diff --git a/src/main/kotlin/com/example/toyTeam6Airbnb/room/controller/Room.kt b/src/main/kotlin/com/example/toyTeam6Airbnb/room/controller/Room.kt
index ee1420c..63941a1 100644
--- a/src/main/kotlin/com/example/toyTeam6Airbnb/room/controller/Room.kt
+++ b/src/main/kotlin/com/example/toyTeam6Airbnb/room/controller/Room.kt
@@ -1,6 +1,7 @@
 package com.example.toyTeam6Airbnb.room.controller
 
 import com.example.toyTeam6Airbnb.room.persistence.Address
+import com.example.toyTeam6Airbnb.room.persistence.Price
 import com.example.toyTeam6Airbnb.room.persistence.RoomDetails
 import com.example.toyTeam6Airbnb.room.persistence.RoomType
 import java.time.Instant
@@ -13,9 +14,10 @@ data class Room(
     val type: RoomType,
     val address: Address,
     val roomDetails: RoomDetails,
-    val price: Double,
+    val price: Price,
     val maxOccupancy: Int,
     val rating: Double,
+    val reviewCount: Int,
     val isSuperhost: Boolean,
     val createdAt: Instant,
     val updatedAt: Instant
@@ -36,6 +38,7 @@ data class Room(
                 price = entity.price,
                 maxOccupancy = entity.maxOccupancy,
                 rating = averageRating,
+                reviewCount = entity.reviews.size,
                 isSuperhost = entity.host.isSuperhost(),
                 createdAt = entity.createdAt,
                 updatedAt = entity.updatedAt
@@ -69,6 +72,7 @@ data class Room(
             price = this.price,
             maxOccupancy = this.maxOccupancy,
             rating = this.rating,
+            reviewCount = this.reviewCount,
             isSuperhost = this.isSuperhost,
             createdAt = this.createdAt,
             updatedAt = this.updatedAt
@@ -83,7 +87,7 @@ data class RoomDTO(
     val description: String,
     val type: RoomType,
     val address: Address,
-    val price: Double,
+    val price: Price,
     val maxOccupancy: Int,
     val rating: Double
 )
@@ -96,9 +100,10 @@ data class RoomDetailsDTO(
     val type: RoomType,
     val address: Address,
     val roomDetails: RoomDetails,
-    val price: Double,
+    val price: Price,
     val maxOccupancy: Int,
     val rating: Double,
+    val reviewCount: Int,
     val isSuperhost: Boolean,
     val createdAt: Instant,
     val updatedAt: Instant
diff --git a/src/main/kotlin/com/example/toyTeam6Airbnb/room/controller/RoomController.kt b/src/main/kotlin/com/example/toyTeam6Airbnb/room/controller/RoomController.kt
index 657df73..2bd5b88 100644
--- a/src/main/kotlin/com/example/toyTeam6Airbnb/room/controller/RoomController.kt
+++ b/src/main/kotlin/com/example/toyTeam6Airbnb/room/controller/RoomController.kt
@@ -1,6 +1,7 @@
 package com.example.toyTeam6Airbnb.room.controller
 
 import com.example.toyTeam6Airbnb.room.persistence.Address
+import com.example.toyTeam6Airbnb.room.persistence.Price
 import com.example.toyTeam6Airbnb.room.persistence.RoomDetails
 import com.example.toyTeam6Airbnb.room.persistence.RoomType
 import com.example.toyTeam6Airbnb.room.service.RoomService
@@ -137,7 +138,7 @@ data class CreateRoomRequest(
     val type: RoomType,
     val address: Address,
     val roomDetails: RoomDetails,
-    val price: Double,
+    val price: Price,
     val maxOccupancy: Int
 )
 
@@ -147,6 +148,6 @@ data class UpdateRoomRequest(
     val type: RoomType,
     val address: Address,
     val roomDetails: RoomDetails,
-    val price: Double,
+    val price: Price,
     val maxOccupancy: Int
 )
diff --git a/src/main/kotlin/com/example/toyTeam6Airbnb/room/service/RoomService.kt b/src/main/kotlin/com/example/toyTeam6Airbnb/room/service/RoomService.kt
index 0cadf31..eaa189a 100644
--- a/src/main/kotlin/com/example/toyTeam6Airbnb/room/service/RoomService.kt
+++ b/src/main/kotlin/com/example/toyTeam6Airbnb/room/service/RoomService.kt
@@ -3,6 +3,7 @@ package com.example.toyTeam6Airbnb.room.service
 import com.example.toyTeam6Airbnb.room.controller.AddressSearchDTO
 import com.example.toyTeam6Airbnb.room.controller.Room
 import com.example.toyTeam6Airbnb.room.persistence.Address
+import com.example.toyTeam6Airbnb.room.persistence.Price
 import com.example.toyTeam6Airbnb.room.persistence.RoomDetails
 import com.example.toyTeam6Airbnb.room.persistence.RoomType
 import org.springframework.data.domain.Page
@@ -17,7 +18,7 @@ interface RoomService {
         type: RoomType,
         address: Address,
         roomDetails: RoomDetails,
-        price: Double,
+        price: Price,
         maxOccupancy: Int
     ): Room
 
