diff --git a/src/space-model/dtos/update-space-model.dto.ts b/src/space-model/dtos/update-space-model.dto.ts
index fc2f6aa..09b196d 100644
--- a/src/space-model/dtos/update-space-model.dto.ts
+++ b/src/space-model/dtos/update-space-model.dto.ts
@@ -1,6 +1,20 @@
 import { ApiProperty } from '@nestjs/swagger';
-import { IsOptional, IsString } from 'class-validator';
+import { IsArray, IsOptional, IsString, ValidateNested } from 'class-validator';
+import { CreateSubspaceModelDto } from './create-subspace-model.dto';
+import { Type } from 'class-transformer';
 
+export class UpdateSubspaceModelDto {
+  @ApiProperty({
+    description: 'List of subspaces to add',
+    type: [CreateSubspaceModelDto],
+    required: false,
+  })
+  @IsOptional()
+  @IsArray()
+  @ValidateNested({ each: true })
+  @Type(() => CreateSubspaceModelDto)
+  add?: CreateSubspaceModelDto[];
+}
 export class UpdateSpaceModelDto {
   @ApiProperty({
     description: 'Updated name of the space model',
@@ -9,4 +23,7 @@ export class UpdateSpaceModelDto {
   @IsOptional()
   @IsString()
   modelName?: string;
+
+  @IsOptional()
+  subspaceModels?: UpdateSubspaceModelDto;
 }
diff --git a/src/space-model/services/space-model.service.ts b/src/space-model/services/space-model.service.ts
index dc1a11e..805ffa0 100644
--- a/src/space-model/services/space-model.service.ts
+++ b/src/space-model/services/space-model.service.ts
@@ -146,6 +146,15 @@ export class SpaceModelService {
 
       await queryRunner.manager.save(spaceModel);
 
+      if (dto.subspaceModels) {
+        const updatedSubspaces =
+          await this.subSpaceModelService.updateSubSpaceModels(
+            dto.subspaceModels,
+            spaceModel,
+            queryRunner,
+          );
+      }
+
       await queryRunner.commitTransaction();
 
       return new SuccessResponseDto({
diff --git a/src/space-model/services/subspace/subspace-model.service.ts b/src/space-model/services/subspace/subspace-model.service.ts
index 222dee4..6814362 100644
--- a/src/space-model/services/subspace/subspace-model.service.ts
+++ b/src/space-model/services/subspace/subspace-model.service.ts
@@ -3,7 +3,7 @@ import {
   SubspaceModelRepository,
 } from '@app/common/modules/space-model';
 import { HttpException, HttpStatus, Injectable } from '@nestjs/common';
-import { CreateSubspaceModelDto } from '../../dtos';
+import { CreateSubspaceModelDto, UpdateSubspaceModelDto } from '../../dtos';
 import { QueryRunner } from 'typeorm';
 import { SubspaceProductModelService } from './subspace-product-model.service';
 
@@ -29,19 +29,25 @@ export class SubSpaceModelService {
         }),
       );
 
-      await queryRunner.manager.save(subspaces);
+      const newSubspaces = await queryRunner.manager.save(subspaces);
 
