diff --git a/apps/as/src/entities/design-cnstn/api/design-cnstn-biz-cst-service.ts b/apps/as/src/entities/design-cnstn/api/design-cnstn-biz-cst-service.ts
new file mode 100644
index 000000000..427f6e65a
--- /dev/null
+++ b/apps/as/src/entities/design-cnstn/api/design-cnstn-biz-cst-service.ts
@@ -0,0 +1,58 @@
+import { client } from "@/shared/api";
+import { ENDPOINT } from "@/shared/config";
+import type { PageResponse } from "@/shared/model";
+
+import type {
+  DesignCnstnBizCstId,
+  DesignCnstnBizCstResponseDto,
+  DesignCnstnBizCstSaveRequestDto,
+  DesignCnstnBizCstSearchDto,
+  DesignCnstnBizCstService,
+  DesignCnstnBizCstUpdateRequestDto,
+} from "../model/design-cnstn-biz-cst-interface";
+
+const BASE = ENDPOINT.AS_SERVICE.DESIGN_CNSTN_BIZ_CST;
+
+async function findPage(
+  searchDto: DesignCnstnBizCstSearchDto,
+): Promise<PageResponse<DesignCnstnBizCstResponseDto>> {
+  const response = await client.get<PageResponse<DesignCnstnBizCstResponseDto>>(BASE, {
+    params: searchDto,
+  });
+  return response.data;
+}
+
+async function findById(
+  designCnstnDocNo: string,
+  acntgSeCd: string,
+): Promise<DesignCnstnBizCstResponseDto> {
+  const response = await client.get<DesignCnstnBizCstResponseDto>(
+    `${BASE}/${designCnstnDocNo}/${acntgSeCd}`,
+  );
+  return response.data;
+}
+
+async function save(body: DesignCnstnBizCstSaveRequestDto): Promise<DesignCnstnBizCstId> {
+  const response = await client.post<DesignCnstnBizCstId>(BASE, body);
+  return response.data;
+}
+
+async function update(
+  designCnstnDocNo: string,
+  acntgSeCd: string,
+  body: DesignCnstnBizCstUpdateRequestDto,
+): Promise<void> {
+  await client.put<void>(`${BASE}/${designCnstnDocNo}/${acntgSeCd}`, body);
+}
+
+async function deleteDesignCnstnBizCst(designCnstnDocNo: string, acntgSeCd: string): Promise<void> {
+  await client.delete<void>(`${BASE}/${designCnstnDocNo}/${acntgSeCd}`);
+}
+
+export const designCnstnBizCstService = {
+  findPage,
+  findById,
+  save,
+  update,
+  delete: deleteDesignCnstnBizCst,
+} satisfies DesignCnstnBizCstService;
diff --git a/apps/as/src/entities/design-cnstn/api/design-cnstn-biz-scl-service.ts b/apps/as/src/entities/design-cnstn/api/design-cnstn-biz-scl-service.ts
new file mode 100644
index 000000000..d4cc8cabf
--- /dev/null
+++ b/apps/as/src/entities/design-cnstn/api/design-cnstn-biz-scl-service.ts
@@ -0,0 +1,58 @@
+import { client } from "@/shared/api";
+import { ENDPOINT } from "@/shared/config";
+import type { PageResponse } from "@/shared/model";
+
+import type {
+  DesignCnstnBizSclId,
+  DesignCnstnBizSclResponseDto,
+  DesignCnstnBizSclSaveRequestDto,
+  DesignCnstnBizSclSearchDto,
+  DesignCnstnBizSclService,
+  DesignCnstnBizSclUpdateRequestDto,
+} from "../model/design-cnstn-biz-scl-interface";
+
+const BASE = ENDPOINT.AS_SERVICE.DESIGN_CNSTN_BIZ_SCL;
+
+async function findPage(
+  searchDto: DesignCnstnBizSclSearchDto,
+): Promise<PageResponse<DesignCnstnBizSclResponseDto>> {
+  const response = await client.get<PageResponse<DesignCnstnBizSclResponseDto>>(BASE, {
+    params: searchDto,
+  });
+  return response.data;
+}
+
+async function findById(
+  designCnstnDocNo: string,
+  cnstpSeCd: string,
+): Promise<DesignCnstnBizSclResponseDto> {
+  const response = await client.get<DesignCnstnBizSclResponseDto>(
+    `${BASE}/${designCnstnDocNo}/${cnstpSeCd}`,
+  );
+  return response.data;
+}
+
+async function save(body: DesignCnstnBizSclSaveRequestDto): Promise<DesignCnstnBizSclId> {
+  const response = await client.post<DesignCnstnBizSclId>(BASE, body);
+  return response.data;
+}
+
+async function update(
+  designCnstnDocNo: string,
+  cnstpSeCd: string,
+  body: DesignCnstnBizSclUpdateRequestDto,
+): Promise<void> {
+  await client.put<void>(`${BASE}/${designCnstnDocNo}/${cnstpSeCd}`, body);
+}
+
+async function deleteDesignCnstnBizScl(designCnstnDocNo: string, cnstpSeCd: string): Promise<void> {
+  await client.delete<void>(`${BASE}/${designCnstnDocNo}/${cnstpSeCd}`);
+}
+
+export const designCnstnBizSclService = {
+  findPage,
+  findById,
+  save,
+  update,
+  delete: deleteDesignCnstnBizScl,
+} satisfies DesignCnstnBizSclService;
diff --git a/apps/as/src/entities/design-cnstn/api/design-cnstn-esntl-atch-file-service.ts b/apps/as/src/entities/design-cnstn/api/design-cnstn-esntl-atch-file-service.ts
new file mode 100644
index 000000000..a47993149
--- /dev/null
+++ b/apps/as/src/entities/design-cnstn/api/design-cnstn-esntl-atch-file-service.ts
@@ -0,0 +1,63 @@
+import { client } from "@/shared/api";
+import { ENDPOINT } from "@/shared/config";
+import type { PageResponse } from "@/shared/model";
+
+import type {
+  DesignCnstnEsntlAtchFileId,
+  DesignCnstnEsntlAtchFileResponseDto,
+  DesignCnstnEsntlAtchFileSaveRequestDto,
+  DesignCnstnEsntlAtchFileSearchDto,
+  DesignCnstnEsntlAtchFileService,
+  DesignCnstnEsntlAtchFileUpdateRequestDto,
+} from "../model/design-cnstn-esntl-atch-file-interface";
+
+const BASE = ENDPOINT.AS_SERVICE.DESIGN_CNSTN_ESNTL_ATCH_FILE;
+
+async function findPage(
+  searchDto: DesignCnstnEsntlAtchFileSearchDto,
+): Promise<PageResponse<DesignCnstnEsntlAtchFileResponseDto>> {
+  const response = await client.get<PageResponse<DesignCnstnEsntlAtchFileResponseDto>>(BASE, {
