diff --git a/domain/src/main/java/com/ftw/domain/entity/BuildingType.kt b/domain/src/main/java/com/ftw/domain/entity/BuildingType.kt
new file mode 100644
index 0000000..9a8aa20
--- /dev/null
+++ b/domain/src/main/java/com/ftw/domain/entity/BuildingType.kt
@@ -0,0 +1,6 @@
+package com.ftw.domain.entity
+
+enum class BuildingType {
+    APARTMENT,
+    OFFICETEL
+}
diff --git a/domain/src/main/java/com/ftw/domain/entity/Company.kt b/domain/src/main/java/com/ftw/domain/entity/Company.kt
new file mode 100644
index 0000000..30a96fb
--- /dev/null
+++ b/domain/src/main/java/com/ftw/domain/entity/Company.kt
@@ -0,0 +1,10 @@
+package com.ftw.domain.entity
+
+data class Company(
+    val name: String,
+    val location: String
+) {
+    companion object {
+        val NONE = Company("", "")
+    }
+}
diff --git a/domain/src/main/java/com/ftw/domain/entity/LocationReview.kt b/domain/src/main/java/com/ftw/domain/entity/LocationReview.kt
new file mode 100644
index 0000000..f69ec7a
--- /dev/null
+++ b/domain/src/main/java/com/ftw/domain/entity/LocationReview.kt
@@ -0,0 +1,6 @@
+package com.ftw.domain.entity
+
+data class LocationReview(
+    val location: String,
+    val reviews: List<Review>
+)
diff --git a/domain/src/main/java/com/ftw/domain/entity/Review.kt b/domain/src/main/java/com/ftw/domain/entity/Review.kt
new file mode 100644
index 0000000..ace6c3d
--- /dev/null
+++ b/domain/src/main/java/com/ftw/domain/entity/Review.kt
@@ -0,0 +1,15 @@
+package com.ftw.domain.entity
+
+import java.util.Date
+
+data class Review(
+    val buildingName: String,
+    val buildingType: BuildingType,
+    val address: String,
+    val rating: Int,
+    val officeLocation: String,
+    val advantage: String,
+    val disadvantage: String,
+    val favorite: Boolean,
+    val leftAt: Date
+)
diff --git a/domain/src/main/java/com/ftw/domain/entity/User.kt b/domain/src/main/java/com/ftw/domain/entity/User.kt
new file mode 100644
index 0000000..d728162
--- /dev/null
+++ b/domain/src/main/java/com/ftw/domain/entity/User.kt
@@ -0,0 +1,9 @@
+package com.ftw.domain.entity
+
+data class User(
+    val company: Company?
+) {
+    companion object {
+        val NONE = User(Company.NONE)
+    }
+}