlanFormPage({
                       </>
                     )}
                   </>
-                ) : (
-                  <Button
-                    type="button"
-                    onClick={form.handleSubmit(onSplmntCmptn)}
-                    disabled={isSubmitting}
-                  >
-                    보완 완료
-                  </Button>
-                )}
+                ) : null}
               </div>
             </div>
           </div>