+    params: searchDto,
+  });
+  return response.data;
+}
+
+async function findById(
+  designCnstnDocNo: string,
+  esntlAtchFileId: string,
+): Promise<DesignCnstnEsntlAtchFileResponseDto> {
+  const response = await client.get<DesignCnstnEsntlAtchFileResponseDto>(
+    `${BASE}/${designCnstnDocNo}/${esntlAtchFileId}`,
+  );
+  return response.data;
+}
+
+async function save(
+  body: DesignCnstnEsntlAtchFileSaveRequestDto,
+): Promise<DesignCnstnEsntlAtchFileId> {
+  const response = await client.post<DesignCnstnEsntlAtchFileId>(BASE, body);
+  return response.data;
+}
+
+async function update(
+  designCnstnDocNo: string,
+  esntlAtchFileId: string,
+  body: DesignCnstnEsntlAtchFileUpdateRequestDto,
+): Promise<void> {
+  await client.put<void>(`${BASE}/${designCnstnDocNo}/${esntlAtchFileId}`, body);
+}
+
+async function deleteDesignCnstnEsntlAtchFile(
+  designCnstnDocNo: string,
+  esntlAtchFileId: string,
+): Promise<void> {
+  await client.delete<void>(`${BASE}/${designCnstnDocNo}/${esntlAtchFileId}`);
+}
+
+export const designCnstnEsntlAtchFileService = {
+  findPage,
+  findById,
+  save,
+  update,
+  delete: deleteDesignCnstnEsntlAtchFile,
+} satisfies DesignCnstnEsntlAtchFileService;
diff --git a/apps/as/src/entities/design-cnstn/api/design-cnstn-mng-service.ts b/apps/as/src/entities/design-cnstn/api/design-cnstn-mng-service.ts
new file mode 100644
index 000000000..3fc3e52ae
--- /dev/null
+++ b/apps/as/src/entities/design-cnstn/api/design-cnstn-mng-service.ts
@@ -0,0 +1,61 @@
+import { client } from "@/shared/api";
+import { ENDPOINT } from "@/shared/config";
+import type { PageResponse } from "@/shared/model";
+
+import type {
+  DesignCnstnApplySaveRequestDto,
+  DesignCnstnMngDetResponseDto,
+  DesignCnstnMngResponseDto,
+  DesignCnstnMngSaveRequestDto,
+  DesignCnstnMngSearchDto,
+  DesignCnstnMngService,
+  DesignCnstnMngUpdateRequestDto,
+} from "../model/design-cnstn-mng-interface";
+
+const BASE = ENDPOINT.AS_SERVICE.DESIGN_CNSTN;
+
+async function findPage(
+  searchDto: DesignCnstnMngSearchDto,
+): Promise<PageResponse<DesignCnstnMngResponseDto>> {
+  const response = await client.get<PageResponse<DesignCnstnMngResponseDto>>(BASE, {
+    params: searchDto,
+  });
+  return response.data;
+}
+
+async function findById(id: string): Promise<DesignCnstnMngDetResponseDto> {
+  const response = await client.get<DesignCnstnMngDetResponseDto>(`${BASE}/${id}`);
+  return response.data;
+}
+
+async function save(body: DesignCnstnMngSaveRequestDto): Promise<string> {
+  const response = await client.post<string>(BASE, body);
+  return response.data;
+}
+
+async function saveApply(body: DesignCnstnApplySaveRequestDto): Promise<string> {
+  const response = await client.post<string>(`${BASE}/save-apply`, body);
+  return response.data;
+}
+
+async function update(id: string, body: DesignCnstnMngUpdateRequestDto): Promise<void> {
+  await client.put<void>(`${BASE}/${id}`, body);
+}
+
+async function techReview(id: string, body: DesignCnstnApplySaveRequestDto): Promise<void> {
+  await client.post<void>(`${BASE}/${id}/tech-review`, body);
+}
+
+async function deleteDesignCnstnMng(id: string): Promise<void> {
+  await client.delete<void>(`${BASE}/${id}`);
+}
+
+export const designCnstnMngService = {
+  findPage,
+  findById,
+  save,
+  saveApply,
+  update,
+  techReview,
+  delete: deleteDesignCnstnMng,
+} satisfies DesignCnstnMngService;
diff --git a/apps/as/src/entities/design-cnstn/api/design-cnstn-rvw-opnn-service.ts b/apps/as/src/entities/design-cnstn/api/design-cnstn-rvw-opnn-service.ts
new file mode 100644
index 000000000..514a0423f
--- /dev/null
+++ b/apps/as/src/entities/design-cnstn/api/design-cnstn-rvw-opnn-service.ts
@@ -0,0 +1,61 @@
+import { client } from "@/shared/api";
+import { ENDPOINT } from "@/shared/config";
+import type { PageResponse } from "@/shared/model";
+
+import type {
+  DesignCnstnRvwOpnnId,
+  DesignCnstnRvwOpnnResponseDto,
+  DesignCnstnRvwOpnnSaveRequestDto,
+  DesignCnstnRvwOpnnSearchDto,
+  DesignCnstnRvwOpnnService,
+  DesignCnstnRvwOpnnUpdateRequestDto,
+} from "../model/design-cnstn-rvw-opnn-interface";
+
+const BASE = ENDPOINT.AS_SERVICE.DESIGN_CNSTN_RVW_OPNN;
+
+async function findPage(
+  searchDto: DesignCnstnRvwOpnnSearchDto,
+): Promise<PageResponse<DesignCnstnRvwOpnnResponseDto>> {
+  const response = await client.get<PageResponse<DesignCnstnRvwOpnnResponseDto>>(BASE, {
+    params: searchDto,
+  });
+  return response.data;
+}
+
+async function findById(
+  designCnstnDocNo: string,
+  rvwOpnnSn: number,
+): Promise<DesignCnstnRvwOpnnResponseDto> {
+  const response = await client.get<DesignCnstnRvwOpnnResponseDto>(
+    `${BASE}/${designCnstnDocNo}/${rvwOpnnSn}`,
+  );
+  return response.data;
+}
+
+async function save(body: DesignCnstnRvwOpnnSaveRequestDto): Promise<DesignCnstnRvwOpnnId> {
+  const response = await client.post<DesignCnstnRvwOpnnId>(BASE, body);
+  return response.data;
+}
+
+async function update(
+  designCnstnDocNo: string,
+  rvwOpnnSn: number,
+  body: DesignCnstnRvwOpnnUpdateRequestDto,
+): Promise<void> {
+  await client.put<void>(`${BASE}/${designCnstnDocNo}/${rvwOpnnSn}`, body);