@@ -33,7 +34,7 @@ interface RoomService {
         type: RoomType,
         address: Address,
         roomDetails: RoomDetails,
-        price: Double,
+        price: Price,
         maxOccupancy: Int
     ): Room
 
diff --git a/src/main/kotlin/com/example/toyTeam6Airbnb/room/service/RoomServiceImpl.kt b/src/main/kotlin/com/example/toyTeam6Airbnb/room/service/RoomServiceImpl.kt
index ecdb0ec..2a9e9de 100644
--- a/src/main/kotlin/com/example/toyTeam6Airbnb/room/service/RoomServiceImpl.kt
+++ b/src/main/kotlin/com/example/toyTeam6Airbnb/room/service/RoomServiceImpl.kt
@@ -16,6 +16,7 @@ import com.example.toyTeam6Airbnb.room.persistence.RoomDetails
 import com.example.toyTeam6Airbnb.room.persistence.RoomEntity
 import com.example.toyTeam6Airbnb.room.persistence.RoomRepository
 import com.example.toyTeam6Airbnb.room.persistence.RoomType
+import com.example.toyTeam6Airbnb.room.persistence.Price
 import com.example.toyTeam6Airbnb.user.AuthenticateException
 import com.example.toyTeam6Airbnb.user.persistence.UserRepository
 import org.springframework.dao.DataIntegrityViolationException
@@ -40,16 +41,14 @@ class RoomServiceImpl(
         type: RoomType,
         address: Address,
         roomDetails: RoomDetails,
-        price: Double,
+        price: Price,
         maxOccupancy: Int
     ): Room {
         val hostEntity = userRepository.findByIdOrNull(hostId) ?: throw AuthenticateException()
 
         validateRoomInfo(name, description, type, address, price, maxOccupancy)
 
-        if (roomRepository.existsByNameAndTypeAndAddress(name, type, address)) {
-            throw DuplicateRoomException()
-        }
+        if (roomRepository.existsByAddress(address)) throw DuplicateRoomException()
 
         try {
             val roomEntity = RoomEntity(
@@ -93,20 +92,18 @@ class RoomServiceImpl(
         type: RoomType,
         address: Address,
         roomDetails: RoomDetails,
-        price: Double,
+        price: Price,
         maxOccupancy: Int
     ): Room {
         val hostEntity = userRepository.findByIdOrNull(hostId) ?: throw AuthenticateException()
         val roomEntity = roomRepository.findByIdOrNullForUpdate(roomId) ?: throw RoomNotFoundException()
 
-        if (roomEntity.host.id != hostEntity.id) {
-            throw RoomPermissionDeniedException()
-        }
+        if (roomEntity.host.id != hostEntity.id) throw RoomPermissionDeniedException()
 
         validateRoomInfo(name, description, type, address, price, maxOccupancy)
 
-        if (roomRepository.existsByNameAndTypeAndAddress(name, type, address) &&
-            (roomEntity.name != name || roomEntity.type != type || roomEntity.address != address)
+        if (roomRepository.existsByAddress(address) &&
+            (roomEntity.address != address)
         ) {
             throw DuplicateRoomException()
         }
@@ -171,12 +168,12 @@ class RoomServiceImpl(
         description: String,
         type: RoomType,
         address: Address,
-        price: Double,
+        price: Price,
         maxOccupancy: Int
     ) {
         if (name.isBlank()) throw InvalidNameException()
         if (description.isBlank()) throw InvalidDescriptionException()
-        if (price <= 0) throw InvalidPriceException()
+        validatePrice(price)
         if (maxOccupancy <= 0) throw InvalidMaxOccupancyException()
 
         try {
@@ -188,6 +185,16 @@ class RoomServiceImpl(
         validateAddress(address)
     }
 
+    private fun validatePrice(price: Price){
+        if (price.perNight <= 0 ||
+            price.cleaningFee < 0 ||
+            price.charge < 0 ||
+            price.updateTotal() <= 0
+            ){
+            throw InvalidPriceException()
+        }
+    }
+
     private fun validateAddress(address: Address) {
         if (address.sido.isBlank() ||
             address.sigungu.isBlank() ||