diff --git a/apps/server/src/modules/room/api/dto/request/create-room.body.params.ts b/apps/server/src/modules/room/api/dto/request/create-room.body.params.ts
index 286abeba50c..d21d64fd10a 100644
--- a/apps/server/src/modules/room/api/dto/request/create-room.body.params.ts
+++ b/apps/server/src/modules/room/api/dto/request/create-room.body.params.ts
@@ -4,7 +4,7 @@ import { RoomCreateProps } from '@src/modules/room/domain';
 import { RoomColor } from '@src/modules/room/domain/type';
 import { IsDate, IsEnum, IsOptional, IsString, MaxLength, MinLength } from 'class-validator';
 
-export class CreateRoomBodyParams implements RoomCreateProps {
+export class CreateRoomBodyParams implements Omit<RoomCreateProps, 'schoolId'> {
 	@ApiProperty({
 		description: 'The name of the room',
 		required: true,
diff --git a/apps/server/src/modules/room/api/dto/response/room-details.response.ts b/apps/server/src/modules/room/api/dto/response/room-details.response.ts
index f0d39b68284..197c1763206 100644
--- a/apps/server/src/modules/room/api/dto/response/room-details.response.ts
+++ b/apps/server/src/modules/room/api/dto/response/room-details.response.ts
@@ -13,6 +13,9 @@ export class RoomDetailsResponse {
 	@IsEnum(RoomColor)
 	color: RoomColor;
 
+	@ApiProperty()
+	schoolId: string;
+
 	@ApiPropertyOptional({ type: Date })
 	startDate?: Date;
 
@@ -29,6 +32,7 @@ export class RoomDetailsResponse {
 		this.id = room.id;
 		this.name = room.name;
 		this.color = room.color;
+		this.schoolId = room.schoolId;
 
 		this.startDate = room.startDate;
 		this.endDate = room.endDate;
diff --git a/apps/server/src/modules/room/api/dto/response/room-item.response.ts b/apps/server/src/modules/room/api/dto/response/room-item.response.ts
index 88b13ec3dab..3c8bffded23 100644
--- a/apps/server/src/modules/room/api/dto/response/room-item.response.ts
+++ b/apps/server/src/modules/room/api/dto/response/room-item.response.ts
@@ -13,6 +13,9 @@ export class RoomItemResponse {
 	@IsEnum(RoomColor)
 	color: RoomColor;
 
+	@ApiProperty()
+	schoolId: string;
+
 	@ApiPropertyOptional({ type: Date })
 	startDate?: Date;
 
@@ -29,6 +32,7 @@ export class RoomItemResponse {
 		this.id = room.id;
 		this.name = room.name;
 		this.color = room.color;
+		this.schoolId = room.schoolId;
 
 		this.startDate = room.startDate;
 		this.endDate = room.endDate;
diff --git a/apps/server/src/modules/room/api/mapper/room.mapper.ts b/apps/server/src/modules/room/api/mapper/room.mapper.ts
index 02fd43a659f..4b69e2a34ef 100644
--- a/apps/server/src/modules/room/api/mapper/room.mapper.ts
+++ b/apps/server/src/modules/room/api/mapper/room.mapper.ts
@@ -14,6 +14,7 @@ export class RoomMapper {
 			id: room.id,
 			name: room.name,
 			color: room.color,
+			schoolId: room.schoolId,
 			startDate: room.startDate,
 			endDate: room.endDate,
 			createdAt: room.createdAt,
@@ -37,6 +38,7 @@ export class RoomMapper {
 			id: room.id,
 			name: room.name,
 			color: room.color,
+			schoolId: room.schoolId,
 			startDate: room.startDate,
 			endDate: room.endDate,
 			createdAt: room.createdAt,
diff --git a/apps/server/src/modules/room/api/room.uc.ts b/apps/server/src/modules/room/api/room.uc.ts
index 1691df897a9..d7b5ef8e3a1 100644
--- a/apps/server/src/modules/room/api/room.uc.ts
+++ b/apps/server/src/modules/room/api/room.uc.ts
@@ -8,8 +8,10 @@ import { Page, UserDO } from '@shared/domain/domainobject';
 import { IFindOptions, Permission, RoleName, RoomRole } from '@shared/domain/interface';
 import { EntityId } from '@shared/domain/types';
 import { BoardExternalReferenceType, ColumnBoard, ColumnBoardService } from '@src/modules/board';
-import { Room, RoomCreateProps, RoomService, RoomUpdateProps } from '../domain';
+import { Room, RoomService } from '../domain';
 import { RoomConfig } from '../room.config';
+import { CreateRoomBodyParams } from './dto/request/create-room.body.params';
+import { UpdateRoomBodyParams } from './dto/request/update-room.body.params';
 import { RoomMemberResponse } from './dto/response/room-member.response';
 