+}
+
+async function deleteDesignCnstnRvwOpnn(
+  designCnstnDocNo: string,
+  rvwOpnnSn: number,
+): Promise<void> {
+  await client.delete<void>(`${BASE}/${designCnstnDocNo}/${rvwOpnnSn}`);
+}
+
+export const designCnstnRvwOpnnService = {
+  findPage,
+  findById,
+  save,
+  update,
+  delete: deleteDesignCnstnRvwOpnn,
+} satisfies DesignCnstnRvwOpnnService;
diff --git a/apps/as/src/entities/design-cnstn/api/queries.ts b/apps/as/src/entities/design-cnstn/api/queries.ts
new file mode 100644
index 000000000..bafc9784a
--- /dev/null
+++ b/apps/as/src/entities/design-cnstn/api/queries.ts
@@ -0,0 +1,411 @@
+import { useMutation, useQuery, useQueryClient } from "@tanstack/react-query";
+
+import { ENDPOINT } from "@/shared/config";
+
+import type {
+  DesignCnstnBizCstSaveRequestDto,
+  DesignCnstnBizCstSearchDto,
+  DesignCnstnBizCstUpdateRequestDto,
+} from "../model/design-cnstn-biz-cst-interface";
+import type {
+  DesignCnstnBizSclSaveRequestDto,
+  DesignCnstnBizSclSearchDto,
+  DesignCnstnBizSclUpdateRequestDto,
+} from "../model/design-cnstn-biz-scl-interface";
+import type {
+  DesignCnstnEsntlAtchFileSaveRequestDto,
+  DesignCnstnEsntlAtchFileSearchDto,
+  DesignCnstnEsntlAtchFileUpdateRequestDto,
+} from "../model/design-cnstn-esntl-atch-file-interface";
+import type {
+  DesignCnstnApplySaveRequestDto,
+  DesignCnstnMngSaveRequestDto,
+  DesignCnstnMngSearchDto,
+  DesignCnstnMngUpdateRequestDto,
+} from "../model/design-cnstn-mng-interface";
+import type {
+  DesignCnstnRvwOpnnSaveRequestDto,
+  DesignCnstnRvwOpnnSearchDto,
+  DesignCnstnRvwOpnnUpdateRequestDto,
+} from "../model/design-cnstn-rvw-opnn-interface";
+
+import { designCnstnBizCstService } from "./design-cnstn-biz-cst-service";
+import { designCnstnBizSclService } from "./design-cnstn-biz-scl-service";
+import { designCnstnEsntlAtchFileService } from "./design-cnstn-esntl-atch-file-service";
+import { designCnstnMngService } from "./design-cnstn-mng-service";
+import { designCnstnRvwOpnnService } from "./design-cnstn-rvw-opnn-service";
+
+export const designCnstnMngBaseKey = [ENDPOINT.AS_SERVICE.DESIGN_CNSTN] as const;
+export const designCnstnBizCstBaseKey = [ENDPOINT.AS_SERVICE.DESIGN_CNSTN_BIZ_CST] as const;
+export const designCnstnBizSclBaseKey = [ENDPOINT.AS_SERVICE.DESIGN_CNSTN_BIZ_SCL] as const;
+export const designCnstnEsntlAtchFileBaseKey = [
+  ENDPOINT.AS_SERVICE.DESIGN_CNSTN_ESNTL_ATCH_FILE,
+] as const;
+export const designCnstnRvwOpnnBaseKey = [ENDPOINT.AS_SERVICE.DESIGN_CNSTN_RVW_OPNN] as const;
+
+/* ─── DesignCnstnMng ─── */
+
+export function useDesignCnstnMngPage(params: DesignCnstnMngSearchDto) {
+  return useQuery({
+    queryKey: [...designCnstnMngBaseKey, "findPage", params],
+    queryFn: () => designCnstnMngService.findPage(params),
+  });
+}
+
+export function useDesignCnstnMng(id: string | null | undefined) {
+  return useQuery({
+    queryKey: [...designCnstnMngBaseKey, "findById", id],
+    queryFn: () => designCnstnMngService.findById(id!),
+    enabled: Boolean(id),
+  });
+}
+
+export function useSaveDesignCnstnMng() {
+  const queryClient = useQueryClient();
+  return useMutation({
+    mutationFn: (body: DesignCnstnMngSaveRequestDto) => designCnstnMngService.save(body),
+    onSuccess: () => {
+      queryClient.invalidateQueries({ queryKey: designCnstnMngBaseKey });
+    },
+  });
+}
+
+export function useSaveApplyDesignCnstnMng() {
+  const queryClient = useQueryClient();
+  return useMutation({
+    mutationFn: (body: DesignCnstnApplySaveRequestDto) => designCnstnMngService.saveApply(body),
+    onSuccess: () => {
+      queryClient.invalidateQueries({ queryKey: designCnstnMngBaseKey });
+    },
+  });
+}
+
+export function useUpdateDesignCnstnMng() {
+  const queryClient = useQueryClient();
+  return useMutation({
+    mutationFn: ({ id, body }: { id: string; body: DesignCnstnMngUpdateRequestDto }) =>
+      designCnstnMngService.update(id, body),
+    onSuccess: (_data, { id }) => {
+      queryClient.invalidateQueries({ queryKey: designCnstnMngBaseKey });
+      queryClient.invalidateQueries({
+        queryKey: [...designCnstnMngBaseKey, "findById", id],
+      });
+    },
+  });
+}
+
+export function useTechReviewDesignCnstnMng() {
+  const queryClient = useQueryClient();
+  return useMutation({
+    mutationFn: ({ id, body }: { id: string; body: DesignCnstnApplySaveRequestDto }) =>
+      designCnstnMngService.techReview(id, body),
+    onSuccess: (_data, { id }) => {
+      queryClient.invalidateQueries({ queryKey: designCnstnMngBaseKey });
+      queryClient.invalidateQueries({
+        queryKey: [...designCnstnMngBaseKey, "findById", id],
+      });
+    },
+  });
+}
+
+export function useDeleteDesignCnstnMng() {
+  const queryClient = useQueryClient();
+  return useMutation({
+    mutationFn: (id: string) => designCnstnMngService.delete(id),
+    onSuccess: () => {
+      queryClient.invalidateQueries({ queryKey: designCnstnMngBaseKey });
+    },
+  });
+}
+
+/* ─── DesignCnstnBizCst ─── */
+
+export function useDesignCnstnBizCstPage(params: DesignCnstnBizCstSearchDto) {
+  return useQuery({
+    queryKey: [...designCnstnBizCstBaseKey, "findPage", params],