-      await Promise.all(
-        subSpaceModelDtos.map((dto, index) => {
-          const subspaceModel = subspaces[index];
-          return this.subSpaceProducetModelService.createSubspaceProductModels(
-            dto.spaceProductModels,
-            spaceModel,
+      const addedSubspaces = await Promise.all(
+        subSpaceModelDtos.map(async (dto, index) => {
+          const subspaceModel = newSubspaces[index];
+          const productModels =
+            await this.subSpaceProducetModelService.createSubspaceProductModels(
+              dto.spaceProductModels,
+              spaceModel,
+              subspaceModel,
+              queryRunner,
+            );
+          return {
             subspaceModel,
-            queryRunner,
-          );
+            productModels,
+          };
         }),
       );
+      return addedSubspaces;
     } catch (error) {
       if (error instanceof HttpException) {
         throw error;
@@ -61,7 +67,6 @@ export class SubSpaceModelService {
         HttpStatus.BAD_REQUEST,
       );
     }
-
     const incomingNames = subSpaceModelDtos.map((dto) => dto.subspaceName);
     this.validateName(incomingNames);
   }
@@ -85,4 +90,28 @@ export class SubSpaceModelService {
       );
     }
   }
+
+  async updateSubSpaceModels(
+    dto: UpdateSubspaceModelDto,
+    spaceModel: SpaceModelEntity,
+    queryRunner: QueryRunner,
+  ) {
+    const subspaces: { new?: any } = {};
+    try {
+      if (dto.add) {
+        const addedSubspaces = await this.createSubSpaceModels(
+          dto.add,
+          spaceModel,
+          queryRunner,
+        );
+        subspaces.new = addedSubspaces;
+      }
+      return subspaces;
+    } catch (error) {
+      throw new HttpException(
+        error.message || 'Failed to update SpaceModel',
+        HttpStatus.INTERNAL_SERVER_ERROR,
+      );
+    }
+  }
 }
diff --git a/src/space-model/services/subspace/subspace-product-item-model.service.ts b/src/space-model/services/subspace/subspace-product-item-model.service.ts
index 393a5f3..85989f8 100644
--- a/src/space-model/services/subspace/subspace-product-item-model.service.ts
+++ b/src/space-model/services/subspace/subspace-product-item-model.service.ts
@@ -2,6 +2,7 @@ import { HttpException, HttpStatus, Injectable } from '@nestjs/common';
 import { QueryRunner } from 'typeorm';
 import {
   SpaceModelEntity,
+  SubspaceProductItemModelEntity,
   SubspaceProductItemModelRepository,
   SubspaceProductModelEntity,
 } from '@app/common/modules/space-model';
@@ -21,7 +22,7 @@ export class SubspaceProductItemModelService extends BaseProductItemService {
     subspaceProductModel: SubspaceProductModelEntity,
     spaceModel: SpaceModelEntity,
     queryRunner: QueryRunner,
-  ) {
+  ): Promise<SubspaceProductItemModelEntity[]> {
     if (!subspaceProductModel) {
       throw new HttpException(
         'The spaceProductModel parameter is required but was not provided.',
@@ -38,6 +39,7 @@ export class SubspaceProductItemModelService extends BaseProductItemService {
       );
 
       await queryRunner.manager.save(productItems);
+      return productItems;
     } catch (error) {
       if (error instanceof HttpException) {
         throw error;
diff --git a/src/space-model/services/subspace/subspace-product-model.service.ts b/src/space-model/services/subspace/subspace-product-model.service.ts
index 30f9062..8b3f9ac 100644
--- a/src/space-model/services/subspace/subspace-product-model.service.ts
+++ b/src/space-model/services/subspace/subspace-product-model.service.ts
@@ -27,6 +27,8 @@ export class SubspaceProductModelService extends BaseProductModelService {
     queryRunner: QueryRunner,
   ) {
     try {
+      if (!spaceProductModelDtos?.length) return;
+
       const productModels = await Promise.all(
         spaceProductModelDtos.map(async (dto) => {
           this.validateProductCount(dto);
@@ -44,17 +46,23 @@ export class SubspaceProductModelService extends BaseProductModelService {
 
       const savedProductModels = await queryRunner.manager.save(productModels);
 
-      await Promise.all(
-        spaceProductModelDtos.map((dto, index) => {
+      const newProductModels = await Promise.all(
+        spaceProductModelDtos.map(async (dto, index) => {
           const savedModel = savedProductModels[index];
-          return this.subspaceProductItemModelService.createProdutItemModel(
-            dto.items,
-            savedModel, // Pass the saved model
-            spaceModel,
-            queryRunner,
-          );
+          const productItemModels =
+            await this.subspaceProductItemModelService.createProdutItemModel(
+              dto.items,
+              savedModel,
+              spaceModel,
+              queryRunner,
+            );
+          return {
+            productModel: savedModel,
+            productItemModels,
+          };
         }),
       );
+      return newProductModels;
     } catch (error) {
       if (error instanceof HttpException) {
         throw error;