 @Injectable()
@@ -31,11 +33,11 @@ export class RoomUc {
 		return rooms;
 	}
 
-	public async createRoom(userId: EntityId, props: RoomCreateProps): Promise<Room> {
+	public async createRoom(userId: EntityId, props: CreateRoomBodyParams): Promise<Room> {
 		this.checkFeatureEnabled();
 
 		const user = await this.authorizationService.getUserWithPermissions(userId);
-		const room = await this.roomService.createRoom(props);
+		const room = await this.roomService.createRoom({ ...props, schoolId: user.school.id });
 		// NOTE: currently only teacher are allowed to create rooms. Could not find simpler way to check this.
 		this.authorizationService.checkOneOfPermissions(user, [Permission.COURSE_CREATE]);
 		await this.roomMemberService
@@ -72,7 +74,7 @@ export class RoomUc {
 		return boards;
 	}
 
-	public async updateRoom(userId: EntityId, roomId: EntityId, props: RoomUpdateProps): Promise<Room> {
+	public async updateRoom(userId: EntityId, roomId: EntityId, props: UpdateRoomBodyParams): Promise<Room> {
 		this.checkFeatureEnabled();
 		const room = await this.roomService.getSingleRoom(roomId);
 
diff --git a/apps/server/src/modules/room/api/test/room-get.api.spec.ts b/apps/server/src/modules/room/api/test/room-get.api.spec.ts
index fe842db3d7f..ef4b1462ebb 100644
--- a/apps/server/src/modules/room/api/test/room-get.api.spec.ts
+++ b/apps/server/src/modules/room/api/test/room-get.api.spec.ts
@@ -114,6 +114,7 @@ describe('Room Controller (API)', () => {
 					id: room.id,
 					name: room.name,
 					color: room.color,
+					schoolId: room.schoolId,
 					startDate: room.startDate?.toISOString(),
 					endDate: room.endDate?.toISOString(),
 					createdAt: room.createdAt.toISOString(),
diff --git a/apps/server/src/modules/room/api/test/room-index.api.spec.ts b/apps/server/src/modules/room/api/test/room-index.api.spec.ts
index ca0a1c22658..e43d1ef113f 100644
--- a/apps/server/src/modules/room/api/test/room-index.api.spec.ts
+++ b/apps/server/src/modules/room/api/test/room-index.api.spec.ts
@@ -86,6 +86,7 @@ describe('Room Controller (API)', () => {
 						id: room.id,
 						name: room.name,
 						color: room.color,
+						schoolId: room.schoolId,
 						startDate: room.startDate?.toISOString(),
 						endDate: room.endDate?.toISOString(),
 						createdAt: room.createdAt.toISOString(),
@@ -152,6 +153,7 @@ describe('Room Controller (API)', () => {
 						id: room.id,
 						name: room.name,
 						color: room.color,
+						schoolId: room.schoolId,
 						startDate: room.startDate?.toISOString(),
 						endDate: room.endDate?.toISOString(),
 						createdAt: room.createdAt.toISOString(),
diff --git a/apps/server/src/modules/room/domain/do/room.do.ts b/apps/server/src/modules/room/domain/do/room.do.ts
index 05feb9d07d4..e5ee61ad6da 100644
--- a/apps/server/src/modules/room/domain/do/room.do.ts
+++ b/apps/server/src/modules/room/domain/do/room.do.ts
@@ -9,12 +9,13 @@ export interface RoomProps extends AuthorizableObject {
 	color: RoomColor;
 	startDate?: Date;
 	endDate?: Date;
+	schoolId: EntityId;
 	createdAt: Date;
 	updatedAt: Date;
 }
 