+    queryFn: () => designCnstnBizCstService.findPage(params),
+  });
+}
+
+export function useDesignCnstnBizCst(
+  designCnstnDocNo: string | null | undefined,
+  acntgSeCd: string | null | undefined,
+) {
+  return useQuery({
+    queryKey: [...designCnstnBizCstBaseKey, "findById", designCnstnDocNo, acntgSeCd],
+    queryFn: () => designCnstnBizCstService.findById(designCnstnDocNo!, acntgSeCd!),
+    enabled: Boolean(designCnstnDocNo && acntgSeCd),
+  });
+}
+
+export function useSaveDesignCnstnBizCst() {
+  const queryClient = useQueryClient();
+  return useMutation({
+    mutationFn: (body: DesignCnstnBizCstSaveRequestDto) => designCnstnBizCstService.save(body),
+    onSuccess: () => {
+      queryClient.invalidateQueries({ queryKey: designCnstnBizCstBaseKey });
+      queryClient.invalidateQueries({ queryKey: designCnstnMngBaseKey });
+    },
+  });
+}
+
+export function useUpdateDesignCnstnBizCst() {
+  const queryClient = useQueryClient();
+  return useMutation({
+    mutationFn: ({
+      designCnstnDocNo,
+      acntgSeCd,
+      body,
+    }: {
+      designCnstnDocNo: string;
+      acntgSeCd: string;
+      body: DesignCnstnBizCstUpdateRequestDto;
+    }) => designCnstnBizCstService.update(designCnstnDocNo, acntgSeCd, body),
+    onSuccess: (_data, { designCnstnDocNo, acntgSeCd }) => {
+      queryClient.invalidateQueries({ queryKey: designCnstnBizCstBaseKey });
+      queryClient.invalidateQueries({
+        queryKey: [...designCnstnBizCstBaseKey, "findById", designCnstnDocNo, acntgSeCd],
+      });
+      queryClient.invalidateQueries({ queryKey: designCnstnMngBaseKey });
+    },
+  });
+}
+
+export function useDeleteDesignCnstnBizCst() {
+  const queryClient = useQueryClient();
+  return useMutation({
+    mutationFn: ({
+      designCnstnDocNo,
+      acntgSeCd,
+    }: {
+      designCnstnDocNo: string;
+      acntgSeCd: string;
+    }) => designCnstnBizCstService.delete(designCnstnDocNo, acntgSeCd),
+    onSuccess: () => {
+      queryClient.invalidateQueries({ queryKey: designCnstnBizCstBaseKey });
+      queryClient.invalidateQueries({ queryKey: designCnstnMngBaseKey });
+    },
+  });
+}
+
+/* ─── DesignCnstnBizScl ─── */
+
+export function useDesignCnstnBizSclPage(params: DesignCnstnBizSclSearchDto) {
+  return useQuery({
+    queryKey: [...designCnstnBizSclBaseKey, "findPage", params],
+    queryFn: () => designCnstnBizSclService.findPage(params),
+  });
+}
+
+export function useDesignCnstnBizScl(
+  designCnstnDocNo: string | null | undefined,
+  cnstpSeCd: string | null | undefined,
+) {
+  return useQuery({
+    queryKey: [...designCnstnBizSclBaseKey, "findById", designCnstnDocNo, cnstpSeCd],
+    queryFn: () => designCnstnBizSclService.findById(designCnstnDocNo!, cnstpSeCd!),
+    enabled: Boolean(designCnstnDocNo && cnstpSeCd),
+  });
+}
+
+export function useSaveDesignCnstnBizScl() {
+  const queryClient = useQueryClient();
+  return useMutation({
+    mutationFn: (body: DesignCnstnBizSclSaveRequestDto) => designCnstnBizSclService.save(body),
+    onSuccess: () => {
+      queryClient.invalidateQueries({ queryKey: designCnstnBizSclBaseKey });
+      queryClient.invalidateQueries({ queryKey: designCnstnMngBaseKey });
+    },
+  });
+}
+
+export function useUpdateDesignCnstnBizScl() {
+  const queryClient = useQueryClient();
+  return useMutation({
+    mutationFn: ({
+      designCnstnDocNo,
+      cnstpSeCd,
+      body,
+    }: {
+      designCnstnDocNo: string;
+      cnstpSeCd: string;
+      body: DesignCnstnBizSclUpdateRequestDto;
+    }) => designCnstnBizSclService.update(designCnstnDocNo, cnstpSeCd, body),
+    onSuccess: (_data, { designCnstnDocNo, cnstpSeCd }) => {
+      queryClient.invalidateQueries({ queryKey: designCnstnBizSclBaseKey });
+      queryClient.invalidateQueries({
+        queryKey: [...designCnstnBizSclBaseKey, "findById", designCnstnDocNo, cnstpSeCd],
+      });
+      queryClient.invalidateQueries({ queryKey: designCnstnMngBaseKey });
+    },
+  });
+}
+
+export function useDeleteDesignCnstnBizScl() {
+  const queryClient = useQueryClient();
+  return useMutation({
+    mutationFn: ({
+      designCnstnDocNo,
+      cnstpSeCd,
+    }: {
+      designCnstnDocNo: string;
+      cnstpSeCd: string;
+    }) => designCnstnBizSclService.delete(designCnstnDocNo, cnstpSeCd),
+    onSuccess: () => {
+      queryClient.invalidateQueries({ queryKey: designCnstnBizSclBaseKey });
+      queryClient.invalidateQueries({ queryKey: designCnstnMngBaseKey });
+    },
+  });
+}
+
+/* ─── DesignCnstnEsntlAtchFile ─── */
+
+export function useDesignCnstnEsntlAtchFilePage(params: DesignCnstnEsntlAtchFileSearchDto) {
+  return useQuery({
+    queryKey: [...designCnstnEsntlAtchFileBaseKey, "findPage", params],
+    queryFn: () => designCnstnEsntlAtchFileService.findPage(params),
+  });
+}
+
+export function useDesignCnstnEsntlAtchFile(
+  designCnstnDocNo: string | null | undefined,
+  esntlAtchFileId: string | null | undefined,
+) {
+  return useQuery({
+    queryKey: [
+      ...designCnstnEsntlAtchFileBaseKey,
+      "findById",
+      designCnstnDocNo,
+      esntlAtchFileId,
+    ],
+    queryFn: () =>
+      designCnstnEsntlAtchFileService.findById(designCnstnDocNo!, esntlAtchFileId!),
+    enabled: Boolean(designCnstnDocNo && esntlAtchFileId),
+  });
+}
+
+export function useSaveDesignCnstnEsntlAtchFile() {
+  const queryClient = useQueryClient();
+  return useMutation({
+    mutationFn: (body: DesignCnstnEsntlAtchFileSaveRequestDto) =>
+      designCnstnEsntlAtchFileService.save(body),
+    onSuccess: () => {
+      queryClient.invalidateQueries({ queryKey: designCnstnEsntlAtchFileBaseKey });
+      queryClient.invalidateQueries({ queryKey: designCnstnMngBaseKey });
+    },
+  });
+}
+
+export function useUpdateDesignCnstnEsntlAtchFile() {
+  const queryClient = useQueryClient();
+  return useMutation({
+    mutationFn: ({
+      designCnstnDocNo,
+      esntlAtchFileId,
+      body,
+    }: {
+      designCnstnDocNo: string;
+      esntlAtchFileId: string;
+      body: DesignCnstnEsntlAtchFileUpdateRequestDto;
+    }) => designCnstnEsntlAtchFileService.update(designCnstnDocNo, esntlAtchFileId, body),
+    onSuccess: (_data, { designCnstnDocNo, esntlAtchFileId }) => {
+      queryClient.invalidateQueries({ queryKey: designCnstnEsntlAtchFileBaseKey });
+      queryClient.invalidateQueries({
+        queryKey: [
+          ...designCnstnEsntlAtchFileBaseKey,
+          "findById",
+          designCnstnDocNo,
+          esntlAtchFileId,
+        ],
+      });
+      queryClient.invalidateQueries({ queryKey: designCnstnMngBaseKey });
+    },
+  });
+}
+
+export function useDeleteDesignCnstnEsntlAtchFile() {
+  const queryClient = useQueryClient();
+  return useMutation({
+    mutationFn: ({
+      designCnstnDocNo,
+      esntlAtchFileId,
+    }: {
+      designCnstnDocNo: string;
+      esntlAtchFileId: string;
+    }) => designCnstnEsntlAtchFileService.delete(designCnstnDocNo, esntlAtchFileId),
+    onSuccess: () => {
+      queryClient.invalidateQueries({ queryKey: designCnstnEsntlAtchFileBaseKey });
+      queryClient.invalidateQueries({ queryKey: designCnstnMngBaseKey });
+    },
+  });
+}
+
+/* ─── DesignCnstnRvwOpnn ─── */
+
+export function useDesignCnstnRvwOpnnPage(params: DesignCnstnRvwOpnnSearchDto) {
+  return useQuery({
+    queryKey: [...designCnstnRvwOpnnBaseKey, "findPage", params],
+    queryFn: () => designCnstnRvwOpnnService.findPage(params),
+  });
+}
+
+export function useDesignCnstnRvwOpnn(
+  designCnstnDocNo: string | null | undefined,
+  rvwOpnnSn: number | null | undefined,
+) {
+  return useQuery({
+    queryKey: [...designCnstnRvwOpnnBaseKey, "findById", designCnstnDocNo, rvwOpnnSn],
+    queryFn: () => designCnstnRvwOpnnService.findById(designCnstnDocNo!, rvwOpnnSn!),
+    enabled: Boolean(designCnstnDocNo && rvwOpnnSn != null),
+  });
+}
+
+export function useSaveDesignCnstnRvwOpnn() {
+  const queryClient = useQueryClient();
+  return useMutation({
+    mutationFn: (body: DesignCnstnRvwOpnnSaveRequestDto) => designCnstnRvwOpnnService.save(body),
+    onSuccess: () => {
+      queryClient.invalidateQueries({ queryKey: designCnstnRvwOpnnBaseKey });
+      queryClient.invalidateQueries({ queryKey: designCnstnMngBaseKey });
+    },
+  });
+}
+
+export function useUpdateDesignCnstnRvwOpnn() {
+  const queryClient = useQueryClient();
+  return useMutation({
+    mutationFn: ({
+      designCnstnDocNo,
+      rvwOpnnSn,
+      body,
+    }: {
+      designCnstnDocNo: string;
+      rvwOpnnSn: number;
+      body: DesignCnstnRvwOpnnUpdateRequestDto;
+    }) => designCnstnRvwOpnnService.update(designCnstnDocNo, rvwOpnnSn, body),
+    onSuccess: (_data, { designCnstnDocNo, rvwOpnnSn }) => {
+      queryClient.invalidateQueries({ queryKey: designCnstnRvwOpnnBaseKey });
+      queryClient.invalidateQueries({
+        queryKey: [...designCnstnRvwOpnnBaseKey, "findById", designCnstnDocNo, rvwOpnnSn],
+      });
+      queryClient.invalidateQueries({ queryKey: designCnstnMngBaseKey });
+    },
+  });
+}
+
+export function useDeleteDesignCnstnRvwOpnn() {
+  const queryClient = useQueryClient();
+  return useMutation({
+    mutationFn: ({
+      designCnstnDocNo,
+      rvwOpnnSn,
+    }: {
+      designCnstnDocNo: string;
+      rvwOpnnSn: number;
+    }) => designCnstnRvwOpnnService.delete(designCnstnDocNo, rvwOpnnSn),
+    onSuccess: () => {
+      queryClient.invalidateQueries({ queryKey: designCnstnRvwOpnnBaseKey });
+      queryClient.invalidateQueries({ queryKey: designCnstnMngBaseKey });
+    },
+  });
+}
diff --git a/apps/as/src/entities/design-cnstn/index.ts b/apps/as/src/entities/design-cnstn/index.ts
new file mode 100644
index 000000000..ed6b6e1ae
--- /dev/null
+++ b/apps/as/src/entities/design-cnstn/index.ts
@@ -0,0 +1,88 @@
+export { designCnstnBizCstService } from "./api/design-cnstn-biz-cst-service";
+export { designCnstnBizSclService } from "./api/design-cnstn-biz-scl-service";
+export { designCnstnEsntlAtchFileService } from "./api/design-cnstn-esntl-atch-file-service";
+export { designCnstnMngService } from "./api/design-cnstn-mng-service";
+export { designCnstnRvwOpnnService } from "./api/design-cnstn-rvw-opnn-service";
+export {
+  designCnstnBizCstBaseKey,
+  designCnstnBizSclBaseKey,
+  designCnstnEsntlAtchFileBaseKey,
+  designCnstnMngBaseKey,
+  designCnstnRvwOpnnBaseKey,
+  useDeleteDesignCnstnBizCst,
+  useDeleteDesignCnstnBizScl,