-export type RoomCreateProps = Pick<RoomProps, 'name' | 'color' | 'startDate' | 'endDate'>;
-export type RoomUpdateProps = RoomCreateProps; // will probably change in the future
+export type RoomCreateProps = Pick<RoomProps, 'name' | 'color' | 'startDate' | 'endDate' | 'schoolId'>;
+export type RoomUpdateProps = Omit<RoomCreateProps, 'schoolId'>;
 
 export class Room extends DomainObject<RoomProps> {
 	public constructor(props: RoomProps) {
@@ -48,6 +49,10 @@ export class Room extends DomainObject<RoomProps> {
 		this.props.color = value;
 	}
 
+	public get schoolId(): EntityId {
+		return this.props.schoolId;
+	}
+
 	public get startDate(): Date | undefined {
 		return this.props.startDate;
 	}
diff --git a/apps/server/src/modules/room/repo/entity/room.entity.ts b/apps/server/src/modules/room/repo/entity/room.entity.ts
index 3a174be1d9d..a44cf367482 100644
--- a/apps/server/src/modules/room/repo/entity/room.entity.ts
+++ b/apps/server/src/modules/room/repo/entity/room.entity.ts
@@ -1,5 +1,7 @@
 import { Entity, Property } from '@mikro-orm/core';
 import { BaseEntityWithTimestamps } from '@shared/domain/entity/base.entity';
+import { EntityId } from '@shared/domain/types';
+import { ObjectIdType } from '@shared/repo/types/object-id.type';
 import { Room, RoomProps } from '../../domain/do/room.do';
 import { RoomColor } from '../../domain/type';
 
@@ -11,6 +13,9 @@ export class RoomEntity extends BaseEntityWithTimestamps implements RoomProps {
 	@Property({ nullable: false })
 	color!: RoomColor;
 
+	@Property({ type: ObjectIdType, nullable: false })
+	schoolId!: EntityId;
+
 	@Property({ nullable: true })
 	startDate?: Date;
 
diff --git a/apps/server/src/modules/room/testing/room-entity.factory.ts b/apps/server/src/modules/room/testing/room-entity.factory.ts
index fee0b2c80b0..ad2e979750e 100644
--- a/apps/server/src/modules/room/testing/room-entity.factory.ts
+++ b/apps/server/src/modules/room/testing/room-entity.factory.ts
@@ -9,6 +9,7 @@ export const roomEntityFactory = EntityFactory.define<RoomEntity, RoomProps>(Roo
 		id: new ObjectId().toHexString(),
 		name: `room #${sequence}`,
 		color: [RoomColor.BLUE, RoomColor.RED, RoomColor.GREEN, RoomColor.MAGENTA][Math.floor(Math.random() * 4)],
+		schoolId: new ObjectId().toHexString(),
 		startDate: new Date(),
 		endDate: new Date(Date.now() + 1000 * 60 * 60 * 24 * 7),
 		createdAt: new Date(),
diff --git a/apps/server/src/modules/room/testing/room.factory.ts b/apps/server/src/modules/room/testing/room.factory.ts
index 099c98b831c..7f1ef879488 100644
--- a/apps/server/src/modules/room/testing/room.factory.ts
+++ b/apps/server/src/modules/room/testing/room.factory.ts
@@ -8,6 +8,7 @@ export const roomFactory = BaseFactory.define<Room, RoomProps>(Room, ({ sequence
 		id: new ObjectId().toHexString(),
 		name: `room #${sequence}`,
 		color: [RoomColor.BLUE, RoomColor.RED, RoomColor.GREEN, RoomColor.MAGENTA][Math.floor(Math.random() * 4)],
+		schoolId: new ObjectId().toHexString(),
 		startDate: new Date(),
 		createdAt: new Date(),
 		updatedAt: new Date(),