+  useDeleteDesignCnstnEsntlAtchFile,
+  useDeleteDesignCnstnMng,
+  useDeleteDesignCnstnRvwOpnn,
+  useDesignCnstnBizCst,
+  useDesignCnstnBizCstPage,
+  useDesignCnstnBizScl,
+  useDesignCnstnBizSclPage,
+  useDesignCnstnEsntlAtchFile,
+  useDesignCnstnEsntlAtchFilePage,
+  useDesignCnstnMng,
+  useDesignCnstnMngPage,
+  useDesignCnstnRvwOpnn,
+  useDesignCnstnRvwOpnnPage,
+  useSaveApplyDesignCnstnMng,
+  useSaveDesignCnstnBizCst,
+  useSaveDesignCnstnBizScl,
+  useSaveDesignCnstnEsntlAtchFile,
+  useSaveDesignCnstnMng,
+  useSaveDesignCnstnRvwOpnn,
+  useTechReviewDesignCnstnMng,
+  useUpdateDesignCnstnBizCst,
+  useUpdateDesignCnstnBizScl,
+  useUpdateDesignCnstnEsntlAtchFile,
+  useUpdateDesignCnstnMng,
+  useUpdateDesignCnstnRvwOpnn,
+} from "./api/queries";
+export type {
+  DesignCnstnBizCstId,
+  DesignCnstnBizCstResponseDto,
+  DesignCnstnBizCstSaveRequestDto,
+  DesignCnstnBizCstSearchDto,
+  DesignCnstnBizCstService,
+  DesignCnstnBizCstUpdateRequestDto,
+} from "./model/design-cnstn-biz-cst-interface";
+export type {
+  DesignCnstnBizSclId,
+  DesignCnstnBizSclResponseDto,
+  DesignCnstnBizSclSaveRequestDto,
+  DesignCnstnBizSclSearchDto,
+  DesignCnstnBizSclService,
+  DesignCnstnBizSclUpdateRequestDto,
+} from "./model/design-cnstn-biz-scl-interface";
+export type {
+  DesignCnstnEsntlAtchFileId,
+  DesignCnstnEsntlAtchFileResponseDto,
+  DesignCnstnEsntlAtchFileSaveRequestDto,
+  DesignCnstnEsntlAtchFileSearchDto,
+  DesignCnstnEsntlAtchFileService,
+  DesignCnstnEsntlAtchFileUpdateRequestDto,
+} from "./model/design-cnstn-esntl-atch-file-interface";
+export type {
+  AtflMngClientResponseDto,
+  BizCstItem,
+  BizCstTreeDto,
+  BizSclTreeDto,
+  BzScaleItem,
+  DesignCnstnApplySaveRequestDto,
+  DesignCnstnMngDetResponseDto,
+  DesignCnstnMngResponseDto,
+  DesignCnstnMngSaveRequestDto,
+  DesignCnstnMngSearchDto,
+  DesignCnstnMngService,
+  DesignCnstnMngUpdateRequestDto,
+  DesignCnstnRvwOpnnResponseDto,
+  DesignCnstnRvwOpnnSaveRequestDto,
+  ElaprDocPrgrsClientResponseDto,
+  EsntlAtchFileItem,
+  EsntlAtchFileMngTreeResponseDto,
+} from "./model/design-cnstn-mng-interface";
+export type {
+  DesignCnstnRvwOpnnId,
+  DesignCnstnRvwOpnnSearchDto,
+  DesignCnstnRvwOpnnService,
+  DesignCnstnRvwOpnnUpdateRequestDto,
+} from "./model/design-cnstn-rvw-opnn-interface";
diff --git a/apps/as/src/entities/design-cnstn/model/design-cnstn-biz-cst-interface.ts b/apps/as/src/entities/design-cnstn/model/design-cnstn-biz-cst-interface.ts
new file mode 100644
index 000000000..bbf6519e9
--- /dev/null
+++ b/apps/as/src/entities/design-cnstn/model/design-cnstn-biz-cst-interface.ts
@@ -0,0 +1,54 @@
+import type { PageableParams, PageResponse } from "@/shared/model";
+
+/** 백엔드 DesignCnstnBizCstId */
+export interface DesignCnstnBizCstId {
+  designCnstnMng: string;
+  acntgSeCd: string;
+}
+
+/** 백엔드 DesignCnstnBizCstSaveRequestDto */
+export interface DesignCnstnBizCstSaveRequestDto {
+  designCnstnDocNo: string;
+  acntgSeCd: string;
+  bscPlanAmt?: number;
+  bgtRfltAmt?: number;
+  tstmDesignAmt?: number;
+}
+
+/** 백엔드 DesignCnstnBizCstUpdateRequestDto */
+export interface DesignCnstnBizCstUpdateRequestDto {
+  bscPlanAmt?: number;
+  bgtRfltAmt?: number;
+  tstmDesignAmt?: number;
+}
+
+/** 백엔드 DesignCnstnBizCstSearchDto + Pageable */
+export interface DesignCnstnBizCstSearchDto extends PageableParams {
+  designCnstnDocNo?: string;
+  acntgSeCd?: string;
+}
+
+/** 백엔드 DesignCnstnBizCstResponseDto */
+export interface DesignCnstnBizCstResponseDto {
+  designCnstnDocNo: string;
+  acntgSeCd: string;
+  bscPlanAmt?: number;
+  bgtRfltAmt?: number;
+  tstmDesignAmt?: number;
+  regDt?: string;
+}
+
+/** Controller public 메서드명·시그니처와 동일 */
+export interface DesignCnstnBizCstService {
+  findPage(
+    searchDto: DesignCnstnBizCstSearchDto,
+  ): Promise<PageResponse<DesignCnstnBizCstResponseDto>>;
+  findById(designCnstnDocNo: string, acntgSeCd: string): Promise<DesignCnstnBizCstResponseDto>;
+  save(body: DesignCnstnBizCstSaveRequestDto): Promise<DesignCnstnBizCstId>;
+  update(
+    designCnstnDocNo: string,
+    acntgSeCd: string,
+    body: DesignCnstnBizCstUpdateRequestDto,
+  ): Promise<void>;
+  delete(designCnstnDocNo: string, acntgSeCd: string): Promise<void>;
+}
diff --git a/apps/as/src/entities/design-cnstn/model/design-cnstn-biz-scl-interface.ts b/apps/as/src/entities/design-cnstn/model/design-cnstn-biz-scl-interface.ts
new file mode 100644
index 000000000..b7fd92140
--- /dev/null
+++ b/apps/as/src/entities/design-cnstn/model/design-cnstn-biz-scl-interface.ts
@@ -0,0 +1,54 @@
+import type { PageableParams, PageResponse } from "@/shared/model";
+
+/** 백엔드 DesignCnstnBizSclId */
+export interface DesignCnstnBizSclId {
+  designCnstnMng: string;
+  cnstpSeCd: string;
+}
+
+/** 백엔드 DesignCnstnBizSclSaveRequestDto */
+export interface DesignCnstnBizSclSaveRequestDto {
+  designCnstnDocNo: string;
+  cnstpSeCd: string;
+  bscPlanQty?: number;
+  bgtRfltQty?: number;
+  tstmDesignQty?: number;
+}
+
+/** 백엔드 DesignCnstnBizSclUpdateRequestDto */
+export interface DesignCnstnBizSclUpdateRequestDto {
+  bscPlanQty?: number;
+  bgtRfltQty?: number;
+  tstmDesignQty?: number;
+}
+
+/** 백엔드 DesignCnstnBizSclSearchDto + Pageable */
+export interface DesignCnstnBizSclSearchDto extends PageableParams {
+  designCnstnDocNo?: string;
+  cnstpSeCd?: string;
+}
+
+/** 백엔드 DesignCnstnBizSclResponseDto */
+export interface DesignCnstnBizSclResponseDto {
+  designCnstnDocNo: string;
+  cnstpSeCd: string;
+  bscPlanQty?: number;
+  bgtRfltQty?: number;
+  tstmDesignQty?: number;
+  regDt?: string;
+}
+
+/** Controller public 메서드명·시그니처와 동일 */
+export interface DesignCnstnBizSclService {
+  findPage(
+    searchDto: DesignCnstnBizSclSearchDto,
+  ): Promise<PageResponse<DesignCnstnBizSclResponseDto>>;
+  findById(designCnstnDocNo: string, cnstpSeCd: string): Promise<DesignCnstnBizSclResponseDto>;
+  save(body: DesignCnstnBizSclSaveRequestDto): Promise<DesignCnstnBizSclId>;
+  update(
+    designCnstnDocNo: string,
+    cnstpSeCd: string,
+    body: DesignCnstnBizSclUpdateRequestDto,
+  ): Promise<void>;
+  delete(designCnstnDocNo: string, cnstpSeCd: string): Promise<void>;
+}
diff --git a/apps/as/src/entities/design-cnstn/model/design-cnstn-esntl-atch-file-interface.ts b/apps/as/src/entities/design-cnstn/model/design-cnstn-esntl-atch-file-interface.ts
new file mode 100644
index 000000000..82666b60a
--- /dev/null
+++ b/apps/as/src/entities/design-cnstn/model/design-cnstn-esntl-atch-file-interface.ts
@@ -0,0 +1,51 @@
+import type { PageableParams, PageResponse } from "@/shared/model";
+
+/** 백엔드 DesignCnstnEsntlAtchFileId */
+export interface DesignCnstnEsntlAtchFileId {
+  designCnstnMng: string;
+  esntlAtchFileId: string;
+}
+
+/** 백엔드 DesignCnstnEsntlAtchFileSaveRequestDto */
+export interface DesignCnstnEsntlAtchFileSaveRequestDto {
+  designCnstnDocNo: string;
+  esntlAtchFileId: string;
+  atchFileGroupId?: string;
+}
+
+/** 백엔드 DesignCnstnEsntlAtchFileUpdateRequestDto */
+export interface DesignCnstnEsntlAtchFileUpdateRequestDto {
+  atchFileGroupId?: string;
+}
+
+/** 백엔드 DesignCnstnEsntlAtchFileSearchDto + Pageable */
+export interface DesignCnstnEsntlAtchFileSearchDto extends PageableParams {
+  designCnstnDocNo?: string;
+  esntlAtchFileId?: string;
+}
+
+/** 백엔드 DesignCnstnEsntlAtchFileResponseDto */
+export interface DesignCnstnEsntlAtchFileResponseDto {
+  designCnstnDocNo: string;
+  esntlAtchFileId: string;
+  atchFileGroupId?: string;
+  regDt?: string;
+}
+
+/** Controller public 메서드명·시그니처와 동일 */
+export interface DesignCnstnEsntlAtchFileService {
+  findPage(
+    searchDto: DesignCnstnEsntlAtchFileSearchDto,
+  ): Promise<PageResponse<DesignCnstnEsntlAtchFileResponseDto>>;
+  findById(
+    designCnstnDocNo: string,
+    esntlAtchFileId: string,
+  ): Promise<DesignCnstnEsntlAtchFileResponseDto>;
+  save(body: DesignCnstnEsntlAtchFileSaveRequestDto): Promise<DesignCnstnEsntlAtchFileId>;
+  update(
+    designCnstnDocNo: string,
+    esntlAtchFileId: string,
+    body: DesignCnstnEsntlAtchFileUpdateRequestDto,
+  ): Promise<void>;
+  delete(designCnstnDocNo: string, esntlAtchFileId: string): Promise<void>;
+}
diff --git a/apps/as/src/entities/design-cnstn/model/design-cnstn-mng-interface.ts b/apps/as/src/entities/design-cnstn/model/design-cnstn-mng-interface.ts
new file mode 100644
index 000000000..1ee2be991
--- /dev/null
+++ b/apps/as/src/entities/design-cnstn/model/design-cnstn-mng-interface.ts
@@ -0,0 +1,124 @@
+import type {
+  BizCstSaveBase,
+  BzScaleSaveBase,
+  EsntlAtchFileSaveBase,
+  PageableParams,
+  PageResponse,
+  PbadmsApplySaveHeader,
+  PbadmsMngDetResponseBase,
+} from "@/shared/model";
+
+import type {
+  DesignCnstnRvwOpnnResponseDto,
+  DesignCnstnRvwOpnnSaveRequestDto,
+} from "./design-cnstn-rvw-opnn-interface";
+
+export type {
+  DesignCnstnRvwOpnnResponseDto,
+  DesignCnstnRvwOpnnSaveRequestDto,
+} from "./design-cnstn-rvw-opnn-interface";
+export type {
+  AtflMngClientResponseDto,
+  BizCstTreeDto,
+  BizSclTreeDto,
+  ElaprDocPrgrsClientResponseDto,
+  EsntlAtchFileMngTreeResponseDto,
+} from "@/shared/model";
+
+/** 백엔드 DesignCnstnMngSaveRequestDto */
+export interface DesignCnstnMngSaveRequestDto {
+  designCnstnDocNo?: string;
+  admdstCd?: string;
+  envoSeComCd?: string;
+  taskSeComCd?: string;
+  bizNm?: string;
+  bizBgngYr?: string;
+  bizEndYr?: string;
+  bizCn?: string;
+  aplcntNm?: string;
+  aplcntMblTelno?: string;
+  aplcntOgdpNm?: string;
+  aplcntEmlAddr?: string;
+  dsgnrNm?: string;
+  dsgnrTelno?: string;
+  dsgnrOgdpNm?: string;
+  dsgnrEmlAddr?: string;
+  atchFileGroupId?: string;
+  prgrsSttsComCd?: string;
+}
+
+/** 백엔드 DesignCnstnMngUpdateRequestDto */
+export type DesignCnstnMngUpdateRequestDto = Omit<DesignCnstnMngSaveRequestDto, "designCnstnDocNo">;
+
+/** 백엔드 DesignCnstnMngSearchDto + Pageable */
+export interface DesignCnstnMngSearchDto extends PageableParams {
+  designCnstnDocNo?: string;
+  admdstCd?: string;
+  envoSeComCd?: string;
+  taskSeComCd?: string;
+  bizNm?: string;
+  bizBgngYr?: string;
+  bizEndYr?: string;
+  bizCn?: string;
+  aplcntNm?: string;
+  aplcntMblTelno?: string;
+  aplcntOgdpNm?: string;
+  aplcntEmlAddr?: string;
+  dsgnrNm?: string;
+  dsgnrTelno?: string;
+  dsgnrOgdpNm?: string;
+  dsgnrEmlAddr?: string;
+  atchFileGroupId?: string;
+}
+
+interface DesignCnstnMngResponseExtension {
+  designCnstnDocNo: string;
+  envoSeCdNm?: string;
+  taskSeCdNm?: string;
+  prgrsSttsCdNm?: string;
+  regDt?: string;
+  rgtr?: string;
+  rgtrNm?: string;
+  mdfcnDt?: string;
+  sido?: string;
+  gugun?: string;
+}
+
+/** 백엔드 DesignCnstnMngResponseDto */
+export type DesignCnstnMngResponseDto = Omit<DesignCnstnMngSaveRequestDto, "designCnstnDocNo"> &
+  DesignCnstnMngResponseExtension;
+
+/** 백엔드 DesignCnstnApplySaveRequestDto.BzScaleItem */
+export type BzScaleItem = BzScaleSaveBase;
+
+/** 백엔드 DesignCnstnApplySaveRequestDto.BizCstItem */
+export type BizCstItem = BizCstSaveBase;
+
+/** 백엔드 DesignCnstnApplySaveRequestDto.EsntlAtchFileItem */
+export type EsntlAtchFileItem = EsntlAtchFileSaveBase;
+
+/** 백엔드 DesignCnstnMngDetResponseDto */
+export type DesignCnstnMngDetResponseDto = PbadmsMngDetResponseBase<
+  DesignCnstnMngResponseDto,
+  DesignCnstnRvwOpnnResponseDto
+>;
+
+/** 백엔드 DesignCnstnApplySaveRequestDto */
+export interface DesignCnstnApplySaveRequestDto extends PbadmsApplySaveHeader {
+  designCnstnMng: DesignCnstnMngSaveRequestDto;
+  bzScaleList?: BzScaleItem[];
+  bizCstList?: BizCstItem[];
+  esntlAtchFileList?: EsntlAtchFileItem[];
+  rvwOpnnList?: DesignCnstnRvwOpnnSaveRequestDto[];
+}
+
+/** Controller public 메서드명·시그니처와 동일 */
+export interface DesignCnstnMngService {
+  findPage(searchDto: DesignCnstnMngSearchDto): Promise<PageResponse<DesignCnstnMngResponseDto>>;
+  findById(id: string): Promise<DesignCnstnMngDetResponseDto>;
+  save(body: DesignCnstnMngSaveRequestDto): Promise<string>;
+  saveApply(body: DesignCnstnApplySaveRequestDto): Promise<string>;
+  update(id: string, body: DesignCnstnMngUpdateRequestDto): Promise<void>;
+  techReview(id: string, body: DesignCnstnApplySaveRequestDto): Promise<void>;
+  delete(id: string): Promise<void>;
+}
diff --git a/apps/as/src/entities/design-cnstn/model/design-cnstn-rvw-opnn-interface.ts b/apps/as/src/entities/design-cnstn/model/design-cnstn-rvw-opnn-interface.ts
new file mode 100644
index 000000000..8b9841ee6
--- /dev/null
+++ b/apps/as/src/entities/design-cnstn/model/design-cnstn-rvw-opnn-interface.ts
@@ -0,0 +1,59 @@
+import type { PageableParams, PageResponse, RvwOpnnResponseExtension } from "@/shared/model";
+
+/** 백엔드 DesignCnstnRvwOpnnId */
+export interface DesignCnstnRvwOpnnId {
+  designCnstnMng: string;
+  rvwOpnnSn: number;
+}
+
+/** 백엔드 DesignCnstnRvwOpnnSaveRequestDto */
+export interface DesignCnstnRvwOpnnSaveRequestDto {
+  designCnstnDocNo: string;
+  rvwOpnnSn?: number;
+  opnrSeComCd?: string;
+  opnrNm?: string;
+  rvwRsltCn?: string;
+  rvwRsltAnmlyYn?: string;
+  atchFileGroupId?: string;
+}
+
+/** 백엔드 DesignCnstnRvwOpnnUpdateRequestDto */
+export interface DesignCnstnRvwOpnnUpdateRequestDto {
+  opnrSeComCd?: string;
+  opnrNm?: string;
+  rvwRsltCn?: string;
+  rvwRsltAnmlyYn?: string;
+  atchFileGroupId?: string;
+}
+
+/** 백엔드 DesignCnstnRvwOpnnSearchDto + Pageable */
+export interface DesignCnstnRvwOpnnSearchDto extends PageableParams {
+  designCnstnDocNo?: string;
+  opnrNm?: string;
+  opnrSeComCd?: string;
+  rvwRsltCn?: string;
+  rvwRsltAnmlyYn?: string;
+  atchFileGroupId?: string;
+}
+
+/** 백엔드 DesignCnstnRvwOpnnResponseDto */
+export type DesignCnstnRvwOpnnResponseDto = Partial<
+  Pick<DesignCnstnRvwOpnnSaveRequestDto, "designCnstnDocNo" | "rvwOpnnSn">
+> &
+  Omit<DesignCnstnRvwOpnnSaveRequestDto, "designCnstnDocNo" | "rvwOpnnSn"> &
+  RvwOpnnResponseExtension;
+
+/** Controller public 메서드명·시그니처와 동일 */
+export interface DesignCnstnRvwOpnnService {
+  findPage(
+    searchDto: DesignCnstnRvwOpnnSearchDto,
+  ): Promise<PageResponse<DesignCnstnRvwOpnnResponseDto>>;
+  findById(designCnstnDocNo: string, rvwOpnnSn: number): Promise<DesignCnstnRvwOpnnResponseDto>;
+  save(body: DesignCnstnRvwOpnnSaveRequestDto): Promise<DesignCnstnRvwOpnnId>;
+  update(
+    designCnstnDocNo: string,
+    rvwOpnnSn: number,
+    body: DesignCnstnRvwOpnnUpdateRequestDto,
+  ): Promise<void>;
+  delete(designCnstnDocNo: string, rvwOpnnSn: number): Promise<void>;
+}
diff --git a/apps/as/src/shared/config/api.ts b/apps/as/src/shared/config/api.ts
index 0aab98ed6..98992a063 100644
--- a/apps/as/src/shared/config/api.ts
+++ b/apps/as/src/shared/config/api.ts
@@ -17,6 +17,11 @@ export const ENDPOINT = {
     ADSTDSTR: "/as-service/api/v1/adstdstr",
     FNRS_CNSLTN_MNG: "/as-service/api/v1/fnrs-cnsltn-mng",
     FNRS_SHAR_SE: "/as-service/api/v1/fnrs-shar-se-mng",
+    DESIGN_CNSTN: "/as-service/api/v1/design-cnstn",
+    DESIGN_CNSTN_BIZ_CST: "/as-service/api/v1/design-cnstn-biz-cst",
+    DESIGN_CNSTN_BIZ_SCL: "/as-service/api/v1/design-cnstn-biz-scl",
+    DESIGN_CNSTN_ESNTL_ATCH_FILE: "/as-service/api/v1/design-cnstn-esntl-atch-file",
+    DESIGN_CNSTN_RVW_OPNN: "/as-service/api/v1/design-cnstn-rvw-opnn",
   },
   USER_SERVICE: {
     LOGIN: "/user-service/login",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index fd99062b0..664b5ea7d 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -1042,6 +1042,9 @@ importers:
       js-cookie:
         specifier: ^3.0.5
         version: 3.0.5
+      lucide-react:
+        specifier: ^0.474.0
+        version: 0.474.0(react@19.2.4)
       moment:
         specifier: ^2.30.1
         version: 2.30.1